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• OSTP Pressure Distribution <br /> Minnesota Pollution UNIVE�2S[TY � _ <br /> Design Worksheet OF MINNESOTA Y.�```` <br /> Cor�tral Agency <br /> __---- __._-- __.= <br /> 12. Calculate the Square Feet per Perforotion. Recommended vafue is 4-f 1 jt 1 per perforotion. pertorat3on Diuharge(GPM) <br /> Does not appty to At-Grades <br /> a, Bed Area = Bed Width(ft)X Sed Length(ft) PerlonHon Di�metrr <br /> Head(ft) , ; , � <br /> 5 ft X 125 ft = 625 ftz <br /> �e �is ��: �� <br /> 7,0' 0.16 0.41 0.56 0.74 <br /> b. Squore Foot per Perforation =8ed Areo divided by the Total fJumber of Perforations (Line 9}. �5 0.22 0.51 � 0.69 0.4 <br /> 625 ft= .- 50 perforations = 12.5 ftZlperforations ��4 0.2b o.59 o.eo _1.04 <br /> 2.5 0.29 O.b5 0.84 � L17 <br /> 13. Setect Minimum Average Head: 1.0 ft 3.0 0.32 0.72 0,48 L2a <br /> 4.0 0.37 D.83 t.13 1.47 <br /> 14. Setect Perforation Discharge (GPM)based on Table: 0.56 GPM per Perforation 5.0` 0.47 0.43 1.26 1.65 <br /> �F�� Dweltin�s with 311b inch to 11a ir�ch <br /> 15- Determine required Flow Rate by multiplying the Totot Number of Perforations by the perforations <br /> Perforation Discharge. Dvieltings with 118 inch perforntbra <br /> 50 Perfs X Q.56 GPMperPerforation= 29 GPM `��' qtherestabiisnmenGandN�5T5with?(16 <br /> i�h to 1t41nch perforatiorts <br /> 16. Volume of Liquid Per Foot of Distrfbufion Piping(Tabte t!): 0.170 Gallons/ft 5��� �her�cablishmens ard:v,STS with I!9 inch <br /> perfcration, <br /> 17, Volume of Distr�bution Piping = <br /> i Table II <br /> =jNumber of Perjorated Lotera(s (Line 3)X Length of Loterats (Line 6)X ' Volume of liquid in <br /> (Votume of Liquid Per Foat of Distribution Piping(Line 16)] �Pe <br /> �� X 123 ft X 0.170 gal/ft = 20.9 Gallons Pipe Liquid <br /> Diameter Per Foot <br /> 18. Minimum Dose=Volume of Distribution Pipfig(Line 17)X 4 (inches) (Gallons) <br /> 1 0.045 <br /> 20.9 gals X 4 = 83.6 Gallans 1.25 0.078 <br /> 1.5 Q.110 <br /> mam o p�pe� I 2 Q.170 <br /> � 3 0.380 <br /> � 4 0.661 <br /> i <br /> pipe from purnp <br /> ., :,;+ir - . ._. <br /> IBan OUlS <br /> � Manifold pipe� <br /> � �� �� <br /> a <br /> aftemate lacation � <br /> of i from um _ <br /> ��� �terhate Ipcati�n <br /> f� oi pipe irom pump <br /> D� �fwrn �iun� <br /> Comments/Speciat Design Considerations: <br /> � <br /> � V <br /> I <br />