Laserfiche WebLink
OSTP Pressure Distribution <br /> Min ate PoNudon Design Worksheet UNIVERSITY <br /> Control OF MINNESOTA <br /> 12. Calculate the Square Feet per Perforation. Recommended value is 4-11 ft 2 per perforation. <br /> Does not apply to At-Grades <br /> a. Bed Area = Bed Width (ft)X Bed Length (ft) <br /> 10 ft X 50 ft = 500 ft2 <br /> b. Square foot per Perforation = Bed Area divided by the Total Number of Perforations. <br /> 2 <br /> 500 ft 1 51 perforations = 9.8 ft2/perforations <br /> 13. Select Minimum Average Head: 1.0 ft <br /> 14. Select Perforation Discharge (GPM) based on Table: 0.74 GPM per Perforation <br /> 15. Determine required Flow Rate by multiplying the Total Number of Perfs. by the Perforation Discharge. <br /> 51 Perfs X 0.74 GPM per Perforation - 38 GPM <br /> 16. Volume of Liquid Per Foot of Distribution Piping(Table fl): 0.170 Gallons/ft <br /> 17. Volume of Distribution Piping = <br /> = [Number of Perforated Laterals X LenTAW*11 <br /> gth of Laterals X (Volume of Vbiume of Ltquir in <br /> Liquid Per Foot of Distribution Piping) pipe <br /> � Pipe Ugaid <br /> 3 X -�ft X 0.170 gal/ft = 24.5 Gallons Diener Pier Foot <br /> Onchn) (Gallons) <br /> 18. Minimum Delivered Volume =Volume of Distribution Piping X 4 1 0.045 <br /> 24.5 gals X 4 = 97.9 Gallons 1.25 0.078 <br /> 1.5 0.110 <br /> 2 0.170 <br /> 3 0.380 <br /> � 4 0.661 <br /> outs Minibld pp.. <br /> •- ---bnbon --- �� <br /> Of <br /> • km wAd AlOnMbcabw <br /> Comments/Special Design Considerations: <br />