Air conditioner and energy efficiency calculation method thereof

Abstract

The invention discloses an air conditioner and an energy efficiency calculation method thereof. The method comprises the following steps that the current working condition of the air conditioner, power consumption of the air conditioner, the current frequency of a compressor and the shell heat dissipating capacity Qloss are obtained; the temperature t1 of a return air inlet of the compressor, the exhaust port temperature t2, the temperature t4 of the first end of an outdoor heat exchanger, the temperature t7 of the first end of an indoor heat exchanger and the air supply temperature t8 of the compressor are obtained; when the current working condition is the refrigeration condition, a refrigerant enthalpy value h1 of the return air inlet, a refrigerant enthalpy value h2 of an export port, a refrigerant enthalpy value h4 of the first end of the outdoor heat exchanger, a refrigerant enthalpy value h7 of the first end of the indoor heat exchanger, an enthalpy value h8' of a gas-state refrigerant added into the compressor and a hydraulic refrigerant enthalpy value h8'' of a flash evaporator are generated according to t1, t2, t4, t7 and t8 respectively; power of the compressor is obtained according to the current frequency and a preset compressor performance curve; the refrigerating capacity of the air conditioner is generated according to the power, Qloss, h1, h2, h4, h7, h8' and h8''; the energy efficiency of the air conditioner is generated according to the air conditioner power consumption and the refrigerating capacity.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an energy efficiency calculation method of an air conditioner, an air conditioner and a non-transitory computer-readable storage medium. Background technique [0002] Whether the air conditioner is energy-saving and comfortable is a problem that users are more concerned about. [0003] Since the current air conditioners cannot know the changes in energy efficiency during operation, it is difficult to maintain a good operating state, and the cooling and heating effects and energy-saving performance are not ideal. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, the first object of the present invention is to provide an energy efficiency calculation method of an air conditioner, which can accurately detect the energy efficiency of the air cond...

AI Technical Summary

Problems solved by technology

[0003] Since the current air conditioners cannot know the changes in energy efficiency during operation, it is difficult to maintain a good operating state, and the cooling and heating effects and energy-saving performance are not ideal.

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