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A useful measure for this comparison is the COP (Coefficient of performance) which measures ratio between the heat energy transferred over the energy used. The following is a theoretical prediction of the COP a Peltier element, with respect to temperature difference. For a split unit heat pump, you can find different values but in most cases, the COP of the ...


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Your calculations are probably wrong. Peltier effect coolers are known to be extremely inefficient in converting electrical power into useful refrigeration. This is why they are not commonly used in things like home refrigerators and air conditioning units, where heat pumps are far more effective. The figure of merit for refrigeration efficiency in things ...


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