A Method for Evaluating Refrigeration Efficiency of Household Air Conditioners

Abstract

The invention provides an evaluation method for household air conditioner refrigerating efficiency. The method comprises the steps that different operating environmental parameters of a new air conditioner and a database of a corresponding operating temperature variation curve are established; operating environmental parameters of an old air conditioner are matched to the operating environmental parameters of the established new air conditioner of the same type to obtain the operating temperature variation curve family of the matched new air conditioner of the same type; the operating temperature variation curve family of the new air conditioner matched to the operating parameters of the old air conditioner is clustered to obtain a clustered center; the average Euclidean distance between an operating temperature variation curve of the old air conditioner and the clustered center of the operating temperature variation curve family of the new air conditioner of the same type is computed;the refrigerating efficiency of the old air conditioner is evaluated according to the value of the average Euclidean distance. The method has the advantages that auxiliary judgement can be well provided for the early discovery and eliminating of the faults of a household air conditioner, and a large amount of labor force and materials resources are saved.

Description

technical field [0001] The invention relates to the field of equipment monitoring, in particular to a method for evaluating the refrigeration efficiency of a household air conditioner. Background technique [0002] Due to production quality problems, installation process defects, or multiple relocations, household air conditioners may cause refrigerant leakage after a period of operation, and the cooling effect will gradually decline. At the same time, for household air conditioners that have been used for a long time, the surfaces of the rotating parts of the internal and external units, air filters, heat exchangers, etc. will absorb and adhere to dust and other dirt, and the warped fins of the heat exchanger will also gradually oxidize, making the dirty The continuous accumulation and thickening of substances and oxide layers will increase the resistance of the rotating parts of the air conditioner and reduce the heat exchange efficiency of the heat exchanger; the working ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for evaluating the cooling efficiency of a household air conditioner, which can effectively solve the problem in the prior art that it is difficult for ordinary users to judge whether the cooling efficiency of a household air conditioner is low, and a professional needs to be hired home diagnosis problem

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