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OSTP Pressure Distribution uNI�ERSITY <br /> Minnesota Pollution Design Worksheet OF MINNESOTA '_ , <br /> Control A enc v 11.09.22 <br /> ProjectlD: <br /> 1. Select Number of Perforated Laterals in system/zone: C� ,,,,,J,r,.r.,eS.�.--- <br /> (2 feet is minimum nnd 3 feet is maximum spacing) _ _- _ _ _. �-� �__ <br /> � <br /> 3.0 ft �_ - o� =- <br /> 2. Setect Perforation Spacing: x � <br /> Miri�n / <br /> '/:"perio�ations zpaced 3'apart 1"-2"of rock 12" <br /> 3. Select Perforation Diameter Size 7/32 in _ - <br /> 6"of rock <br /> Perfor,a[ioi�s ii�g'.�� o /." Pertoiation sV�fincJ 2' 0 3- <br /> 4. Length of Loterals =Media Red Length - 2 Feet. <br /> 26 _ 2ft = 24 ft Perforation can not be doser then 1 joot from edge. <br /> 5. Determine the Number of Perforotion Spoces. Divide the Length of Laterals (Line 4)by the Perjoration Spacing (Line 2)and <br /> round down to the nearest whole number. <br /> Number of Perjoration Spaces = 24 ft - �ft ' �Spaces <br /> 6. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforotion Spaces (Line 5). <br /> Perforations Per Lateral = ��Spaces + t = ��Perfs. Per Lateral <br /> Check table below to verify the number of perforations per latera!guvrantees(ess than a 10%discharge variation. The va(ue is <br /> doub(e if the a center manifold is used. `_� _ _ <br /> Maximum Number i�f Peri�uations Per Lat�ral to Guarantr?<10=e Di<.,ch�rge'Jar.at;i� <br /> --- - ---�-�-----•--- � 7��32 I'ic't Perfur�tiC�'�5 <br /> �.":�(iC:'1�'•'i1Gf d,.,at15 i <br /> ' Fipe Dia^�:?+ iinchesl - Fe�for�tio!��Sp�:in��F'ip�Uam.:�;•-r ilnches) <br /> I PerfprhC;t��i SFnC��-IFerCf �--- � 2 � I��ret! 1 � 1�'• � ' I 3 <br /> i 1 1'�: � 1'�". � ` � ! <br /> � 2� 11 16 21 I 33 i 6 <br /> '- Z `��(� i 13 1 E 30 hU � <br /> ____t__-� ( D I F+ � 2'.. 10 ' 14 I Z(-) {Z ' F� <br /> �/�; � ? � �j � �O L'J J'1 I , I <br /> ~- 3 -- g 12 16 25 5� 3 9 � 1�3 � i9 30 ha <br /> � 3'16 lrxh Fer'iKatiati. 1'3 ir�.7 Fe�turat�ons <br /> ftipe C�i;^,wt�r fi;�ihesl Pe�toratiun Spaiing PipY[tem�;er flnrh,�>i - <br /> ���� r':.rtora.:i�njpac��n� IFr�t) � ., 3 ifeE;l t ����T�i;^ � � � 3�. <br /> � I 1 1,: � 1�. � 2 , ' , <br /> Z �l �a � 26 a� s� 2 1� 33 � a-� �� , �a� <br /> �; 2ti^ �� t7 2a aC� s0 2�•i Zi� 1G � a1 i bv '�, �_�5 <br /> �� 3 1"1 16����21 � 37 75 3 20 Z9 ��38 � 64�12g��. <br /> 7. Tota!Number of Perforations equals the Number of Perforotions per Lateral (Line 6) multiptied by the Number of <br /> Perforated Loterols (Line 1). <br /> �9�Perf. Per Lateral X �Number of Perf. Laterals = 27 Total Number of Perf. <br /> �----- <br /> j PerlwaHon DlschargQ(GPM) <br /> 8. Calculate the Square Feet per Perforation. Recommended value is 4-10 ft per perforation. � o�no^D1iTe Q <br /> Does not appl y to At-Grades Mead((q � - , . <br /> Bed Area = Bed Width (ft)X Bed Length (ft) ,.o• o,e °•, °.56 °" <br /> - 1.5 0.22 0.51 0.69 0.9 <br /> 10 ft X ZV ft - �po ftZ 20° 0.26 0.59 080 104 <br /> 2.5 0.29 0.65 0.89 1.17 <br /> 7.0 0.32 0.72 0.9H 1.2! <br /> {.0 O.)7 0.8] 1.17 1.17 <br /> Square Foot per Perforotion =Sed Area divided by the Total Number of Perforations (Line 7). S.o, o.+, 0 93 ,:b ,6S <br /> � t Gioc Dwellingi vnch 3it6 incn co i/a ircn <br /> 260 ftZ - 27 perforations = 9.6 ftZ/perforations DeAoreciom. <br /> Owelling vrieh I/e inch perioratortc <br /> 2 tee[ Jf her e.tabliShmenC.and MSTi v+ith 3�16 <br /> 9. Select Minimum Average Heod: 1.0 ft '"`"`°"""`h°"`°`�"°'� <br /> s r� ane«scaw�:nmz�cs��o M;rs w;�n i ia,Mn <br /> pertoraciorrs <br /> 10. Select Perforation Discharge (GPM)based on Table ill: 0.56 GPM per Perforation <br />