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Thread: Time required for cooling
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14-04-2019, 09:04 AM #1
Time required for cooling
Hello,
For a typical bed room (lets assume 4m X 3m X 3m), lets assume it requires 1.5TR of refrigeration. When typical split units are considered, the desired temperature is attained in some 10-20 min during initial start up, and the compressor cycles at random intervals. Is there a method to determine this time required to cool down the air?
For example, if I propose 1TR unit instead of 1.5TR, I presume the unit will run for longer, but how longer?
Can some explain?
Thanks
Nevin.
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16-04-2019, 05:17 AM #2
Re: Time required for cooling
Hi,
I dont like tonnes....lets say kW.
total heat load/cooling time = capacity required.
in first case heat load = capacity*cooling time in sec
so, heat load = 5.25kW*20*60
= 6300 kJ
so if you use 1 ton unit = 6300/3.5
=1800 s
=30 minutes