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� OSTP Pressure Distribution <br /> ,�a .. <br /> Minnesota Poltution ' UNIVERSITY �` � ��� Y �,� <br /> Control Agency <br /> Des�gn Worksheet OF IVIINNESOTA �������-"�`�.�; <br /> 12. Calculate the Squore�eet per Perforotion. Recommended va(ue is 4-11 ft 2 per perforation. <br /> Does not appl y to At-Grades <br /> a. Bed Areo = Bed Width (ft)X Bed Length (ft) <br /> 10 ft X 63 ft = 630 ftz <br /> b. Square Foot per Perforrrtion =Bed Area divided by the Totol Nt�mber of QerforQtions. <br /> 630 ft2 .- 63 perforations = 10.0 ftz/perforations <br /> 13. Select Minimum Average Head: 1.0 ft <br /> 14. Select Perforation Discharge (GPM) based on Table: 0.56 GPM per Perforation <br /> �5• Determine required Flow Rote by multiplying the Toto(Num6er of Perfs. by the Perforotion Discharge. <br /> 63 Perfs X 0.56 GPM per Perforation = 36 GPM <br /> 16. Volume of Liquid Per Foot of Distribution Piping(Tobte 1i): 0.170 Gallons/ft <br /> 17, Volume of Distribution Piping = f Table ii <br /> _ [Number of Perforttted Loterats X Length of�vtera(s X (Votume of � voiume of�iquid in <br /> Liquid Per Foot of Distribution Pipi�g] Pipe <br /> Pipe Liquid <br /> �� X 61 ft X 0.170 gaUft = 31.1 Galions Diameter Per Foot� <br /> (inches) (Gailons) <br /> 18. Minimum Detivered Volume=Volume of Distribution Piping X 4 1 0.045 <br /> 1.25 0.078 <br /> 31.1 gals X 4 = 124.4 Gatlons 1.5 0.110 <br /> 2 0.170 <br /> marn o p�pe` 3 O.3$O � <br /> � 4 O_661 <br /> � --- <br /> � ,_tlearrouts "----- ------ <br /> pipe from pump '�- <br /> i Manifold pipe� <br /> ean outs � <br /> a ' <br /> ' � <br /> • �. ; i <br /> � <br /> altemaie location -'' <br /> of i e ftom m `alt�nate i«auon <br /> of pipe from pump <br /> from <br /> Comments/Special Design Considerations: <br /> _ __ _ ___ ___ ___ __— _ _ __ <br />