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Thread: Compression ratio
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24-02-2017, 07:04 AM #1
Compression ratio
Dear Friends,
I have a question. Do you have any document that explains refrigeration compressor compression ratio at air-conditioning system and refrigeration systems ?
Thanks.
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24-02-2017, 10:59 AM #2
Re: Compression ratio
Compression ratio = Discharge pressure / Suction pressure. (Absolute pressures should be used).
The smaller the ratio is, the more efficient the pumping is.
If the ratio is high, less refrigerant mass is pumped over a given time especially in piston compressors, therefore more energy is consumed over time by the compressor motor or drive to achieve the same refrigerating effect as opposed to a low compression ratio.
Lower compression ratio = more pumping.
Higher compression ratio = less pumping.
No documents but hope this helps.Last edited by Inverter man; 24-02-2017 at 12:00 PM.
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24-02-2017, 12:15 PM #3
Re: Compression ratio
Hi, A.Mortezania
it is archived a lot of answered questions here on RE forums ...
but you need to do searching by yourself ...
sometimes much better if you want to learn something .... believe me
RE archive is like ... Treasure chest ...
check here,please..
http://www.refrigeration-engineer.co...ression-Ratios
also www is full of documents like this one ...
http://www.hvacrinfo.com/cope_ae_bulletins/TAE1268.PDF
http://nptel.ac.in/courses/Webcourse...cture%2019.pdf
Best regards, JosipLast edited by Josip; 24-02-2017 at 12:18 PM. Reason: to add a link
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Please, don't teach me how to be stupid....
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27-02-2017, 08:56 AM #4
Re: Compression ratio
Dear Josip and Inverter man,
Thanks for help of both of you.
Sincerely yours.