Thermodynamic Analysis of a R32/CO₂ Cascade Refrigeration Cycle

Abstract:

A R32/CO₂ cascade refrigeration cycle was analyzed thermodynamically, the results show that: Under given working conditions, there exists the best condensing temperature of the low-temperature circuit to make the maximum COP of the cycle. The lower evaporating temperature is, the lower the best condensing temperature of the low-temperature circuit is. Under the same evaporating temperature, COP increases and m_H/m_L decreases along with condensing temperature decreasing, under the same condensing temperature, COP decreases and m_H/m_L increases along with condensing temperature decreasing. To reduce the temperature difference in the cascade-condenser can increase COP and decrease m_H/m_L.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 527-530
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.527
• Online since: August 2013
• Authors: Jian Xiao, Ying Fu Liu
• Keywords: Cascade Refrigeration System, R32/CO₂, Thermodynamic Analysis

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