View Full Version : Compression ratio
A.Mortezania
24-02-2017, 07:04 AM
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.
Inverter man
24-02-2017, 10:59 AM
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.
Josip
24-02-2017, 12:15 PM
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 ... https://www.amazon.com/Century-Novelty-12-Treasure-Chest/dp/B002POEQEK
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.
check here,please..
http://www.refrigeration-engineer.com/forums/showthread.php?20350-Compression-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-contents/IIT%20Kharagpur/Ref%20and%20Air%20Cond/pdf/R&AC%20Lecture%2019.pdf
Best regards, Josip :)
A.Mortezania
27-02-2017, 08:56 AM
Dear Josip and Inverter man,
Thanks for help of both of you.
Sincerely yours.
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