CO2跨临界循环高压侧压力控制的热力学分析

工程热物理学报 , 2000, 21(5): 537-540.

CO2跨临界循环高压侧压力控制的热力学分析

王侃宏 ^1, , 马一太 ^2, , 杨昭 ^3, , 吕灿仁 ^4,

1.天津大学热能研究所，天津 300072

2.天津大学热能研究所，天津 300072

3.天津大学热能研究所，天津 300072

4.天津大学热能研究所，天津 300072

基金项目: 天津市自然科学基金(983605811) 国家自然科学基金(59876028)

关键词： CO2 , 跨临界循环 , 最优压力 , 节流控制

THERMODYNAMIC ANALYSIS ON HIGHSIDE PRESSURE CONTROL OF CO2 TRANSCRITICAL CYCLE

Keywords： CO2 , transcritical cycle , the optimum pressure , throttle control

本文介绍了CO2跨临界循环高压侧压力控制的基本原理；通过循环分析，阐述了不同压力运行条件对制冷量和制冷效率的影响。通过对所得结果的分析论证，提供并优化出一种简单、实用的压力控制调节方案，该方案对汽车空调、热泵系统更有实用意义

This paper first introduces the basic principle of highside pressure control and the concept of the optimum pressure. The influence of varying pressure, operating conditions on capacity and efficiency is expatiated through cycle analysis. The paper, according to the results of analysis and demonstrating, put forward a new applied and simple scheme of highside pressure control. The scheme has even more significance for automobile aircondition and heat pump system

参考文献

[1]	J Pettersen;G.Skaugen;Sintef.Operation of TransCriticalCO2 Vapor Compression Circuits in Vehicle Air Conditioning[M].ASHRAE Transaction: Symposia,1994:495504.
[2]	Petter Neksa et al.CO2Heat Pump Water Heater:Characteristics System Design and Experimental Results[J].International Journal of Refrigeration-Revue Internationale du Froid,1998,21(03):172179.
[3]	G Lorentzen;J Pettersen .A New Efficient and EnvironmentallyBenign System for Car Air Conditioning[J].International Journal of Refrigeration-Revue Internationale du Froid,1993,16(01):4-12.
[4]	Gustav Lorentzen .Revival of Carbon Dioxide as a Refrigerant[J].International Journal of Refrigeration-Revue Internationale du Froid,1994,17(05):290-310.
[5]	张祉佑.制冷原理与设备[M].北京:机械工业出版社,1987

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