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�� � OSTP Pressure Distribution <br /> Minnesota Pollution UNIVERSITY <br /> ControlAgency Design Worksheet OF l�INNESOTA '=��-,� <br /> ProjectlD: v 12.08.06 <br /> 1. Media Bed Width: 10 ft <br /> 2. Minimum Number of Laterals in system/zone=[(Media Bed Width(Line1)-4):3] +1 round up to the neareast whote number+1. <br /> ( 10 -4)+1 = , �laterals <br /> 3. Designer Selected IVumber of Latera(s: �laterals <br /> Cannot be less than llne 2(acceat!n at-Qrades) _ ---- <br /> ���N � <br /> 4. Select Perforation SpQcing: 3.0 ft - �, � : ;-==r = <br /> �� .,r: ,�... ta;,,, r �-� . 3ay..�.. 1 -.�-�.4�. <br /> '.. �r `.: .��x Stl�COVM � _ ' <br /> 5. Select Per oration D�ameter S�ze: 7/32 �n � M„� �o�- <br /> � - �. �nrrlaac o r..slwuv4�awirr�� iT 2^.,6f,�ocYs �`'1 X <br /> 6. Lenyth of Loterals =Media Bed Length-2 Feet. «�.'ur„�k ` <br /> � H!riwatlan slr.+�g:`k"[o`!.' PM'wa�ihn sM inq:7'to 3• . <br /> 63 - 2ft = 61 ft Perforation can not be closer then 1 foot from edge. <br /> � Determine the Number of Perforation Spaces. Divide the Length of Laterals (Line 6)by the Perforatfon Spacfng (Line 4)and <br /> round down to the nearest whole number. <br /> Number oj Perforatlon Spaces = 61 ft .- �ft = 20 Spaces <br /> Number of Perforations per Latera( is equal to 1.0 plus the Number of Perforation Spaces (Line 7). Check tabte below to verify the <br /> 8' number of perforations per lateral guarantees less than a 10%discharge variation. The vatue is double with a center manifold. <br /> Perforntions Per Laterai = 20 Spaces + 1 = 21 Perfs. Per Lateral <br /> ' �r t�P�r�t P�r t.aC�r�t ta G��449f �f� <br /> d,� P aticns 71��h Pc�for� <br /> P�ot����Frety �t��er(Nxh�s� Pe�c�a�on 5pati� ��'���� <br /> i ti� 1�h 2 � �Fee#� f _iib 1'� �2 _.� <br /> g 10 13 1� � �t! 2 ti _ 1� 2f 34 I� <br /> 2� $ 12 1� 28 ri �Yr #� 14 � 32 f�! <br /> � � t1 t� � S3 3 9 14 f�! � 60 <br /> 3Jib t�ch P�forat�ns 1!�lnrh P�€� <br /> P�#o��#�on�{F�et� ����� Per�t�rat�cn S�ci� �����s� <br /> t ili 1�t 2 3 �F�� 1 1�i tYt � 3 <br /> 2 12 i� ti � 87 2 2t 33 �N 7� 14!� <br /> Z3� 12 17 2� � � 2�h �� �f 41 �9 {35 <br /> 3 13 t6 22 3? 7� 3 � 19 3d 64 128 <br /> 9• Total Number of Perforations equals the Number of Perforations per Latera! (Line 8)multiplied by the Number of <br /> Perforated Lotera(s (Line 3). <br /> 21 Perf. Per Lateral X �Number of Perf. Laterals = 63 Total Number of Perf. <br /> 10. Select Type of Monifold Connection (End or Center): [�] end ❑ Center <br /> 11. Select Latera(Diameter(See Table): 2.00 in <br />