Experimental Investigation of Cooling Coefficient of Performance and Cooling Capacity in a Refrigerant System with Carbon Dioxide

Makoto Igarashi, Shogo Tamaki, Yuuko Fujii, Yohsuke Matsushita, Hideyuki Aoki, Takatoshi Miura, Koichiro Take, Hidemitsu Hamano

研究成果: Article査読

抄録

The performance of a refrigeration cycle with carbon dioxide was experimentally investigated. The effects of mass flow rate of carbon dioxide, higher side pressure and refrigerant mass on the cooling coefficient of performance, cooling capacity and compressor work were examined. Then cooling coefficient of performance decreased and cooling capacity increased with an increase in mass flow rate of carbon dioxide. The cooling coefficient of performance had maximum value at a gas cooler outlet pressure of around 8.3 MPa regardless of compressor speed. A higher cooling coefficient of performance will be obtained by controlling gas cooler outlet pressure. Furthermore, compressor work increased with an increase in gas cooler outlet pressure regardless of refrigerant mass. The cooling coefficient of performance and cooling capacity increased with an increase in refrigerant mass.

本文言語English
ページ(範囲)566-570
ページ数5
ジャーナルkagaku kogaku ronbunshu
34
6
DOI
出版ステータスPublished - 2008 12 1

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)

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