what's the typical COP for vapor compression cycle refrigeration?How about COP for thermoelectric refrigerator

Question

It's for academic research. It will be great if you can support your claim with proof. thanks

Answer 1

From ref. 1, if the ambient temperature Th = 298K and the inside-refrigerator temperature Tl = 255K, the COP (coefficient of performance, energy transferred/energy used) for a vapor compression (VC) refrigerator "can be as high as 5.9". This is borne out by ref. 2, which states that the ideal Carnot engine efficiency Ec = 1 - Tl / Th and the COP of an actual machine with efficiency Em is defined as (1 - Em) / Em; so in the above example Ec =1 - 255 / 298 = 0.144 and the maximum theoretical COP = (1 - 0.144) / 0.144 = 5.94.
From ref. 3, "Conventional heat pumps have COPs of 2-5", and thermoelectric (CoolChips) have a projected Carnot efficiency about 0.55 and VC pumps about 0.45.

Answer 2

Cop Refrigeration