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OSTP Pressure Distribution <br /> MinnesotaPollution Design Worksheet UNIVERSITY `� .� <br /> ControlAgency OF MINNESOTA •—��.`�- <br /> 12. Calculate the Squore Feet per Perforotion. Recommended vatue is 4-i 1 ft z per perforation. <br /> Does not apply to At-Grades <br /> a. Bed Area = Bed Width (ft) X Bed Len�th (ft) <br /> 10 ft X 63 ft = 530 ftZ <br /> b. Square Foot per Perforation = Bed Areo divided by the Totat Number of Perforotions. <br /> 630 ft2 .- 63 perforations = 10.0 ft2/perfarations <br /> 13. Select Minimum Average Head: 1.0 ft <br /> 14. Select Perforation Dischorge (GPM) based on Table: 0.56 GPM per Perforation <br /> �5• Determine required Flow Rate by multiplying the Tota(Number of Perfs. by the Perforation Discharge. <br /> 63 Perfs X 0.56 GPM per Perforation = 36 GPM <br /> 16. Volume of Liquid Per Foot of Distribution Piping (Toble ll): 0.170 Galtons/ft <br /> 17. Vofume of Distribution Piping = . <br /> _ <br /> Table 11 <br /> _ [Number of Perforated Latera(s X Length of Laterais X {Volume of volume of Liquid in ; <br /> Liquid Per Foot of Distribution Piping] p�Pe <br /> Pipe Liquid <br /> � 3 � X 61 ft X 0.170 gaUft = 31.1 Gatlons Diameter Per Foot <br /> (inches) (Gallons) <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 Galtons 1,5 0.11 O <br /> 2 0.170 <br /> mani o pipe` 3 O.380 <br /> ' 4 0.661 <br /> ,� ___ ------ -__ . _.. <br /> pipe from pump c�eancuci - <br /> �2dA O1115 � <br /> Mam`old pipe <br /> ♦ <br /> I• �s <br /> alternate lacetion <br /> Of i p irOm u �Alterndte lotation <br /> � of plpe kom pump <br /> Pine from um <br /> Comments/Special Design Considerations: <br />