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Anonymous Poster

RECIPROCATING COMPRESSOR

08/08/2008 1:35 AM

HOW OVERALL EFFICIENCY OF A RECIPROCATING COMPRESSOR CAN BE CALCULATED BY USING ONLY BORE, STROKE H.P DISCHARGE , AND MOTOR CAPACITY AND ACTUAL OUTPUT.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: RECIPROCATING COMPRESSOR

08/08/2008 4:35 AM
  1. Turn off Caps Lock to avoid waking the dead by SHOUTING.
  2. The shaft power required for any process fluid is the difference in enthalpy between the start conditions and the end conditions, times the flowrate, all expressed in compatible units.
  3. The efficiency is the shaft power requirement calculated from 2 divided by the electrical power input.
  4. If the efficienct is over 100% then there's something wrong with the calculation.
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Anonymous Poster
#2

Re: RECIPROCATING COMPRESSOR

08/09/2008 1:17 AM

Please download this file.

It should enlighten you / confuse you / answer any of your questions.
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Anonymous Poster
#3

Re: RECIPROCATING COMPRESSOR

08/09/2008 1:21 AM

Also see:

http://www.vairex.com/pdf/Efficiency-0523.pdf
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