Title: Performance analysis of the different Organic Rankine Cycles (ORCs) using dry fluids

Authors: M. Yari

Addresses: Faculty of Engineering, Department of Mechanical Engineering, University of Mohaghegh Ardabili, Ardabil 179, Iran

Abstract: This paper presents the first and second laws of thermodynamics analysis for organic Rankine cycles (ORCs), using dry organic fluids as the working fluids. The dry organic fluids for this study were R227ea, RC318, R236fa, Isobutane, R600a, R245fa, HFE7000, R123 and R113. Effects of the operating parameters such as turbine inlet temperature and pressure on the thermal efficiency, exergy destruction rate and second-law efficiency were evaluated. The ORCs studied in this paper were regenerative ORC with IHE, regenerative ORC, ORC with IHE and basic ORC.

Keywords: organic dry fluids; ORC; organic Rankine cycles; IHE; internal heat exchangers; second law; thermodynamics; exergy destruction rate.

DOI: 10.1504/IJEX.2009.025324

International Journal of Exergy, 2009 Vol.6 No.3, pp.323 - 342

Published online: 19 May 2009 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article