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J , ' ' <br /> _ fa ��- . <br /> :r�:�„'�;;,��!i■�l�T <br /> _ - �_� _. , <br /> �it�� so .�e.arno» ar . ro.aw.,m �.� <br /> L M■���L6�'�P�hour(IO gpN 10 se�y s��sd of <br /> a..w <br /> �� <br /> Z Ma�t�e�d fordeitver}*to i devp booc af a t�e�t is 2.700 <br /> g�li�per hoar(45 gpm)to pre�nt baiid-��P�'�A d�ov boac- �::`��.�.a..�...� �f-'u""�,.,;:�'�.�,.�:+• <br /> �.... <br /> Pres�rDbte�bstiaa <br /> ar�....r <br /> 3. a. Seiect mu�ervf perforated laterals__ ��` �,.�..-...... <br /> b. �!'[� lf011 fl a : �►��� <br /> � . s�� g �.��E�. <br /> c Subtrxt 2 f�frvm the rocic layer iength, e,,,�,,.,,�„� ..�..�• <br /> ��--�-2 f�= ft. <br /> L°'w"�s.r �.�rp arMw <br /> d. Deletmine the number of ces between �"""`•'••'"•• <br /> spa perforations. <br /> �$W pei�•spK7�g= f t.+ f t.= SpaCes TABLB OF PBRf�RA'nON <br /> e. �t 1 a �fOf8t1011S��att'!a� �ARC2iIIdC�1 <br /> ' f. Multiply ptrforaticns per iateral by number of laterals to t�.a �e„d�„��� <br /> get tolai rnsmbe�of petforations. <br /> �'. X --�= perforation�. 'la '/. <br /> i.a os6 a» <br /> & �" x"",.r gP�' i.sos o.e � <br /> is o.aa �,» <br /> SF3.ECTED PUMP CAPACITY �"'� gpm �.o i.t3 ��� <br /> s.o �.za �.� <br /> 8.Debermine head re�uirea�entx <br /> 1. Eitntion diiference brtween pump and point of disd�arge. •u..�.o toocat t..a tar n,�� <br /> _ 13 feet �•zo�d�.�arer�r� <br /> Z jf F��pinB t��pe�dtsteibution systcm,add five feet for pre�ure <br /> �qnired at rr�asafa� <br /> �_fee! � <br /> 3. F�ction b�s p��t� <br /> s. Enter fricdon loas taWe with gpm a�pipe diametcr. � <br /> �tad trictlon la�ia feet per 100 feet f�n tabie. �°��'�"'�° <br /> F.L• 2-_,� Et/l00 ft�pipe ��,� <br /> bs. De�ermine eobi pipe length f�wn pump ro d� <br /> point Add 25 pez+cent to pipe length fo��tting . <br /> 10�►orax a fittlng lo�a chart. Equivaient pipe F-iab <br /> kngth-IZS times pipe len�th: . <br /> ��_�_X 1.25= ,"<:`` feet ;R��..� '��.��;ineh <br /> c. Cakviste total frictfon lo�by muitipiying � <br /> frfctfon loss in ft/l0a ft uivalent 10 (�69 0.2U <br /> bY eq P�Pe lcr�gth. 12 u.96 0 2E <br /> Torai friction loss• �ole.=-S x "=.___ w=,.100=`Eeet ia 1.2s 0.3s <br /> 4. Totai he�d rsquired;s the�um of cfevation differ�ence, 16 1.b3 O.aB <br /> aQecisi l�d:equie+ar�ts,and totaf friction lo�. 13 20I 0.60 <br /> ZO 24� 0.7� . 0.11 <br /> 23 3•73 1.11 0.16 <br /> � � + �� +_ _ 30 5.23 t.SS O.Z3 <br /> (l� {7J (3c) �- �•� � 0.30 <br /> V4Q. 11.07 �6,�•' 0.39 <br /> 45 t4.73 3.28 0.48 <br /> Z'OTAL HEAD : fee! Sfl 3.99 0.58 <br /> 55 4.76 Q,7p <br /> C Pnmp selection <br /> � 5.60 0.82 <br /> I. A pump must be seiected to deliver at least `"'_gpm (Step A) <br /> with at least -.�� fee! of total head (Step B). <br /> . <br />