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Thread: Sub cooling from a condenser
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28-05-2015, 09:38 PM #15
Re: Sub cooling from a condenser
If the condensing temp is 15 degs higher than ambient (which is normal in most air cooled condensers)
the amount of energy used to lift the pressure / temperature will be a fraction of that used to lift
the condensing pressure / temperature up by 25 degs.
I can't see any advantage of lifting the condensing temp that high just to gain more subcooling
and bear in mind the subcooling will still be above ambient.
The only true advantage is when the liquid is cooled way below ambient and that can't be done
for free so a well designed system with extra / additional subcooling will improve the efficiency
of the system but the subcooling is additional to the free subcooling gained in the condenser.
Rob
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