Effects of various operating conditions on the performance of a CO2 air conditioning system for trains
Effects of various operating conditions on the performance of a CO2 air conditioning system for trains
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不同运行条件对列车二氧化碳空调系统性能的影响
DOI：
10.1016/j.ijrefrig.2019.07.009
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发表时间：
2019-11
影响因子：
3.9
通讯作者：
Chen Jiangping
中科院分区：
文献类型：
--
作者：
Jiang Fuzheng;Wang Yufeng;Yu Binbin;Wang D;ong;Shi Junye;Chen Jiangping
本文旨在研究不同运行参数对列车跨临界co2空调系统性能的影响。为了提高系统效率，在列车系统中采用了类似的汽车二氧化碳空调系统设计，如内热交换器（IHX）。给出了不同制冷剂充注量、压缩机工作频率、室内风量流量、室外室温等不同试验条件下co2列车双独立回路空调系统的性能特性实验结果。这两个电路的两种不同的工作模式也包括在本研究中。在模式1下，当压缩机工作频率为55 Hz和40 Hz时，最大制冷量为24.3 kW，性能系数为2.7。室外室内温度为45℃时，制冷量最小，分别为16.2 kW和1.5 kW。当两路同时工作时，模式II制冷量和COP分别为42.0 kW和2.4 kW。试验结果与指导系统设计的数值模拟的系统性能误差在±5%以内。此外，还提出了列车交流系统跨临界co2循环的最佳高压控制算法。
This paper aims to investigate the effects of different operating parameters on the performance of a transcritical CO2air conditioning system for trains. Similar designs of automotive CO2air conditioning system are used in the train system such as internal heat exchanger (IHX) to improve the system efficiency. Experimental results are presented for the performance characteristics of the CO2train air conditioning system with two independent circuits under different test conditions such as different refrigerant charge amount, compressor working frequency, indoor air volume flow rate and outdoor chamber temperature. Two different operating modes of the two circuits are also included in this research. For mode I while only one circuit is working, the test results show that the maximum cooling capacity and coefficient of performance (COP) is 24.3 kW and 2.7, during 55 Hz and 40 Hz compressor working frequency conditions respectively. Also, the cooling capacity and COP reach the minimum, 16.2 kW and 1.5, when the outdoor chamber temperature is 45°C. For mode II while both two circuits are working, the results show that the cooling capacity and COP are 42.0 kW and 2.4, respectively. The system performance error between the test and numerical modeling which directs the design of the system is within ±5%. Furthermore, an optimum high pressure control algorithm for the transcritical CO2cycle of the train AC system is also presented.
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带串联气体冷却器配置的电动汽车 CO2 热泵系统的实验和数值研究
影响因子：
3.9
作者：
Wang Yufeng;Wang D;ong;Yu Binbin;Shi Junye;Chen Jiangping
通讯作者：
Chen Jiangping
影响因子：
4.5
作者：
S. Y. Liang;T. Wong
通讯作者：
S. Y. Liang;T. Wong
DOI：
10.1016/j.ijrefrig.2007.12.016
发表时间：
2008-09
期刊：
International Journal of Refrigeration-revue Internationale Du Froid
影响因子：
--
作者：
C. Aprea;A. Maiorino
通讯作者：
C. Aprea;A. Maiorino
影响因子：
3.2
作者：
MOFFAT, RJ
通讯作者：
MOFFAT, RJ
DOI：
--
发表时间：
2017
期刊：
--
影响因子：
--
作者：
Eirik Trygstad
通讯作者：
Eirik Trygstad