Investigation of a two stage Rankine cycle for electric power plants

被引：61
|
作者：
Liu, Bo [1 ,3 ]
Riviere, Philippe [1 ]
Coquelet, Christophe [2 ]
Gicquel, Renaud [1 ]
David, Franck [3 ]
机构：
[1] Mines Paristech, Ctr Energet & Procedes, F-75272 Paris 06, France
[2] Mines Paristech, CEP TEP, F-77305 Fontainebleau, France
[3] EDF R&D, F-78401 Chatou, France
来源：
APPLIED ENERGY | 2012年 / 100卷
关键词：
Power plant; Thermal performance; Two stage cycle; Working fluids; Optimization; Organic Rankine Cycle (ORC); WORKING FLUIDS; OPTIMIZATION; ORC;
D O I：
10.1016/j.apenergy.2012.05.044
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A two stage Rankine cycle for power generation is presented in this paper. It is made of a water steam Rankine cycle and an Organic Rankine bottoming Cycle. By using an organic working fluid with higher density than water, it is possible to reduce the installation size and to use an air-cooled condenser. In order to search suitable working fluids for our application, nine potential candidates from four different organic fluid families and ammonia are tested. The performances of the two stage Rankine cycle operating with those different working fluids are evaluated. The influences of design external temperatures and the steam turbine outlet pressure on the system are analyzed. Optimal points are found at different cold source temperatures and steam turbine outlet pressures for each fluid. System efficiency can also be enhanced by introducing a regenerator for some of the selected working fluids. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：285 / 294
页数：10
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