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闪蒸-双工质联合发电系统热力性能比较
Alternative TitleThermal performance comparison of flash-binary power system
罗珂1,2,3; 骆超1,2; 龚宇烈1,2
2017-04
Source Publication化工进展
ISSN1000-6613
Volume36Issue:4Pages:1521-1528
Abstract为了筛选出适宜于闪蒸-双工质联合发电系统的循环工质,建立了闪蒸-双工质联合发电系统的热力学模型。在这个计算模型中,采用热水温度范围为100-150℃,热水流量取为36t/h,冷却水进口温度设定为15℃。以单位热水净发电量、热效率、[火用]效率和系统不可逆损失作为联合系统性能的评价指标,研究5种有机工质(R236fa、R600a、R600、R245fa、R601a)的运行参数,比较不同地热流体温度条件下这5种有机工质的做功能力,确立了联合发电系统的最佳循环工质。研究结果表明:联合系统的净发电量随着闪蒸温度的增加呈先增大后减小的趋势,每种工质都有一个最佳的闪蒸温度使得联合系统的单位热水净发电量达到最大;综合考虑这5种工质的环保性能和热力学性能,工质R245fa是综合性能最好的工质,可作为闪蒸-双工质联合发电系统的有机工质。
Other AbstractTo select a suitable working fluid for flash-binary power system (FBPS), a thermodynamic model for FBPS was established. In this calculation, the heat source temperature of the FBPS is 100-150℃ with a flow rate of 36t/h and cooling water inlet temperature is 15℃. Five organic working fluids (R236fa, R600a, R600, R245fa, R601a) were selected to analyze their work capacity based on the performance index of net power output per ton of geofluid, thermal efficiency, exergy efficiency and irreversible loss of the system. Finally, the best working fluid was determined. Results showed that the net power output of FBPS increases with the increase of flash temperature and then decreases. Each working fluid has an optimum flash temperature which makes the net power output to be maximum. Taking environmental and thermodynamic performance into consideration, R245fa is the best working fluid for the flash-binary power system.
Keyword闪蒸-双工质联合发电 工质选择 最佳闪蒸温度 热效率 ?效率 flash-binary power system working fluid selection optimal flash temperature thermal efficiency exergy efficiency
DOI10.16085/j.issn.1000-6613.2017.04.048
Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16652
Collection中国科学院广州能源研究所
Corresponding Author龚宇烈
Affiliation1.中国科学院广州能源研究所可再生能源重点实验室,广东广州510640;
2.广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640;
3.中国科学院大学,北京100049
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
罗珂,骆超,龚宇烈. 闪蒸-双工质联合发电系统热力性能比较[J]. 化工进展,2017,36(4):1521-1528.
APA 罗珂,骆超,&龚宇烈.(2017).闪蒸-双工质联合发电系统热力性能比较.化工进展,36(4),1521-1528.
MLA 罗珂,et al."闪蒸-双工质联合发电系统热力性能比较".化工进展 36.4(2017):1521-1528.
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