eprintid: 2639
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/26/39
datestamp: 2023-11-09 15:50:52
lastmod: 2023-11-09 15:50:52
status_changed: 2023-11-09 15:43:57
type: article
metadata_visibility: show
creators_name: Ahmed, M.S.A.M.S.
creators_name: Ul-Haq Gilani, S.I.
title: Exergy analysis of a double-effect parallel-flow commercial steam absorption chiller
ispublished: pub
keywords: Absorption chillers; Coefficient of Performance; Component specification; Cooling Capacity; Double effects; Efficient formulation; Energy equation; Exergetic efficiency; Exergy Analysis; Exergy destructions; High temperature; High temperature solutions; Load factors; Model-based OPC; State points; Steam absorption; Working pair, Absorption cooling; Cooling systems; Parallel flow; Refrigerators; Specifications; Thermal load, Exergy
note: cited By 6
abstract: Exergy analysis of a double-effect parallel flow commercial absorption chiller is presented in this study. Generally a major obstacle for developing model of a commercial absorption chiller is lack of available component specifications. These specifications are commonly proprietary of the chillers manufacturers and normally the available information is not sufficient. This study presented a double-effect parallel-flow-type steam absorption chiller model based on mass and energy equations. The chiller studied is 1250 RT (Refrigeration Tons) using lithium bromide-water solution as working pair. For refrigerant and absorbent properties, set of efficient formulations are used. The model gives the required information about temperature, concentration, entropy, exergy and flow rate at each state point of the system. The model calculates the heat load at each component as well as the performance of the system. The profile of the exergy destructions for various components is plotted against the heat load in the range of 20-100 of cooling capacity. The results showed that the high temperature generator has the greatest exergy destruction followed by the absorber and high temperature solution heat exchanger. Further, it was found that the Coefficient of Performance (COP) increased with increasing with load factor. However, the exergetic efficiency was found to decrease while increasing the load factor. © 2012 Asian Network for Scientific Information.
date: 2012
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872322926&doi=10.3923%2fjas.2012.2580.2585&partnerID=40&md5=fdbd0ca967dfa674c1acc6af466bb8d0
id_number: 10.3923/jas.2012.2580.2585
full_text_status: none
publication: Journal of Applied Sciences
volume: 12
number: 24
pagerange: 2580-2585
refereed: TRUE
issn: 18125654
citation:   Ahmed, M.S.A.M.S. and Ul-Haq Gilani, S.I.  (2012) Exergy analysis of a double-effect parallel-flow commercial steam absorption chiller.  Journal of Applied Sciences, 12 (24).  pp. 2580-2585.  ISSN 18125654