Next Article in Journal
A Practical Protection Coordination Strategy Applied to Secondary and Facility Microgrids
Next Article in Special Issue
Kinetic Study of the Pyrolysis of Waste Printed Circuit Boards Subject to Conventional and Microwave Heating
Previous Article in Journal
Impacts of Ventilation Ratio and Vent Balance on Cooling Load and Air Flow of Naturally Ventilated Attics
Previous Article in Special Issue
An Analysis of the Use of Biosludge as an Energy Source and Its Environmental Benefits in Taiwan
Energies 2012, 5(9), 3233-3247; doi:10.3390/en5093233
Article

Performance Analysis and Working Fluid Selection of a Supercritical Organic Rankine Cycle for Low Grade Waste Heat Recovery

* ,
,
,
,
 and
Received: 10 July 2012; in revised form: 15 August 2012 / Accepted: 23 August 2012 / Published: 30 August 2012
(This article belongs to the Special Issue Waste to Energy Technologies)
Download PDF [437 KB, uploaded 30 August 2012]
Abstract: The performance analysis of a supercritical organic Rankine cycle system driven by exhaust heat using 18 organic working fluids is presented. Several parameters, such as the net power output, exergy efficiency, expander size parameter (SP), and heat exchanger requirement of evaporator and the condenser, were used to evaluate the performance of this recovery cycle and screen the working fluids. The results reveal that in most cases, raising the expander inlet temperature is helpful to improve the net power output and the exergy efficiency. However, the effect of the expander inlet pressure on those parameters is related to the expander inlet temperature and working fluid used. Either lower expander inlet temperature and pressure, or higher expander inlet temperature and pressure, generally makes the net power output more. Lower expander inlet temperature results in larger total heat transfer requirement and expander size. According to the screening criteria of both the higher output and the lower investment, the following working fluids for the supercritical ORC system are recommended: R152a and R143a.
Keywords: supercritical organic Rankine cycle; net power output; exergy efficiency; expander size parameter supercritical organic Rankine cycle; net power output; exergy efficiency; expander size parameter
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Gao, H.; Liu, C.; He, C.; Xu, X.; Wu, S.; Li, Y. Performance Analysis and Working Fluid Selection of a Supercritical Organic Rankine Cycle for Low Grade Waste Heat Recovery. Energies 2012, 5, 3233-3247.

AMA Style

Gao H, Liu C, He C, Xu X, Wu S, Li Y. Performance Analysis and Working Fluid Selection of a Supercritical Organic Rankine Cycle for Low Grade Waste Heat Recovery. Energies. 2012; 5(9):3233-3247.

Chicago/Turabian Style

Gao, Hong; Liu, Chao; He, Chao; Xu, Xiaoxiao; Wu, Shuangying; Li, Yourong. 2012. "Performance Analysis and Working Fluid Selection of a Supercritical Organic Rankine Cycle for Low Grade Waste Heat Recovery." Energies 5, no. 9: 3233-3247.


Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert