Selection of working fluids for a novel low-temperature geothermally-powered ORC based cogeneration system
Selection of working fluids for a novel low-temperature geothermally-powered ORC based cogeneration system
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基于 ORC 的新型低温热电联产系统工作流体的选择
DOI：
10.1016/j.enconman.2010.12.038
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发表时间：
2011-06
影响因子：
10.4
通讯作者：
Zhang, S. J.
中科院分区：
文献类型：
--
作者：
Guo, T.;Wang, H. X.;Zhang, S. J.
A novel cogeneration system driven by low-temperature geothermal sources was investigated in this study. This system consists of a low-temperature geothermally-powered organic Rankine cycle (ORC) subsystem, an intermediate heat exchanger and a commercial R134a-based heat pump subsystem. The main purpose is to identify appropriate fluids which may yield high PPR (the ratio of power produced by the power generation subsystem to power consumed by the heat pump subsystem) value and QQR (the ratio of heat supplied to the user to heat produced by the geothermal source) value. Performances of the novel cogeneration system under disturbance conditions have also been studied. Results indicate that fluids group presenting higher normal boiling point values shows averagely 7.7% higher PPR values and R236ea and R245ca outstand among the group. ΔTP(pinch temperature difference in heat exchangers) and ηt(turbine efficiency) values play more important roles on the variation of PPR values. QQR values change slightly with various ΔTP, ηtand ηrp(refrigerant pump efficiency) values while the variation range is larger under various geothermal source and heating supply parameters. Smaller ΔTPvalue, higher ηtvalue, higher geothermal source parameters and lower heating supply parameters lead to higher PPR values but lower QQR values.
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影响因子：
4.6
作者：
Xin‐Rong Zhang;H. Yamaguchi;K. Fujima;Masatoshi Enomoto;N. Sawada
通讯作者：
Xin‐Rong Zhang;H. Yamaguchi;K. Fujima;Masatoshi Enomoto;N. Sawada
影响因子：
10.4
作者：
Z. Gu;Haruki Sato
通讯作者：
Z. Gu;Haruki Sato
影响因子：
8.7
作者：
Xin‐Rong Zhang;H. Yamaguchi;D. Uneno;K. Fujima;M. Enomoto;N. Sawada
通讯作者：
Xin‐Rong Zhang;H. Yamaguchi;D. Uneno;K. Fujima;M. Enomoto;N. Sawada
影响因子：
10.4
作者：
W. R. Wagar;C. Zamfirescu;I. Dincer
通讯作者：
W. R. Wagar;C. Zamfirescu;I. Dincer
影响因子：
10.4
作者：
U. Desideri;G. Bidini
通讯作者：
U. Desideri;G. Bidini