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OSTP Pressure Distribution <br /> UNIVERSITY �'��� � <br /> Minnesota Pollution Design Worksheet <br /> ControlAgency OF MINNESOTA �- 'L\`�- <br /> 12. Ca(culate the Square Feet per Perforotion. Recommended vo(ue is 4-11 ft Z per perforation. � <br /> Does not apply to At-Grades <br /> a. 8ed Area = Bed Width (ft)X Bed Length �ft) <br /> 10 ft X 50 ft = 500 ft2 <br /> b. Square Foot per Perforotion = Bed Area divided by the Tota1 Number of Aerfo�otions. <br /> 5� ftZ - 51 perforations = 9.8 ftZ/perforations <br /> 13. Select Minimum Avervge Head: 1.0 ft <br /> 14. Select Perforation Discharge {GPM) based on Table: 0.56 GPM per Perforation <br /> �5• Determine required Flow Rnte by multiptying the TotQl Number of Perfs. by the Perforotion Discharge. <br /> 51 Perfs X 0.56 GPM per Pertoration = 29 GPM <br /> 16. Volume of Liquid Per Foot of Distribution Piping (Tnbte Il): 0.170 Gallons/ft <br /> 17. Volume oj Distribution Piping = <br /> --� Tabie U ---�- <br /> _ [Number of Perforoted Laterots X Length of Latercrts X (Volume of Volume of Liquid in <br /> Liquid Per Foot of Distribution Piping] pi� <br /> �p� Liquid <br /> C� X 48 ft X 0.170 gaUft = 24.5 Gallons Diameter Per Foot <br /> ' (inches) (Gallons) <br /> 18. Minimum Detivered Votume= Votume of Distnbutian Piping X 4 � o.o.ts <br /> 24.5 gals X 4 = 97.9 Gatton5 �•25 0.078 <br /> 1.5 0.110 <br /> 2 0.170 <br /> mam p�pe` 3 0.380 <br /> � <br /> � 4 0.661 <br /> � _ . . _ _ -- <br /> P��P�mP -tkanoua - - -- - <br /> leaft outS Marotok p�Pe. <br /> • <br /> f �. <br /> � <br /> alternate lo;ation .-- �- <br /> ot � irqn `����� <br /> d PP�►rom pw�p <br /> from <br /> Comments/Special Design Considerations: <br />