Parametric analysis of a new combined cooling, heating and power system with transcritical CO2 driven by solar energy
Parametric analysis of a new combined cooling, heating and power system with transcritical CO2 driven by solar energy
复制标题
太阳能驱动的跨临界二氧化碳新型冷热电联产系统的参数分析
DOI:
10.1016/j.apenergy.2012.01.007
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发表时间:
2012-06
期刊:
影响因子:
11.2
通讯作者:
Dai Yiping
中科院分区:
文献类型:
--
作者:
Wang Jiangfeng;Zhao Pan;Niu Xiaoqiang;Dai Yiping
In order to utilize renewable energy to meet diverse energy requirements, a new combined cooling, heating and power (CCHP) system is proposed to produce cooling output, heating output and power output simultaneously. This proposed system combines a Brayton cycle and a transcritical CO2refrigeration cycle with ejector-expansion device, which uses solar energy as the heat source to reduce fossil fuel consumption and alleviate environmental problems. A mathematical model is developed to simulate the new CCHP system with transcritical CO2driven by solar energy under steady-state conditions, and the thermal efficiency and exergy efficiency are used to evaluate the system performance. The effects of several key thermodynamic parameters on the system performance are examined. The results indicate that increasing turbine inlet pressure and ejector inlet temperature could lower the efficiency of the system, and increasing turbine back pressure and turbine inlet temperature could elevate the efficiency of system. In addition, as ejector back pressure increases, the thermal efficiency of system decreases, but the exergy efficiency increases.
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影响因子:
9
作者:
J. Sarkar
通讯作者:
J. Sarkar
DOI:
10.1016/0140-7007(94)90059-0
发表时间:
1994-06-01
期刊:
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
影响因子:
--
作者:
LORENTZEN, G
通讯作者:
LORENTZEN, G
影响因子:
6.4
作者:
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X. Kong;Ruzhu Wang;X. Huang
影响因子:
2.4
作者:
G. Dong;Sui Jun
通讯作者:
G. Dong;Sui Jun
DOI:
10.1115/es2009-90081
发表时间:
2009
期刊:
--
影响因子:
--
作者:
N. Fumo;L. Chamra;V. Bortone
通讯作者:
N. Fumo;L. Chamra;V. Bortone