Comparative performance analysis of low-temperature Organic Rankine Cycle (ORC) using pure and zeotropic working fluids

被引：145

作者：

Aghahosseini, S. ^{[1
]}

Dincer, I. ^{[1
]}

机构：

[1] Univ Ontario Inst Technol, Fac Engn & Appl Sci, Oshawa, ON L1H 74K, Canada

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 54卷 / 01期

关键词：

Organic Rankine Cycle; Exergy; Energy efficiency; Zeotropic mixture; Irreversibility; CO2; emission; WASTE HEAT-RECOVERY; POWER-PLANTS; DESIGN; SELECTION; MIXTURES; CRITERIA;

D O I：

10.1016/j.applthermaleng.2013.01.028

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, a comprehensive thermodynamic analysis of the low-grade heat source Organic Rankine Cycle (ORC) is conducted and the cycle performance is analyzed and compared for different pure and zeotropic-mixture working fluids. The comparative performance evaluation of the cycle using a combined energy and exergy analysis is carried out by sensitivity assessment of the cycle certain operating parameters such as efficiency, flow rate, irreversibility, and heat input requirement at various temperatures and pressures. The environmental characteristics of the working fluids such as toxicity, flammability, ODP and GWP are studied and the cycle CO2 emission is compared with different fuel combustion systems. R123, R245fa, R600a, R134a, R407c, and R404a are considered as the potential working fluids. Results from this analysis provide valuable insight into selection of the most suitable working fluids for power generating application at different operating conditions with a minimal environmental impact. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：35 / 42

页数：8

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