Performance Analysis of Transcritical CO2 Two Stage Compression Cycle with an Intercooler (TSCC+IC) and the Cycle with an Expander (TSCE+IC)

Jing Rui Tian; Hong Li Wang; Hui Qin Liu

doi:10.4028/www.scientific.net/AMR.538-541.1998

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Performance Analysis of Transcritical CO2 Two...

Performance Analysis of Transcritical CO₂ Two Stage Compression Cycle with an Intercooler (TSCC+IC) and the Cycle with an Expander (TSCE+IC)

Abstract:

In range of high pressure, the performance of two stage compression cycle with an expander (TSCE+IC) is better than the two stage cycle with an intercooler (TSCC+IC). In the cycle (TSCE+IC), the optimum discharge temperature is 42°C and the highest COP is 3.3, in the cycle (TSCC+IC), the optimum discharge temperature is 50°C and the highest COP is 3.07. In the cycle (TSCC+IC), the optimum intermediate pressure is 5.8MPa and the highest COP is 3.08, in the cycle (TSCE+IC), the optimum intermediate pressure is 6.2MPa and the highest COP is 3.33. With increasing of evaporating temperature or decreasing outlet temperature of gas cooler, the performance of cycle (TSCE+IC) or cycle (TSCC+IC) is an increasing trend. Under the same conditions, expander cycle performance superior to the throttle valve performance. Some fundamental data were obtained for improving cycle performance and developing the products of CO2 refrigeration air condition and heat pumps.

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Periodical:

Advanced Materials Research (Volumes 538-541)

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1998-2002

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https://doi.org/10.4028/www.scientific.net/AMR.538-541.1998

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June 2012

Authors:

Jing Rui Tian, Hong Li Wang, Hui Qin Liu

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Performance Analysis, Transcritical CO₂ Two Stage Cycle, TSCC+IC, TSCE+IC

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