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Anonymous Poster

Ton of Refrigration

01/08/2011 7:51 AM

I have multistage refrigration system and all loads are in kw how i can convert these kw in ton
Example
100kw at -10°C Ton?
100kw at -35°C Ton?
100kw at -45°C Ton?

kindly update me

regards

Soomro

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Join Date: Jan 2009
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#1

Re: ton of refrigration

01/08/2011 8:54 AM

One watt equalls 3.4 BTU, 12,000 btu's equall one ton. 100KW would be 340,000 BTU's. About 28.3 Tons of cooling. Is this a cascade system?

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Guru

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#2

Re: ton of refrigration

01/08/2011 9:39 AM

100Kw = 341442.594972 BTU/hour. You can take it from there. Help may be in your text book, too.

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#3

Re: Ton of Refrigration

01/08/2011 1:42 PM

A note of caution: In a multistage system, the load is progressively higher from stage to stage, because each higher stage also absorbs the motor energy of the lower stage(s).

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#4

Re: Ton of Refrigration

01/08/2011 10:55 PM

1 TR= 3.5167 kW=12000 Btu/Hr=50.4 kcal/min

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Anonymous Poster
#5

Re: Ton of Refrigration

01/09/2011 12:09 AM

Engineers screw up everything. Do the really mix heat with mass? It might be they would need to vaporize a ton of refrigerant to get 100 kW of cool? It sounds funny to me too. Perhaps these guys want to confuse competition? or perhaps they do not know what they right as have too little blood cells in cocaine in their body?

Confused physicist!

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#6
In reply to #5

Re: Ton of Refrigration

01/09/2011 1:44 AM

You think this is bad, look in to FPS bricks.

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#7
In reply to #5

Re: Ton of Refrigration

01/10/2011 1:20 PM

"Engineers screw up everything. Do the really mix heat with mass?"

It is more of a concession to a customer than mixing units. You see, refrigeration's roots are in the ice making industry, and the ice guys wanted to convert this (BTU/Hr, which meant nothing to them) into ice production. If 288,000 BTU are required to make one ton of ice, divide this by 24 hours to get 12,000 BTU/Hr required to make one ton of ice in one day.

This system does not appear too screwed up to me. (Second time I got to use this!)

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#8

Re: Ton of Refrigration

01/10/2011 2:54 PM

1 Watt hour=3.41214 BTU

12,000 Btu per hour =1 Ton of refrigeration

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