Share

Performance analysis of a cooling system with a natural-circulation loop using CO2.

[In Japanese. / En japonais.]

Author(s) : OKAZAKI T.

Type of article: Article

Summary

The experiments and calculations were carried out to evaluate the cycle performance of natural circulation loop with CO2. The cooling capacity of CO2 was compared with that of R410A and the cooling capacity of reverse circulation observed under the supercritical condition was analyzed from a point of view of refrigerant flow direction. The experimental results showed that the cooling capacity of CO2 was approximately 4 about 13% larger than that of R410A under the two-phase condition at indoor temperature of 30 °C. On the other hand, the cooling capacity of CO2 was approximately 11% smaller than that of R410A under the supercritical condition at indoor temperature of 50 °C. In addition, the cooling capacity with the counter-cross flow heat exchanger was approximately 40% larger than that with the parallel-cross flow heat exchanger under the supercritical condition at indoor temperature of 50 °C. These experimental results agreed well with the calculated results.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2006-0103
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 22 - n. 1
  • Publication date: 2005

Links


See other articles in this issue (4)
See the source

Indexing