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RESEARCH PAPERS

Economic Feasibility and Performance Study of a Solar-Powered Absorption Cycle Using Some Aqueous Salt Solutions

[+] Author and Article Information
I. H. Malik, M. Altamush Siddiqui

Department of Mechanical Engineering, Aligarh Muslim University, Aligarh 202 002, India

J. Sol. Energy Eng 119(1), 31-34 (Feb 01, 1997) (4 pages) doi:10.1115/1.2871816 History: Received June 01, 1995; Revised June 16, 1996; Online February 14, 2008

Abstract

Economic analyses of solar collectors, for optimizing generator temperatures in the absorption cycle using aqueous solutions of LiBr, LiBr–ZnBr2 , LiBr–ZnBr2 LiCl, and LiBr–ZnCl2 –CaBr2 salts, have been carried out for a wide range of the operating conditions. Ordinary collectors with two glass covers and evacuated-tubular collectors have been selected as the sources of energy for providing hot liquid in the generator of the absorption cycle. Of the four solutions, as the working fluids in the absorption cycles, those having better coefficients of performance are the LiBr/H2 O at the low evaporator temperatures, and the (LiBr–ZnBr2 –LiCl)/H2 O as well as the (LiBr–ZnCl2 –CaBr2 )/H2 O at the high evaporator temperatures. Similarly, costs of the solar collectors are low, at low evaporation temperatures for the LiBr/H2 O and at high temperatures for the other two solutions; the (LiBr–ZnBr2 )/H2 O, on the other hand, have relatively low COP and high operating costs.

Copyright © 1997 by The American Society of Mechanical Engineers
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