%D 2014
%R 10.1051/matecconf/20141305003
%O cited By 3; Conference of 4th International Conference on Production, Energy and Reliability, ICPER 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:106620
%J MATEC Web of Conferences
%L scholars5065
%K Absorption cooling; Cogeneration plants; Refrigerators; Regression analysis; Waste heat, Absorption chillers; Chilled water; Coefficient of Performance; Double effects; Heat recovery steam generators; Operations and maintenance; Regression model; Steam absorption, Cooling systems
%X Absorption chillers at cogeneration plants generate chilled water using steam supplied by heat recovery steam generators. The chillers can be of either single-effect or double effect configuration and the coefficient of performance (COP) depends on the selection made. The COP varies from 0.7 to 1.2 depending on the types of chillers. Single effect chillers normally have COP in the range of 0.68 to 0.79. Double effect chillers COP are higher and can reach 1.2. However due to factors such as inappropriate operations and maintenance practices, COP could drop over a period of time. In this work the performances of double effect steam absorption chillers at a cogeneration plant were studied. The study revealed that during the period of eleven years of operation the COP of the chillers deteriorated from 1.25 to 0.6. Regression models on the operation data indicated that the state of deterioration was projected to persist. Hence, it would be recommended that the chillers be considered for replacement since they had already undergone a series of costly repairs. © 2014 Owned by the authors, published by EDP Sciences.
%C Kuala Lumpur
%T Studies on steam absorption chillers performance at a cogeneration plant
%A M.A.A. Majid
%A S.A. Sulaiman
%A T. Fujii
%A Naono
%I EDP Sciences
%V 13