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This document provides information to design an electric submersible pump (ESP) system, including: - Total dynamic head of 102.9 ft or 31.36 m - Flow rate of 0.12744 ft3/sec or 13 m3/hr
T o t a l d y n a m i c h e a d=1 0 2.9 f t 3 1.3 6 m t r flow 0.12744 ft3/sec 13 m3/hr 5 7.2 G!T o t a l "e r t i c a l l i f t =9#f t 2 9.#7 m t r.t o t a l e$%i"e l e n t &i&e l e n't h=2 0 2.9f t 6 1.#4m t r.(&e r a t i n' )e l o c i t y 2.6 0 f t/s e c 0.7 9 m/s e c(&eratin' ress%re 4 4.5 9*+3.0 7,a r
POWER REQUIREME!S -y d r a%l i c o w e r 1.4 9 - 1.11 +nstalled %m& fficiency "# r ae o w e r 2.1 3 ,- 1.5# , !otor fficiency "# !otor +n&%t ower 3.04 - 3$# ote%& Put input 'lues in
-ei'ht a,o"e the well 3 f t 0.9 1 4 4 m t r. + , f t 1.5 2 4 m t r. 3 standin' water le"el -# f t 2 4.3#4 m t r. the standin' water le"el ofwater also called the static at rest water le"el. . &%m& le"el inside the well 1/# f t 5 7.9 1 2 m t r. , ischar'e &i&e dia = 3 i n c h 0.0 7 6 2 m t r. 0 rawdown 1, f t 4.5 7 2 m t r. " ele"ation to &oint of %se 3 f t 0.9 1 4 4 m t r. is the distance from well to& to to& of stora'e tan. - r i c t i o n l o s s 4.9 f t 1.4 9 3 5 2 m t r.
The +8T+( :(**; meas%red in e$%i"alent meters or feet; is the &ress%re re$%ired to o"ercome friction in the &i&es from the &%m& to the &oint of %se. The friction is ,ased on< rate of flow; the len'th; diameter; and ty&e of &i&e; and also the n%m,er and ty&e of &i&e fittin's %sed. The 'reater the flow; the 'reater the +8T+( :(**. Ta,les are %sed to calc%late friction loss.
/ Tan &ress%re # &s i 0&a T> **?; e@&ressed in e$%i"alent meters or feet of head; is the o&eratin' &ress%re of the stora'e tan. *olar &%m&in' systems ha"e "ery lar'e tans ,eca%se no water is &%m&ed at ni'ht or in "ery clo%dy weather; &ress%riAed tans are rarely %sed in solar &%m&in' systems. -owe"er;systems with ,attery &ower can ,e %sed to &%m& to &ress%riAed tans. or ty&ical; non&ress%riAed systems; T> **? e$%als Aero.8lo%dy weather will also affect the flow rate. The flow rate "aries o"er the co%rse of the day with the &ea flow occ%rrin' at midday. eca%se o%r system desi'n is not com&lete a &%m& and array ha"e not ,een selected yet; the T(T>: >+:B (?T?T can only ,e estimated. T o estimate the flow rate; mae a '%ess for the T(T>: >+:B (?T?T and %se the followin' e$%ations* distance of dischar'e from well the distance the standin' water le"el lowers when water &%m&ed from the well.de&endin' %&on well.the drawdown may ,e1 C 20 meters or 3 C 50 feet or moreslow flowin' wells will ha"e more drawdown. The 'reater flow the 'reater drawdown..&%m&in' le"el = drawdown Dstand. water le"el.+f the system stora'e t an is located close to the well head; 10 meters 30 feet or less; and the recommended &i&e siAe is %sed; a sim&le r%le can ,e %sed. riction loss; in e$%i"alent head; can ,e estimated at 5 of the T(T>: )T+8>: :+T. This will allow for a few strai'ht r%ns of &i&e and a few fittin's.
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