R32を用いた家庭用空調機の性能評価

Translated title of the contribution: The Performance Evaluation of Room Air Conditioner Using R32

平良 繁治, 矢嶋 龍三郎, 小山 繁

Research output: Contribution to journalArticle

Abstract

This paper deals with an experimental study on the performance evaluation of a room air conditioner using R32. The test room air conditioner is a product developed for the R410A use. The COP, cooling and heating capacities, charge amount of refrigerant, electric power input, refrigerant thermodynamic states in the air conditioner etc. were measured for both refrigerant R410A and R32, based on JIS-C9612 standard. The experimental results of R32 are evaluated in comparison with the results of R410A, and the following are confirmed :(1) The performance of R32 is higher than R410A. This reason is mainly due to the pressure drop and heat exchange characteristics (in the evaporator and the condenser), (2) The charge amount of R32 is less than that of R410A. From the above results, the further improving the performance and saving the refrigerant amount are expected when refrigerant R410A is replaced with R32. The effects of the performance of components on the COP are also analyzed based on the measured thermodynamic states at both ends of components in the system. Then, it's clarified that the most effective factor is irreversibility of the compressor and the following is the pressure drop in low pressure side including the evaporator and the suction pipe in the system.
Original languageJapanese
Pages (from-to)347-354
Number of pages8
Journal日本冷凍空調学会論文集
Volume18
Issue number3
DOIs
Publication statusPublished - 2001
Externally publishedYes

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Refrigerants
Air
Evaporators
Pressure drop
Thermodynamics
Compressors
Pipe
Cooling
Heating

Cite this

R32を用いた家庭用空調機の性能評価. / 平良繁治; 矢嶋龍三郎; 小山繁.

In: 日本冷凍空調学会論文集, Vol. 18, No. 3, 2001, p. 347-354.

Research output: Contribution to journalArticle

平良繁治, 矢嶋龍三郎 & 小山繁 2001, 'R32を用いた家庭用空調機の性能評価', 日本冷凍空調学会論文集, vol. 18, no. 3, pp. 347-354. https://doi.org/10.11322/tjsrae.18.347
平良繁治 ; 矢嶋龍三郎 ; 小山繁. / R32を用いた家庭用空調機の性能評価. In: 日本冷凍空調学会論文集. 2001 ; Vol. 18, No. 3. pp. 347-354.
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