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OSTP Pressure Distribution � <br /> MinnesoW Pollutlon Desi�n Worksheet uNI�ERs`TY <br /> :;��. <br /> ControlA enc OF MINNESOTA '1..''�,�*." <br /> 12. Calculate the Square Feet per Perforotion. Recommended value is 4-11 ft 2 per perforation. <br /> Does not apply to At-Grodes <br /> a. Bed Areo = Bed Width (ft) X Bed Length (ft) <br /> 10 ft X 63 ft = 630 ft2 <br /> b. Squore Foot per Perforotion = Bed Areo divided by the Torat Number of Perfora[ions. <br /> 630 ftz - 63 perforations = 10.0 ft2/perforations <br /> 13. Select Minimum Averoge Heod: 1.0 ft <br /> 14. Select Perforation Dischorge (GPM) based on Table: 0.56 GPM per Perforation <br /> �5• Determine required Flow Rote by muttiplying the TotQ! Number of Perfs. by the Perjoration Discharge. <br /> 63 Perfs X 0.56 GPM per Perforation = 36 GPM <br /> 16. Vo(ume of Liquid Per Foot of Distribution Piping (Tabte il): 0.170 Gattons/ft <br /> �7, Volume of Distribution Piping = <br /> __ �._._ __ ____ ----- <br /> Table 11 <br /> _ [Number of PerforQted Laterots X Length of Laterets X (Votume of Volume of Liquid in <br /> Liquid Per Foot of Distribution Piping] �_ �P� <br /> Pipr Liquid� <br /> � X 61 ft X 0.170 gaVft = 31.1 Gattons �ameter Per Foot <br /> (inches) (Galbns) <br /> 18. Minimum Delivered Volume = Volume of Distribution Piping X 4 � 0.045 <br /> 1.25 0.078 <br /> 31.1 gals X 4 = 124.4 Galtons ' t.5 0.110 <br /> 2 0.170 <br /> man p�pe` 3 O.380 <br /> i 4 0.661 <br /> � .------- ___._____.�_� <br /> � __ cleanoots -- � - .. ._ __ _ <br /> p�Pe from WmP <br /> Mamidd Pw�. <br /> Ila11 O111S , , <br /> � ,• <br /> � _ _ <br /> afternate taation �- <br /> 01 from 'a�urnate�aation <br /> �PP��P�+mP <br /> Po from m <br /> Comments/Special Design Considerations: <br />