WebMar 2, 2024 · Heat pump and refrigerator are two names of the same device. When we use this device to remove heat then it is called a refrigerator and when we use this device to obtain heat then it is called a heat pump. Coefficient of Performance (COP) is defined as the ratio of desired effect to work input. COP = Desired effect/ Work input WebSep 9, 2024 · The coefficient of performance must therefore be defined as Q 2 divided by the net work done on the fridge per cycle. For a …
Why is COP used in refrigeration instead of efficiency? - Quora
WebAug 8, 2012 · 1. Coefficient of performance (COP) talks about the amount of heat … The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs. The COP usually exceeds 1, especially in heat pumps, because, instead of just converting wor… cn/s/8f6c8b95ec6e
Answered: 2. A refrigerator has COP of 3. How much work must be ...
WebThe performance of refrigerators and heat pumps is expressed in terms of coefficient of performance (COP): net in H HP net in L R W Q COP W Q COP,, The Reversed Carnot Cycle Reversing the Carnot cycle does reverse the directions of heat and work interactions. A refrigerator or heat pump that operates on the reversed Carnot cycle is called a Carnot WebThe COP characterizes the amount of heat removed from the cooler. The COP for … WebMay 1, 2024 · The exergetic coefficient of performance (COP ex) of the refrigeration system is the second-law efficiency of the cycle. It is defined as the ratio of useful exergy rate, which is the thermal exergy of the heat removed by the evaporator, to the required exergy rate, which is the work done by the compressor. The COP ex can be written as : calcium is stored and released by