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OSTP Pressure D�stribution <br /> MinnesotaPolluti�n Desi n Worksheet uN�vERs�TY <br /> � <br /> �Gontrol A � OF MINNES4TA ����``�,,,�" <br /> 12. Calculate the Squore Feet per Perforatron. Recommended value is 4-11 ft2 per perforrrtion. <br /> Does not appty to At-Grades <br /> a. Bed Area = Bed Width (ft)X Bed Length (ft) <br /> 10 ft X 63 ft = 630 ft2 <br /> b. Square Foot per Perforation = Bed AreQ divided by the Tota(Number of Perforat�ons. <br /> 630 ftZ = b3 perforations - 10.0 ft2/pertorations <br /> 13. Select Minimum Average Head: 1.0 ft <br /> 14. Select Perforation Discharge (GPM) based on Table: 0.56 GPM per Perforation <br /> 15. DeteRnine required Flow Rate by muttiplying the Tota!Number of Perfs. by the Perforot3on Discharge. <br /> 63 Perts X 0.56 GPM per Perforation = 36 GPM <br /> 16. Volume of Liquid Per Foot of Dlstribution Piprng(Toble!1}: 0.170 Gallons/ft <br /> 17. Volume of Distributian Pip�ng = <br /> Tabfa ti <br /> _ [Number of Perforated Laterals X Length of Laterats X (Volume of Volum�of Liquid in <br /> Liquid Per Foot of Distribution Piping] �Pe <br /> 't.--. Pipe Llquid <br /> �� X 61 ft X 0.170 gal/ft = 31.1 Gallons Diamrter Per Foo+k <br /> (i�ches) (Gatlons) <br /> 18. Minimum Delivered Volume=Volume of Distribution Piping X 4 7 o.b4s <br /> 1.25 0.078 <br /> 31.1 gals X 4 = 124.4 Gallons 1.5 0.110 <br /> 2 0.170 <br /> man � 3 0.380 <br /> � 4 �.661 <br /> i <br /> � ��ft�W� __t�e„ams - -- - - - <br /> , <br /> .' <br /> . <br /> i Menifdd pipl. <br /> � � � <br /> ♦ i � <br /> � s♦ � � <br /> � t <br /> aKematelocation -�-' - <br /> of ' ftom � `aumaa bcadan <br /> d pipe fiaa�pwnp <br /> . fran <br /> Comments/Special Design Considerations: <br /> :� <br />