Comparative study of working fluids for a Rankine cycle operating at low temperature

被引：23

作者：

Velez, Fredy ^{[2
]}

Segovia, Jose J. ^{[1
]}

Carmen Martin, M. ^{[1
]}

Antolin, Gregorio ^{[2
]}

Chejne, Farid ^{[3
]}

Quijano, Ana ^{[2
]}

机构：

[1] Univ Valladolid, Dept Ingn Energet & Fluidomecan, Valladolid, Spain

[2] CARTIF Ctr Tecnol, Valladolid 47151, Spain

[3] Univ Nacl Colombia, Grp Termodinam Aplicada & Energias Alternat TAYEA, Fac Minas, Medellin, Colombia

来源：

FUEL PROCESSING TECHNOLOGY | 2012年 / 103卷

关键词：

Energy efficiency; Organic Rankine cycle; Power generation; Waste heat; Renewable energy; POWER-PLANTS; HEAT-SOURCE; WASTE HEAT; GENERATION; SELECTION; RECOVERY; BIOMASS; ENGINE; FUELS;

D O I：

10.1016/j.fuproc.2011.09.017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The main results of a thermodynamic study on the use of a low temperature heat source (150 degrees C as maximum) for power generation through a basic Rankine are reported in this paper. Different working fluids such as water and some hydrocarbons and coolants are studied. The procedure consisted in modifying the input pressure and temperature to the turbine. The efficiency for these fluids is a weak function of temperature, i.e., overheating the inlet fluid to the turbine does not cause a significant change in the efficiency. However, when the pressure ratio in the turbine increases, much larger values of efficiency are obtained, and also, as the input temperature to the turbine rises, the efficiency increases more sharply. As result, a maximum efficiency of 9% was obtained. It is shown the technical viability of implementing this type of process for recovering residual wastes for very low temperature, as well as an energy alternative and/or strengthener of non-conventional energy sources in non-provided zones. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：71 / 77

页数：7

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