Wind Pressure Calculator

Bernoulli's equation is used to change dynamic wind pressure to equivalent static pressure and. A central rotating shaft connects the major components of the drivetrain. The best tire pressure to use is a subject of much debate. We hope you can find what you need here. Wind loads can dama ge architectural glass. These coefficients are then combined with the gust factor and velocity pressures to obtain the external pressures in each region. 1 %: Dew Point Temperature: 70 °F: Wet Bulb: 70. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. 3/21/2013 2 • ASCE 7‐10 Section 27. A windturbine is composed of rotor often fitted with several blades. Wind Speed to Pressure (PSF) Building code lists wind speed in MPH (Miles Per Hour). 75 hours) to travel 1,650 miles. JAR/ STS Boral Stone-Wind Pressure Tables Revision 2: 01/25/12 Scope Architectural Testing, Inc. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. Denali, also known as Mount McKinley, is the highest peak in North America. Therefore, the SI wind load unit is Newtons or Pascals. Since wind is air in motion the resulting wind pressures are related to its kinetic energy and can be determined by the following expression: q = γ ( V 2 / 2 g ) where: q = Wind pressure in lb/ft 2 or N/m 2 (pascal). Wind pressure refers to the pressure given to the air by an air blower. Dynamic pressure is the pressure of a fluid that results from its motion. 00256 x V 2, where V is the speed of the wind in miles per hour (mph). acting on a plate), or do I have to adjust the pressure for a pipe when inputting the figure in AutoPIPE? 13. Wind pressure is a force measured in pounds per square foot (psf). NOTE: Table 8. Wind pressure is given by the equation P = 0. If you know these three variables, you can easily convert wind speed to pressure in pounds per square inch (psi). WindPressuresonStructures 699 considerthatthe stresses due to wind pressure depend on the form of the structure, the sizeof thestructure,the speed and direction of the. Zone 4 Coeff. Wind energy and wind turbines were among my first interests as a beginning engineer and I hoped to work in that field. This value is vital for many further calculations, such as determining the aerodynamic drag forces or the performance of wind turbines. To use this page, you need to provide the calculator with three parameters: air temperature, air pressure, and dew point. 00256 (lb/ft) 0. 0 mb 103: 1010. The wind action on the structure (forces and pressures) can be derived from the peak velocity pressure. Convert between many different pressure equivalents. Calculation of Lateral Pressure on Concrete Formwork ACI 347-04 specify that, concrete lateral pressure is computed as per Equation-1 if fresh concrete slump value is greater than 175 mm and does not placed with normal internal vibration to a depth of 1. It's very powerful yet extremely easy. The technique is called "a depression of 21 kPa. See wind pressure calculation table Kz @ z z = highest opening affecting pressure Kd Wind directionality factor obtained from Table 6-4 1. 5 "Edge Securement for Low Slope Roof. 8 and figure 26. Temperature • Wind Speed • Wind Chill • Heat Index • Relative Humidity Dew Point from Relative Humidity • Wet-bulb from Relative Humidity • Station Pressure. We always effort to show a picture with HD resolution or at least with perfect images. 7 inch H 2 O = 1 psi; 1 cm H 2 O = 98. Some characteristics of the measured wind pressure field on the surfaces of the models were analyzed, including mean wind pressure, fluctuating wind pressure, peak negative wind. Examples for basic wind speed of 90 mph from 15 to 45 degree are shown below. Wind uplift on roof deck ronster (Structural) (OP) 3 Mar 09 12:18. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. Wind Pressure Calculator. s 2 - prior to 1971 the unit was simply known as N/m2). voluntary national standards and is the U. Calculate the total wind pressure. Not like it is hard to google "comics air pressure" and press enter, then images. ' Read it or download it for free. 2 as well as for the side walls. To link to this RPM to Linear Velocity Calculator page, copy the following code to your site:. Integrate CHECKWIND into your existing software solutions using the CHECKWIND. Hurricane Wind Speed Calculator Hurricane Wind Speed Calculations are estimated. VERY EXTENSIVE. 74 kPa StormShield testing based on panel size 1800 x 700mm 12,14mm StormShield (depending on window size) 8 mm StormShield 5. A design wind pressure of {{result_of_design_wind_pressure. Read National Geographic's latest stories about the environment. Where material that was not specific to wind was removed from a code section, “partial shown” is indicated. Mean roof height is calculated by averaging the eave and ridge heights, and is used as part of design pressure calculations in both ASCE7 and the International Building Code. Field measurements have been collected on more than a dozen buildings in several different countries. * Conversion is a basic mathematical calculation which does not consider environment and/or location. Calculate Q-vector at a given pressure level using the u, v winds and temperature. air density (kg/m 3) wind speed (m/s) area (m 2). The wind speed can be used to calculate a wind pressure using the Bernoulli Equation relating velocities to pressures. Since wind is air in motion the resulting wind pressures are related to its kinetic energy and can be determined by the following expression: q = γ ( V 2 / 2 g ) where: q = Wind pressure in lb/ft 2 or N/m 2 (pascal). The services are primarily tailored to the special wind load requirements for the state of Florida. Scattered severe thunderstorms with damaging winds, large hail and heavy rain are likely from the southern Plains into the Mid to Lower Mississippi Valley today. If you multiply that result by 1. Internal pressure coefficient The wind pressure acting on the internal surfaces of a structure, w i should be obtained from the following expression w i = q p (z i) × c pi where: z i is the reference height for the internal pressure c pi is the pressure coefficient for the internal pressure EN 1991-1-4 §5. However, we don't know how much area you are exposing to the wind. 75 hours) to travel 1,650 miles. The wind zone is either determined directly or by selecting a city. This calculator determines the size of each tributary area of your deck. com Wind Pressure Calculator. Based on this research, and some CFD modeling studies,. A windturbine is composed of rotor often fitted with several blades. Local and general external coefficients are given in EC1-1-4 and IS 875-3-1987 whereas BS 6399-2-1997 and MS 1553-2002 don't provide. Based on wind tunnel tests with rigid models, wind pressure distributions on gable roof buildings with different aspect ratios were measured simultaneously. The wind pressure acting on a building face is the product of the dynamic pressure (0. Wind Loading Calculator Tool Input. Outputs include compression spring force, force on a spring, spring force constant, and spring rates. If the force is 1 kgf and the area 1 cm2, then the pressure in bar would equal 1. 5 psig, and, 0. Numerical wave models, like WW3, are able to simulate the time evolution of hydrodynamic processes over complex geometries. The lack of continuity created confusion driving specifiers to rely on the insurance industry, and in particular, Factory Mutual Research Corp. Wind speed affects weather forecasting, aircraft and maritime operations, construction projects, growth and metabolism rate of many plant species, and countless other implications. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather. It will display the calculated wind pressure profile graphically on plan and elevation. For this example, since the wind pressure on the windward side is parabolic in nature, we can simplify this load by assuming that a uniform pressure is applied on walls between floor levels. Wind Speed in miles per hour mdi-help Wind direction in degrees mdi-help Altitude above sea level in feet mdi-help Atmospheric Pressure in. Unlike other wind calculators on the market, the OMG Wind Calculator provides comprehensive data for each of the various zones on the roof, including pressures for the perimeter, corners, and field of the roof, as well as horizontal wall pressure and the calculated vertical and horizontal design pressures. The definitions of each term are in the following section. Door openings, porches and any other additional structures will increase the total wind load. 57E-6N/m 2 or 4. voluntary national standards and is the U. Zone 5 Coeff. The Basic Design Wind Speed, V (mph), corresponds to a 3-second gust speed at 33' above ground in Exposure Category "C" and is associated with an annual probability of 0. Why not use water instead of. Unlike other wind calculators on the market, the OMG Wind Calculator provides comprehensive data for each of the various zones on the roof, including pressures for the perimeter, corners, and field of the roof, as well as horizontal wall pressure and the calculated vertical and horizontal design pressures. Since wind is air in motion the resulting wind pressures are related to its kinetic energy and can be determined by the following expression: q = γ ( V 2 / 2 g ) where: q = Wind pressure in lb/ft 2 or N/m 2 (pascal). 9 ― mmmm ssss effective wind speed for building heights larger that the width some reduction in wind loads may be obtained by dividing the building into a number of parts - in our. In many cases, the specifier will include in the specification the field, perimeter and corner pressures eliminating the need to complete the calculations. 2 kg/m 3 and wind speed 37 m/s can be calculated as p d = 1/2 (1. 57E-6N/m 2 or 4. We received a request from Martin H. 2 is a good average value at sea level (air density calculator in German: Luftdichte ). A central rotating shaft connects the major components of the drivetrain. Sight Height: The vertical distance between the centerline of the bore and the centerline of your scope. Design pressure thus serves to “localize” a design for the wind loading expected at the installa - tion site, based on maximum expected wind speeds per the wind speed contour map in ASCE-7. The calculator does not check for unrealistic heights or pressures, such as pressure below that of a complete vacuum. Wind-load calculations refer to the both negative and possitive pressures that structural engineers will calculate for us in order to cost-efficiently design a glazing solution for a specific property or structure. This means that wave model results are accurate and general but also expensive in terms of time and computational power. Refer to your local jurisdictions to determine which map and wind speed to use. 32Pa, the overall change in static pressure will be -4. 2 is used for determining the pressure on single or upper storey elevations where the wind direction is at 90 o to a ridge and for wind speeds N1, N2, N3 & N4. NOTE: Table 8. An example of these wind pressure increases created by the increase in roof pressure coefficients is illustrated in Table 1. The qualitative behavior that is usually labeled with the term "Bernoulli effect" is the lowering of fluid pressure in regions where the flow velocity is increased. First a disclaimer: I am not a mathematician. The Pressure screen will equal the Baro screen when the REF ALT on the Baro sub-menu is equal to zero (0). Wind Load modelling in Ansys. Wind pressure is deployed on the "windward" and "leeward" sides of the building as shown in Fig. Distance or 3 ft width. Drawing of the sample tower with combined external pressure, wind and seismic loads Compress This vessel is calculated using the Compress pressure vessel code program by Codeware Inc. Areas subject to high winds or frequent hurricanes, such as south Florida, typically have high design pressure requirements. The calculation only makes sense at low temperatures. The basic wind velocity is given as v b = v b,0 ⋅c dir ⋅c season where the fundamental value of basic wind velocity v b,0 is defined in EN1991-1-4 §4. When determining wind pressure, an important factor that needs to be considered is the direction of the wind. However the term C D refers to. z = velocity pressure evaluated at any height z • q h = velocity pressure evaluated at the mean roof height, h • K z = velocity pressure exposure coefficient defined in Section 30. They can happen to anyone, but usually affect people confined to bed or who sit in a chair or wheelchair for long periods of time. The American National Standards Institute is a nonprofit, privately funded membership organization that coordinates the development of U. The amount of pressure exerted by wind on an object depends on the wind's speed and density, and the object's shape. The design wind velocity V z is calculated by: V z =k 1. altitude calculator determines the atmospheric pressure, air density, temperature and the speed of sound for a given altitude and a temperature offset using the International Standard Atmosphere (ISA) and the US Standard Atmosphere 1976 (USSA) models, which are essentially the same in the interval of 0–86 km. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure. 75 hours) to travel 1,650 miles. v) However, mainly at low temperatures and high wind speed, this formula does not give very reliable results. To determine a tested window's design pressure rating, the test pressure must reach 1. 5 "Edge Securement for Low Slope Roof. Contents Objectives Important Definitions Major Changes in ASCE 7-10 from ASCE 7-05 Wind Load Calculation Procedure Wind Load Calculation as per IBC-2012 and ASCE 7- 10 and Load Combinations Conclusion Wind Loads for Petrochemical Facilities Q&A 2. 00256 x V 2, where V is the speed of the wind in miles per hour (mph). The table below gives a summary of typical wind pressures for various wind regions, shielding and terrain scenarios for low set buildings with an average roof height of 5m or less. Simplified procedure tablets wind pressures for exposure B at 30 ft in Figure 6-2 of ASCE 7-02. So with ventilation inlets and outlets in the right place, nature will push fresh air into a building and suck spent air out of the building. Wind Turbine Noise Calculator "is a simple model which assumes spherical spreading from a point source either in free space (spherical) or over a reflective plane (hemi-spherical). 00 Internal Pressure Coefficient, GCpi, Figure 6-5 The internal pressure coefficients are given in Figure 6-5 (Eq. The Azerite helm, on the other hand, provides access to a unique trait, Person-Computer Interface. On page 303, there seems to be two cases: A and B, each case shows the difference sections that experience wind pressure (sections A-H). ASCE 7-05 Wind Pressure Calculation Tutorial Engineering Express. Calculation of Wind Pressure: ASCE 7-10 and ICC-ES AC 428 • Determine design wind speed and calculate design wind pressures using ASCE 7-10 • ICC Evaluation Services Acceptance Criteria AC 428: Acceptance Criteria for Modular Framing Systems Used To Support Photovoltaic (PV) Panels • AC 428 is required to obtain an ICC-ES. This icon serves as a link to download the eSSENTIAL Accessibility assistive technology app for individuals with physical disabilities. by SL Date 08/05/2015 Chk'd by IT Date 08/05/2015 App'd by Date Terrain category Sea Displacement height (sheltering effect excluded) Hd = 0mm The velocity pressure for the windward face of the building with a 0 degree wind is to be considered as 3 parts as. You can calculate the dew point in three simple steps: Select the temperature unit between Fahrenheit (°F), Celsius (°C), or Kelvin (K). Honolulu is a city at sea level. Anyone who has put their hand out the window of a moving car has experienced the force applied by moving air. 9 °F: Atmospheric Pressure. In my case the uplift pressure was about 60% of the horiztonal pressure. 3 mb the last 3 hours Middle Circle (filled in w/ mostly black): Cloud cover. A wind meter like the Kestrel 3000 will tell you all you need to know about the speed of the wind, the temperature, even humidity and heat stress information. Wind Load: The IBC -2012 and ASCE 7 -10 Provisions Mithun Pal Civil/Structural Engineer 1 2. Did the equation do a good job of predicting wind speed? 7: Do you think the trendline helps to clarify the relationship between air pressure and wind speed for this hurricane? Tell why or why not. Barton Chart Recorders are available for both 8" and 12" charts and in a variety of sensor and mounting configurations. Wind speed affects weather forecasting, aircraft and maritime operations, construction projects, growth and metabolism rate of many plant species, and countless other implications. Pressure - Temperature Ratings (psig) Class - 150# Pressure Class # Service Temp (°F) Carbon Steel: Cr - Mo SS 304: SS 316 SS 304L: SS 316L SS 321:. coriolis_parameter (latitude) Calculate the coriolis parameter at each point. To use this page, you need to provide the calculator with three parameters: air temperature, air pressure, and dew point. Information: "-force" is added to distinguish units of force from units of mass. Example: Calculate Pole foundation size and Wind pressure on Pole for following Details. Does anyone know how to calculate how much force /pressure from wind at different speeds on a flat surface. The Pitot-pressure, as measured for example with a Pitot. 92 inches or 760 millimeters. VERY EXTENSIVE. Define barometric pressure. wind pressure, but not basic wind speed. First, you will need to supply a few parameters. A windturbine is composed of rotor often fitted with several blades. NOTES: 1 The net horizontal drag of ±39 PSF to be used in calculating Anchorage for Lateral and Vertical Stability and for the design of Main Wind Force Resisting Systems is based on a distribution of wind pressures of + 0. Field measurements have been collected on more than a dozen buildings in several different countries. where the point e is far upstream and point 0 is at the stagnation point. (All Calculators Updated per Latest ASCE Guidelines). Wind Loading Calculator Tool Input. - [email protected] Station pressure is routinely measured at surface weather stations (along with temperature, dew point, wind, etc. This tutorial explains the use of the "ASCE 7-10 Components & Cladding Wind Pressure Calculator" located at http://www. Wind (kts) is the wind speed in knots, Wind (mph) is the wind speed in miles per hour, Wind (km/h) is the wind speed in kilometers per hour, Wind (m/s) is the wind speed in meters per second. Wind Speed: The wind speed between the muzzle and the target. 6-1 and the basic wind speed, V is according to Figure 26. 201 in H 2O in a wind tunnel. If you multiply that result by 1. It starting getting a lot of hits, so I decided to go ahead and soup it up as an entirely interactive kiteboarding calculator, modeled after my windsurfing calculator spreadsheet. In other words, a 30 DP window would have to withstand 45 pounds of pressure per square foot. The default value at 1013. The new roof pressure coefficients are based on data from recent wind tunnel tests and then correlated with the results from full-scale tests performed at Texas Tech University. According to the latest wind design equations for your fence the wind speed would have to be nearly 136 miles per hour for a 3-second gust to generate 30 psf. mass, wind, from areas of higher to areas of lower pressure Horizontal Pressure Gradients – Typically only small gradients exist across large spatial scales (1mb/100km) – Smaller scale weather features, such as hurricanes and tornadoes, display larger pressure gradients across small areas (1mb/6km) Vertical Pressure Gradients. Everest, pressure drops to 265 millibars. Turning to another measure of generation performance, capacity credit, this is the amount of wind capacity that can be relied upon statistically, say over a year. Foundation Loads Summary Break down the loads for the specified vessel operating conditions including weight, wind, seismic, and vortex shedding. From Figure 30. Black line, extending from circle: Wind barb. 00 Refer to section 26. The difference in air pressure across the two sides of the blade creates both lift and drag. 00256) x (Wind Speed in mph)^2 0. In meteorology the Coriolis force can very seldom be ignored. An example of this would be the outside temperature dropping from 90 degrees to 60 degrees, which means your road tire pressure would drop from 100 psi to 94 psi. Based on wind tunnel tests with rigid models, wind pressure distributions on gable roof buildings with different aspect ratios were measured simultaneously. Due to the fact that weather conditions affect pressure and altitude calculations, the pressure and temperature at sea level must be known. to compute the former whereas two methods namely Analytical Procedures and Wind Tunnel Procedure are employed to calculate wind loads on components and cladding. Design Pressure Charts Briscoe Shutters proudly displays the following charts for the Design Pressure for Openings, 120 mph - 183. vmax - calculate maximum wind speed from pressure deficit¶ CreationDate: 2006-10-30 Description: Calculate Vmax from pressure difference and vice versa. This part of the calculator consists of a rotatable semi-transparent wheel with a hole in the middle, and a slide on which a grid is printed, that moves up and down underneath the wheel. Conversion Calculator. Calculate the water vapor pressure from the values of temperature or dewpoint. 57 μPa Flux density from NOVA experiment laser beam is about 1E18W/m 2 Radiation Pressure on target is 1E18/c = 3. There are two ways to look at pressure: (1) the small scale action of individual air molecules or (2) the large scale action of a large number of. ) to Velocity (FPM) CALCULATIONS The Pitot tube is the primary standard used to calibrate all other air-flow measuring devices. engineeringexpress. Mean roof height is calculated by averaging the eave and ridge heights, and is used as part of design pressure calculations in both ASCE7 and the International Building Code. 00256 x 70 2 = 12. References All fluid mechanics textbooks discuss static pressure. The height above grade level of the midpoint of the roof. 304 * 100 = 230. The design wind velocity V z is calculated by: V z =k 1. Once the wind speed has been calculated, the user can provide additional information regarding the building (such as building height, type and cladding) to get the wind pressure (wind load) based on ASCE 7-10, AS 1170 and EN 1991 provisions. Note: a pitched A pitched roof has some slope or steepness. Wind pressure is the physical principle behind the pressure tube (Pitot) or pressure-plate anemometer. 2 includes Ps30 for basic wind speed from 85 to 170 mph and roof angle from 0 t 0 45 degree. A central rotating shaft connects the major components of the drivetrain. This version is usable for browsers without Javascript also. In the last case LogiKal ® defines the wind zone automatically. All of the potential load cases required to fully design an actual structure may not be provided by this calculator. A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades, which work like an airplane wing or helicopter rotor blade. In many cases, the specifier will include in the specification the field, perimeter and corner pressures eliminating the need to complete the calculations. If the force is 1 kgf and the area 1 cm2, then the pressure in bar would equal 1. Our Fencing Materials Calculator generates a materials list for you, and tells you how much you will need for your project. When a paper is released in front of an electric fan, it gets blown away by the wind and the force that blows the paper is the wind. Jin-Yi Yu Wind is moving air. 5 ! a v(z) 2 C D d(z) (2. Design pressure is the anchor from which the key attrib -. Calculate wind load pressures for walls and anything on them such as shutters, windows and doors. The wheel on the back of the calculator is used for calculating the effects of wind on cruise flight. Pressure drop calculator is not applicable if the flowing fluid contains solid particles or if the flowing fluid is the mixture of liquid and gas, i. 3‐1 evaluated at any height z (only used for Part 3, h> 60' windward pressures. Wind Resistance Coefficient (See BS7121 Page 78) Wind Pressure on Load = Resistance Coefficiency Check Wind Speed on Load Charts (Most Cranes have a Maximum Wind Speed of 9. Pressure drop calculator is not applicable if the flowing fluid contains solid particles or if the flowing fluid is the mixture of liquid and gas, i. Tubular Street Light Pole (430V) height is 11 Meter which is in made with three different size of Tubular Pipe. F w = wind force (N) A = surface area (m 2) p d = dynamic pressure (Pa) ρ = density of air (kg/m 3) v = wind speed (m/s) Note - in practice wind force acting on a object creates more complex forces due to drag and other effects. Tools with 3" and smaller ports require use of a shop vacuum that generates at least 60" of pressure to force the air collection needed, plus often a movable hood and downdraft table. The SkyCiv Wind Load module is completely integrated with SkyCiv Structural 3D, so you can instantly apply your design pressures to your structure. The wind chill index is the temperature your body feels when the air temperature is combined with the wind speed. How To Calculate Flow Area. Just select the height, wind speed, estimated post size, mesh configuration and a few other items and the proper spacing for the post selected will be calculated for you. The wind action on the structure (forces and pressures) can be derived from the peak velocity pressure. ConvertUnits. Honolulu is a city at sea level. Low-pressure systems generally produce high winds, warmer air, and atmospheric lift— ideal ingredients for a tropical storm. ASCE 7-10 calculations are based on 700-year return period "three second gust" wind speeds corresponding to an ap-proximate 7% probability of exceedence in 50 years, and use combined gust and pressure coefficients to translate these wind speeds into peak design pressures on the struc - ture. The velocity pressure, qz evaluated at height z is calculated by the following equation: (2) 22 22 0. Wind loads on free-standing canopy roofs have been studied in a wind tunnel. 5 to 15 psig respectively (Kohan, 1987). The SI unit for pressure is the pascal (Pa) and is equal to one newton per square meter (N/m 2 or kg/m. However the term C D refers to. Wind Load Calculator Excel Spreadsheet ASCE705W ASCE 7-05 Written for analysis of air load for code and structures for Spreadsheets program written in MS-Excel. Volume of a sphere The volume formula for a sphere is 4/3 x π x (diameter / 2) 3 , where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4/3 x π x radius 3. Negative wind pressure or "leeward" pressure, is generated while winds blow away from the surface in question. where: V 1 = Velocity at height Z 1; V 2 = Velocity at. The wind in the picture of the blade above that has to travel around the longer, curved side, creates a lower pressure pocket while the wind below remains the same pressure, thus becoming a higher pressure than the wind above. The second calculation method of DIN 1055-4:2005-03 is the calculation of the height depending gust velocity pressure. First, you will need to supply a few parameters. Free help from wikiHow. 5 times the design pressure for 10 seconds without the window suffering permanent damage. Several different industrial and scientific applications exist for this term, but most have to do with air pressure rather than water pressure. Outline • Introduction • AS1170. This calculator determines the size of each tributary area of your deck. In many situations in aerodynamics and hydrodynamics, the pressure coefficient at a point near a body is independent of. I'm not after an exact answer so assumptions on some factors wouldn't matter. The factors that influence the ideal tire pressure are: your weight, the bikes weight, tire size, weight distribution, and rider preferences. 02 of being equalled or exceeded (50-year mean recurrence interval). The wind pressure acting on a building face is the product of the dynamic pressure (0. P = q G C p – q i (GC pi) (lb/ft 2) (N/m 2) (27. Denali, also known as Mount McKinley, is the highest peak in North America. Box 608 Wheatland, PA 16161 800. Pressure is the force per unit area applied to any object in a direction perpendicular to the surface. Free Online Wind Load Calculator | SkyCiv. Square the wind speed. Note: Beaufort cannot be entered because it would result in a range of numbers. The result is calculated based on your input. It would be more reasonable to assume 100 mph, which would result in 16 psf wind pressure and therefore solving your problem. 6-1, pg 304). Enter your wind speed measurement in any column at the appropriate height, e. The directional and season factors are generally c dir = 1. 6 yd Chart Range: 100 yd Maximum Range: 2118 yd Step Size: 20 yd: Corrected For Atmosphere Adjusted BC: 0. Its purpose is to provide quick and easy access to wind resource data globally. P = Wind pressure (lb/ft2) = Ce Cq Qs. I've used ASCE-7-05 section 6. ASCE 7-05 Wind Pressure Calculator (USES FLASH) Calculators , Glazing - Doors - Shutters , Legacy-Archived , Wind Pressures By admin March 30, 2012. Low-pressure systems generally produce high winds, warmer air, and atmospheric lift— ideal ingredients for a tropical storm. I'm not after an exact answer so assumptions on some factors wouldn't matter. 5) (c) (wind speed squared), where c is a constant specific to the structure. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. Check our air pressure at altitude calculator to find the atmospheric pressure at any altitude and temperature! hydrostatic pressure - analogous to the aerostatic pressure, but in this case, exerted by liquids. 0 and c season = 1. These wind speed maps are based on the historical weather data and provide the maximum expected 3 second wind gust speed. Hunter Industries is a manufacturer of a full line of irrigation products from controllers, rotors, rotary sprinklers, spray head sprinklers, nozzles, valves, drip irrigation, micro and more. 2 vs AS4055 • Determining Wind Loads • Calculation Strategy • Wind Speed • Internal Pressures • External Pressures • Final Wind Load • Example Wind Calculations • Conclusion & Questions 1122 July 2019 ClearCalcs. Height and pressure can be entered as negative numbers. 75 hours) to travel 1,650 miles. air density (kg/m 3) wind speed (m/s) area (m 2). Online design wind pressure calculator. 4m metal sheet suspended some distance above ground level, if I have a gust of wind at 8m/s (directly perpendicular to the sheet), what is the average pressure across the face of sheet?. The pressure distributions can readily be expressed independent of wind speed by dividing the wind-induced pressures by the "stagnation pressure", ½ v 2, where is the air density and v is the wind speed. If the flowing fluid is gas but not a perfect (ideal) gas, i. Conversion Calculator. As can be seen in … Continue reading "Open Front Structure Wind Pressure Design". WIND PRESSURE COEFFICIENT (C) P = Design Wind Pressure/(kg/m2) Wind Pressure Coefficient V= Wind Velocity/(m/sec) For various shapes, heights and structures of building wall surfaces, the wind pressure exerted on the various surface differ. Prediction for air pressure over United Kingdom and Europe. The total wind pressure is the sum of these. Travelling against the wind, an airplane takes 3 hours to travel 1,650 miles. To use this page, you need to provide the calculator with three parameters: air temperature, air pressure, and dew point. For example, if you ride your bike at 20 miles per hour and your frontal area is 5 square feet, then the pressure you experience is (20^2) * 0. It's the same force you feel on your skin whether you're on the floor, under the bed or in the shower. 2 and designed according to the minimum requirements of ASCE 7-10. The rotor is fixed at a nacelle installed on the top of a vertical mast. 8 M/P/S) Example Only Mobile cranes are designed with a standard drag factor of 1. Calculating Wind Pressure/Sqft On A Sail and other windsurfing discussion in the Seabreeze general forums, page 1. Free help from wikiHow. This later velocity of the air is associated with the dynamic pressure, q(t). A sampling of references follows. Physics Calculators The well-known American author, Bill Bryson, once said: “Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness. Severe Weather in the Southern States; Dangerous Heat in the West. (Earthquake loads also differ). The altitude at a given air pressure can be calculated using Equation 1 for an altitude up to 11 km (36,090 feet). air density (kg/m 3) wind speed (m/s) area (m 2). EXAMPLE CALCULATIONS F (A simplified alternative is to use ASCE 7, Section 6. of the wind pressure and its distribution over the building envelope. The calculations are based on a number of factors including wind speed, location of building, and size and location of openings. Negative wind pressure or "leeward" pressure, is generated while winds blow away from the surface in question. It can automatically calculate all parameters including topographic factor and gust effect factor for flexible structures. vmax - calculate maximum wind speed from pressure deficit¶ CreationDate: 2006-10-30 Description: Calculate Vmax from pressure difference and vice versa. ASCE 7-10 design pressure calculator. WIND PRESSURE COEFFICIENT (C) P = Design Wind Pressure/(kg/m2) Wind Pressure Coefficient V= Wind Velocity/(m/sec) For various shapes, heights and structures of building wall surfaces, the wind pressure exerted on the various surface differ. Design Pressure (DP) calculations are required to obtain a permit. We always effort to show a picture with HD resolution or at least with perfect images. 00 Internal Pressure Coefficient, GCpi, Figure 6-5 The internal pressure coefficients are given in Figure 6-5 (Eq. The wind action on the structure (forces and pressures) can be derived from the peak velocity pressure. The key to prevention comes early in. For example, an air temperature of 83°F with a relative humidity of 70% would result in an estimated 88°F perceived temperature. The window deflects due to the pressure and the amount of deflection is measured. , ITS-90 Formulations for Vapor Pressure, Frost point Temperature, Dew point Temperature, and Enhancement Factors in the range -100 °C to +100 °C, Papers and Abstracts of the Third International Symposium on Humidity and Moisture, Vol. The wind pressure must be adjusted for mean roof height and exposure category. 2 is used for determining the pressure on single or upper storey elevations where the wind direction is at 90 o to a ridge and for wind speeds N1, N2, N3 & N4. 6 hours, and rewrite the two equations in algebraic form. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. 3 Giga Pascals!!. 1 Council Avenue P. On the return trip, the airplane travels with the wind, and takes 2 hours 45 minutes (or 2. If the pressure drops, the storm is gaining strength and wind speeds. The result is your pressure in pounds per square feet. Wind Speed Calculator Do not operate the form until this page and its programme have loaded completely. Air density, which is the mass of air per space, depends on air pressure, temperature and humidity. To convert from pascals to dynes per centimeter squared. Lecture 4: Pressure and Wind Pressure, Measurement, Distribution Forces Affect Wind Geostrophic Balance Winds in Upper Atmosphere Near-Surface Winds Hydrostatic Balance (why the sky isn't falling!) Thermal Wind Balance. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. Typical Applications where Pressure and Altitude are Used. maximum wind speed on various structures and the human body. The difference in air pressure across the two sides of the blade creates both lift and drag. In the exponential, the two terms have the units of energy. 3‐1 evaluated at any height z (only used for Part 3, h> 60’ windward pressures. Welcome to PF! Hi Michael! Welcome to PF! The pressure difference (on either side of the window) is 1/2 ρv 2, where the density ρ of dry air at sea level is about 1. NO Preview for this auction. The purpose of ventilation is to flush the indoor space out with outdoor air. The Seattle-based company also said it’s on track to have 100% of its energy use come from solar panels, wind turbines and other renewable energy by 2025, five years earlier than it had planned. 2 kg/m 3 and wind speed 37 m/s can be calculated as p d = 1/2 (1. 00256 (lb/ft) 0. The FITs scheme closed to new applications on 31 March 2019, but details about the scheme are still available here You may now be able to claim Smart Export Guarantee (SEG) payments instead for any surplus electricity you export to the grid. Main Wind Force Resisting System — Method 2 PS30 60 ft. In other words, a 30 DP window would have to withstand 45 pounds of pressure per square foot. The smaller the range used, the more similar the Wind Calculator and ANSI/SPRI ES-1 final Design Pressure values will be. mass, wind, from areas of higher to areas of lower pressure Horizontal Pressure Gradients – Typically only small gradients exist across large spatial scales (1mb/100km) – Smaller scale weather features, such as hurricanes and tornadoes, display larger pressure gradients across small areas (1mb/6km) Vertical Pressure Gradients. It is featured as part of our commitment to diversity and. Define barometric pressure. , Wind Energy Explained, Wiley, 2003) Power Law. Height and pressure can be entered as negative numbers. Sometimes static pressure is given as Pascals (Pa). You can find. The pressure coefficient is used in aerodynamics and hydrodynamics. Wind Load: The IBC -2012 and ASCE 7 -10 Provisions Mithun Pal Civil/Structural Engineer 1 2. Wind loads on free-standing canopy roofs have been studied in a wind tunnel. air density (kg/m 3) wind speed (m/s) area (m 2). Calculate the total wind pressure. Wind speed is one of many variables used in calculating design wind pressures that take into account the structure configuration and site. Pressure coefficients. For example, if you ride your bike at 20 miles per hour and your frontal area is 5 square feet, then the pressure you experience is (20^2) * 0. 5) (density of air) (wind speed squared). The following blog will help give programmers a simple formula for average wind direction and speed. Black line, extending from circle: Wind barb. Online design wind pressure calculator. To show wind speeds, the pressure gradient is plotted onto weather maps using isobars mapped between areas of high and low pressure. For Example, Speed of 100 mph gives 26. Design velocity pressure for ASD and LRFD are: ASD: q z10_ASD = (0. The maximum value, qs, say, is given by 5 2 /2( 7) qs = pso pso + po (4) If the blast wave encounters an obstacle perpen-dicular to the direction of propagation, reflection. Did the equation do a good job of predicting wind speed? 7: Do you think the trendline helps to clarify the relationship between air pressure and wind speed for this hurricane? Tell why or why not. Scale: Force Rating: Observable Land Effects: Speed MPH: Effect at sea: 0: Calm: Vertical Smoke: 1: Calm (Glassy) 1: Light Air: Slight smoke drift: 1-3: Calm (Rippled) 2. Use our sample 'Wind Load Calculator. Not like it is hard to google "comics air pressure" and press enter, then images. After giving you the technical information, the calculator also lists the Metal-Era products that meet the requirements of your building!. Atmospheric pressure drops as altitude increases. Wind pressure on sails is really complex, and involves the speed of the sail through the air, the size of the sail, direction of the wind in relation to the sail, etc. Calculate the total wind pressure. Wind Speed in miles per hour mdi-help Wind direction in degrees mdi-help Altitude above sea level in feet mdi-help Atmospheric Pressure in. Manufacturing Standards. Comparing wind load calculations are most complicated. ASD wind pressures for Main Wind-Force Resisting Systems (MWFRS) and Components and Cladding (C&C) are computed. The result is calculated based on your input. There are actually three types of forces exerted by wind on an average structure: uplift load, shear load and lateral load. v) However, mainly at low temperatures and high wind speed, this formula does not give very reliable results. ASCE 7 - 16 v2017 Wind Load Calculators UPDATED for Instant Download. Velocity Pressure of # 2 Entering Branch (inches Water): Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above. Cumulative Static Pressure "wg 3. ASCE 7-2010 wind pressures differ from ASCE 7-05 pressures. The calculator will work out your hydration level based on the information you give about yourself and your daily drinking habits. Here you can make instant conversion from this unit to all other compatible units. Since we know the instantaneous velocity of the bird, we can calculate its speed using Answer each question yes or no. This site provides a description of engineering services offered by 2WH Structural Consulting. What is the speed of the airplane in still air and the speed of the wind? Using the calculator, we click "A" then enter Distance 1650 Time 1 3. altitude calculator determines the atmospheric pressure, air density, temperature and the speed of sound for a given altitude and a temperature offset using the International Standard Atmosphere (ISA) and the US Standard Atmosphere 1976 (USSA) models, which are essentially the same in the interval of 0–86 km. Enter value, select unit and click on calculate. In many situations in aerodynamics and hydrodynamics, the pressure coefficient at a point near a body is independent of. See wind pressure calculation table Kz @ z z = highest opening affecting pressure Kd Wind directionality factor obtained from Table 6-4 1. For example, if you ride your bike at 20 miles per hour and your frontal area is 5 square feet, then the pressure you experience is (20^2) * 0. Wind Load Calculator. Its purpose is to provide quick and easy access to wind resource data globally. In other areas, the flow of wind continues and uninterrupted leading to relatively high speeds making such areas more suited for the development of wind energy (Petersen, 2014). The chart below illustrates DP pressures for different buildings:. , Amsterdam i Printed in The Netherlands WIND LOADS ON CIRCULAR STORAGE BINS, SILOS AND TANKS: I. The pressure is caused by wind blowing on and around the subject property. Positive pressure is force exerted towards the opening of a house. Lift forces and suction forces have not been taken into account and the results should be taken as a guide only. Anyone who has put their hand out the window of a moving car has experienced the force applied by moving air. air density (kg/m 3) wind speed (m/s) area (m 2). The standard atmospheric pressure is 101,325 pascal = 1,013. Since wind is air in motion the resulting wind pressures are related to its kinetic energy and can be determined by the following expression: q = γ ( V 2 / 2 g ) where: q = Wind pressure in lb/ft 2 or N/m 2 (pascal). The Pitot-pressure, as measured for example with a Pitot. To calculate spring force constant enter the inputs and click calculate. Pressure is an expression of force exerted on a surface per unit area. 2 Document Ref: SX016a-EN-EU. 6-1 and the basic wind speed, V is according to Figure 26. Note: This calculator may be used together with the Wind Energy Economics Calculator. water static pressure. The basic wind velocity is given as v b = v b,0 ⋅c dir ⋅c season where the fundamental value of basic wind velocity v b,0 is defined in EN1991-1-4 §4. As can be seen in … Continue reading "Open Front Structure Wind Pressure Design". It takes into effect things like atmospheric conditions, wind, and even allows you to make projections shooting both up and down hill. Wind in the N/S Direction: For this part of the problem we need to determine pressure coefficients for the locations shown in Figure 7. Wind speed affects weather forecasting, aircraft and maritime operations, construction projects, growth and metabolism rate of many plant species, and countless other implications. Alternatively, pressure can be measured in dynes per centimeter squared (dyn/cm 2 or dyn · cm -2). The best tire pressure to use is a subject of much debate. 6 pounds per square foot x 400 square feet = 640 pounds of force on the sail. The Basic Design Wind Speed, V (mph), corresponds to a 3-second gust speed at 33' above ground in Exposure Category "C" and is associated with an annual probability of 0. Three types of roof geometries, i. 5 psig, and, 0. We also carry a complete line of accessories, hardware, and installation parts and kits. 2 mph Exposure B & Exposure C, 30 ft Mean Roof Height Florida Building Code Section 1609. Main Wind Force Resisting System — Method 2 PS30 60 ft. 30 * 30 *. Here is an excel sheet with all averaging examples. Wind loads on free-standing canopy roofs have been studied in a wind tunnel. A number of factors that influence the actual wind load on a real building, include the surrounding terrain, nearby structures, trees, and typical weather patterns for the area. Therefore, the SI wind load unit is Newtons or Pascals. Pressure is represented by the symbol p or P. acoustic pressure - deviation from the average value of atmospheric pressure, occurring during the propagation of an acoustic wave in it. The new roof pressure coefficients are based on data from recent wind tunnel tests and then correlated with the results from full-scale tests performed at Texas Tech University. Parapet Wind Pressure Coefficient (GCpn) is calculated per ASCE 7-16 Section. 3 - Table 4 Ve≔Vs⋅Sb Ve=53. In meteorology the Coriolis force can very seldom be ignored. You may also be interested in our Wind Chill Calculator. calculation of wind loads for low slope roofing. These equations are widely accepted as. 7 inch H 2 O = 1 psi; 1 cm H 2 O = 98. ESS55 Prof. s 2 - prior to 1971 the unit was simply known as N/m2). The Pressure screen will equal the Baro screen when the REF ALT on the Baro sub-menu is equal to zero (0). Local and general external coefficients are given in EC1-1-4 and IS 875-3-1987 whereas BS 6399-2-1997 and MS 1553-2002 don't provide. 'Calculations courtesy of Alex Tomanovich, PE '. 92 inches of mercury. Use the wind pressures to calculate wind loads Note: There is an ASCE 7-2010 code available. ) Zones Figure 28. Disclaimer: This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principals. Characteristics of wind pressure spectra on spherical domes have been investigated based on a series of wind tunnel experiments and a synthetic spectral model is derived for load estimation of. The idea behind this blog is not to teach math it is simply to give the formula to calculate the Average Wind Direction and Average Wind Speed. The technique is called "a depression of 21 kPa. For example, if you ride your bike at 20 miles per hour and your frontal area is 5 square feet, then the pressure you experience is (20^2) * 0. As stated a good range of pressure in car tires is withing 193-234 in kPa (kilopascal) or 28 to 34 psi (pounds per square inch). 4m metal sheet suspended some distance above ground level, if I have a gust of wind at 8m/s (directly perpendicular to the sheet), what is the average pressure across the face of sheet?. First, you will need to supply a few parameters. For results, click Convert or press Enter or Tab. 304 * 100 = 230. ASCE 7-2010 wind pressures differ from ASCE 7-05 pressures. Sound power is the distance independent cause of this, whereas sound pressure is the distance-dependent effect. 5 to 15 psig respectively (Kohan, 1987). Atmospheric pressure drops as altitude increases. The method of Bergman and Calif combines the seismic load with the external pressure to create a new, increased equivalent external pressure for the wind and seismic conditions. Calculator Use. 2 includes Ps30 for basic wind speed from 85 to 170 mph and roof angle from 0 t 0 45 degree. Station pressure is routinely measured at surface weather stations (along with temperature, dew point, wind, etc. 3 Giga Pascals!!. Foundation Loads Summary Break down the loads for the specified vessel operating conditions including weight, wind, seismic, and vortex shedding. Calculate the absolute vorticity of the horizontal wind. You can find. The second calculation method of DIN 1055-4:2005-03 is the calculation of the height depending gust velocity pressure. Physics Calculators The well-known American author, Bill Bryson, once said: “Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness. 00256K z K zt K d V2I Velocity pressure exposure coefficient evaluated at height. In order for a structure to be sound and secure, the foundation, roof, and walls must be strong and wind resistant. Calculate the water vapor pressure from the values of temperature or dewpoint. Building Length (m) For buildings with duopitch or monopitch roofs, this is the length of the side wall. determining design wind pressures and forces, the design wind speeds, Exposure Categories and requirements for wind-borne debris protection are to be as specified in the Florida Building Code, Building and Florida Building Code, Residential (FBCR) as applicable. Choosing which method to use when designing uplift connections for trusses can raise a number of questions for building designers, code officials and. The Pressure screen will equal the Baro screen when the REF ALT on the Baro sub-menu is equal to zero (0). ASCE 7-2010 wind pressures differ from ASCE 7-05 pressures. What design pressure (DP) means to you. 0197162 bar. Journal of Wind Engineering and Industrial Aerodynamics, 31 (1988) 165-188 165 Elsevier Science Publishers B. 7 meter height with 146 mm diameter and…. 6 pounds per square foot x 400 square feet = 640 pounds of force on the sail. Net Positive Pressure Net Negative Pressure Door width in end zone Positive Design Pressure Negative Design Pressure psf Pos. Integrate CHECKWIND into your existing software solutions using the CHECKWIND. Calculate the water vapor pressure from the values of temperature or dewpoint. Calculation of Lateral Pressure on Concrete Formwork ACI 347-04 specify that, concrete lateral pressure is computed as per Equation-1 if fresh concrete slump value is greater than 175 mm and does not placed with normal internal vibration to a depth of 1. 8 or + 24 PSF to the windward wall and −0. For example, if you ride your bike at 20 miles per hour and your frontal area is 5 square feet, then the pressure you experience is (20^2) * 0. So remembering that the pressure drop due to friction/turbulence will be 4. 02 of being equalled or exceeded (50-year mean recurrence interval). The wind zone is either determined directly or by selecting a city. Wind Pressure Type of Pole Total Height of Pole Class of Pole ( If Known). 2 kg/m 3 and wind speed 37 m/s can be calculated as p d = 1/2 (1. Calculation of Wind Loads on Structures according to ASCE 7-10 Permitted Procedures The design wind loads for buildings and other structures, including the Main Wind-Force Resisting System (MWFRS) and component and cladding elements thereof, shall be determined using one of the procedures as specified in the following section. This is sort of how a pitot tube works (or doesn't work, if you are flying Air France), using pressure to compute air speed. Note also that for stack effect, flow rate diminishes as the ventilation proceeds, bringing the temperature difference down. You may also be interested in our Wind Chill Calculator. 2 Minute Read Wind is the movement of air from an area of high pressure to an area of low pressure. Its purpose is to provide quick and easy access to wind resource data globally. The amount of pressure exerted by wind on an object depends on the wind's speed and density, and the object's shape. 5 times the design pressure for 10 seconds without the window suffering permanent damage. Determine the design wind pressure, p or design wind load, F, as applicable, in accordance with ASCE 7 Section 6. Method 2: Analytical procedure. Conditions at 3:00 PM EDT on June 20, 2020: Data: Temperature: 89. Force & Area to Pressure Calculator. The internal and external pressure coefficients are applied to the velocity pressures to yield the design pressure of the component or cladding element. Wheatland has made this very complicated structural design process easy by developing and including within their website an interactive Fence Post Wind Load Calculator. If you multiply that result by 1. 2 is used for determining the pressure on single or upper storey elevations where the wind direction is at 90 o to a ridge and for wind speeds N1, N2, N3 & N4. mass, wind, from areas of higher to areas of lower pressure Horizontal Pressure Gradients – Typically only small gradients exist across large spatial scales (1mb/100km) – Smaller scale weather features, such as hurricanes and tornadoes, display larger pressure gradients across small areas (1mb/6km) Vertical Pressure Gradients. A windturbine is composed of rotor often fitted with several blades. These coefficients are then combined with the gust factor and velocity pressures to obtain the external pressures in each region. See wind pressure calculation table Kz @ z z = highest opening affecting pressure Kd Wind directionality factor obtained from Table 6-4 1. Disclaimer: This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principals. 9 ― mmmm ssss effective wind speed for building heights larger that the width some reduction in wind loads may be obtained by dividing the building into a number of parts - in our. Note: This calculator may be used together with the Wind Energy Economics Calculator. com/asce-7-10-c-c-c. 6 yd Chart Range: 100 yd Maximum Range: 2118 yd Step Size: 20 yd: Corrected For Atmosphere Adjusted BC: 0. Wind Load Vs. NEW! Ability to save up to 20 separate projects. Notes: Figure 6. This tutorial explains the use of the legacy "ASCE 7-05 Components & Cladding Wind Pressure Calculator" located at https:. 30 * 30 *. If you open the economics calculator from this page, they will both be on screen, and this calculator will automatically feed its energy output result into the economics calculator. What is the speed of the airplane in still air and the speed of the wind? Using the calculator, we click "A" then enter Distance 1650 Time 1 3. , if it's pressure, temperature and density are not related according to ideal gas law , this calculator is not. voluntary national standards and is the U. This pressure varies with the velocity of the air (speed and. Wind Turbine Noise Calculator "is a simple model which assumes spherical spreading from a point source either in free space (spherical) or over a reflective plane (hemi-spherical). Conditions at 6:15 AM EDT on June 16, 2020: Data: Temperature: 61. Relative humidity can also be calculated by knowing these two values. The wind pressure must be adjusted for mean roof height and exposure category. ) to Velocity (FPM) CALCULATIONS The Pitot tube is the primary standard used to calibrate all other air-flow measuring devices. Pressure drop formula calculation is published. 70 Kzt Topographic factor obtained from Fig. It would be good to know the force exerted for other speeds too. Conversion Calculator. 5 m high) and the main loading on it is wind I want to model the acting wind pressure but my problem is that when I apply Pressure acting on Area in Ansys. Electrical Conduit/EC&N; Standard Pipe; Fire Sprinkler Pipe; Mechanical Tube. 10 page-97 "Guide to Storage Tanks and Equipment" bob long and bob garner)to calculate Mwr (moment due to wind. Shear, uplift, and overturning loads are calculated for various building components. ounces per square inch to pieze ounces per square inch to kilogram-force/square meter ounces per square inch to yoctobar ounces per square inch to micrometer of mercury ounces per square inch to nanobar ›› Metric conversions and more. Enter your values: Force: Area: Result: Pressure: Newton / Meter 2: Calculate Force. A separate 10″ diameter line provides the “high” pressure required by some of the more powerful pipes in the organ. 1 and given in Table 30. It takes into effect things like atmospheric conditions, wind, and even allows you to make projections shooting both up and down hill. It points to where the wind is coming from.