%K Absorption cooling; Cogeneration plants; Refrigerators; Steam; Steam generators; Waste heat; Water absorption, Absorption chillers; Double effect absorption chillers; Heat recovery steam generators; Operation and maintenance; Operation period; Replacement analysis; Steam absorption; Zero-order models, Cooling systems
%J MATEC Web of Conferences
%X Absorption chillers at cogeneration plants generate chilled water using steam supplied by heat recovery steam generators. The chillers are mainly of double effect type. The COP of double effect varies from 0.7 to 1.2 depending on operation and maintenance practices of the chillers. Heat input to the chillers during operations could have impact on the COP of the chillers. This study is on relative COP changes with increasing the heat input temperatures for a steam absorption chiller at a gas fueled cogeneration plant. Reversible COP analysis and zero order model were used for evaluating COP of the chiller for 118 days operation period. Results indicate increasing COP trends for both the reversible COP and zero model COP. Although the zero model COP are within the range of double effect absorption chiller, it is not so for the actual COP. The actual COP is below the range of normal double effect COP. It is recommended that economic replacement analysis to be undertaken to assess the feasibility either to repair or replace the existing absorption chiller. © Owned by the authors, published by EDP Sciences, 2016.
%L scholars7255
%I EDP Sciences
%A M.A.A. Majid
%A A. Nordin
%R 10.1051/matecconf/20163801009
%O cited By 2; Conference of UTP-UMP Symposium on Energy Systems 2015, SES 2015 ; Conference Date: 7 October 2015; Conference Code:121434
%V 38
%T Study on relative COP changes with increasing heat input temperatures of double effect steam absorption chillers
%D 2016