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uday_pr
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Join Date: Aug 2007
Location: Dombivli, Maharashtra, India
Posts: 31
Good Answers: 1

Thumb Rules of Refrigeration?

09/10/2012 12:53 PM

What are the Thumb Rules of Refrigeration?

What is the relationship between Compressor Capacity(TR) and Cooling Surface of Condenser/Chiller?

What is the relation between Compressor Capacity(TR) and Motor HP/KW?

How the sizing is done?

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 U.M.Patankar
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SolarEagle
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Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#1

Re: Thumbs Rules of Refrigeration?

09/10/2012 1:05 PM

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Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
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#2

Re: Thumb Rules of Refrigeration?

09/11/2012 2:05 AM

None of the above.

Try a new multiple-choice test.

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pritam
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Engineering Fields - Mechanical Engineering - New Member India - Member - New Member

Join Date: Aug 2008
Location: City of destiny, INDIA
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#3

Re: Thumb Rules of Refrigeration?

09/29/2012 7:14 AM

Compressor Capacity(TR) and Cooling Surface of Condenser/Chiller?

Uday, first of all compressor capacity is not TR. Also Compressor Capacity can not be compared with Cooling Surface which is area.

Here I want to explain very simple fundamentals. Divide the cooling capacity of chiller expressed in kcal/hr by 3000 to get TR. Now about the relationship among terms in your question is as follows:

Cooling capacity of condenser = Cooling capacity of chiller + compressor power (in heat units)

Above relationship can be easily verifiable in PH diagram (no thumb rule). Also a very important performance parameter (COP) is derived from the two terms on RHS.

COP = Cooling capacity of chiller / compressor power (in heat units)
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uday_pr
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Join Date: Aug 2007
Location: Dombivli, Maharashtra, India
Posts: 31
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#4
In reply to #3

Re: Thumb Rules of Refrigeration?

09/30/2012 1:47 AM

Dear Mr. Pritam,

Thanks.

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