DSpace
 

EPrints@IIT Delhi >
Faculty Research Publicatons  >
Energy Studies [CES] >

Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1483

Full metadata record

DC FieldValueLanguage
dc.contributor.authorBhardwaj, Pramod Kumar-
dc.contributor.authorKaushik, S C-
dc.contributor.authorJain, Sanjeev-
dc.date.accessioned2006-03-21T12:52:28Z-
dc.date.available2006-03-21T12:52:28Z-
dc.date.issued2005-
dc.identifier.citationInternational Journal of Thermal Sciences, 44(2), 189-196en
dc.identifier.urihttp://eprint.iitd.ac.in/dspace/handle/2074/1483-
dc.description.abstractThis communication presents finite time thermodynamic analysis of vapour absorption refrigeration system considering both external as well as internal irreversibility. System is considered as consisting of an irreversible heat engine between the generator and absorber and an irreversible refrigerator between the evaporator and condenser. Optimization is made w.r.t. source/sink side heat exchanger areas, source/sink side heat transfer time and heat engine cycle and refrigeration cycle time. An optimal relation between overall coefficient of performance and maximum cooling load is obtained. Two internal irreversibility parameters (say, RΔS is for generator–absorber assembly and is for evaporator–condenser assembly) have been introduced in the analysis, having fractional value for irreversible (real) system while corresponds to endoreversible system. A detailed parametric study shows that internal irreversibility parameters have more drastic effect on performance reduction than any other external irreversibility parameter. It is also found that internal irreversibility parameters are being dominant factor for performance reduction but out of these two parameters, internal irreversibility parameter of generator–absorber assembly is more sensitive for performance reduction than the internal irreversibility parameter of evaporator–condenser assembly. This communication presents finite time thermodynamic analysis of vapour absorption refrigeration system considering both external as well as internal irreversibility. System is considered as consisting of an irreversible heat engine between the generator and absorber and an irreversible refrigerator between the evaporator and condenser. Optimization is made w.r.t. source/sink side heat exchanger areas, source/sink side heat transfer time and heat engine cycle and refrigeration cycle time. An optimal relation between overall coefficient of performance and maximum cooling load is obtained. Two internal irreversibility parameters (say, RΔS is for generator–absorber assembly and is for evaporator–condenser assembly) have been introduced in the analysis, having fractional value for irreversible (real) system while corresponds to endoreversible system. A detailed parametric study shows that internal irreversibility parameters have more drastic effect on performance reduction than any other external irreversibility parameter. It is also found that internal irreversibility parameters are being dominant factor for performance reduction but out of these two parameters, internal irreversibility parameter of generator–absorber assembly is more sensitive for performance reduction than the internal irreversibility parameter of evaporator–condenser assembly.en
dc.format.extent402199 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.subjectFinite time thermodynamicsen
dc.subjectVapour absorption refrigeration systemen
dc.subjectExternal and internal irreversibilityen
dc.subjectOptimal area distributionen
dc.subjectOptimal cycle time distributionen
dc.titleGeneral performance characteristics of an irreversible vapour absorption refrigeration system using finite time thermodynamic approachen
dc.typeArticleen
Appears in Collections:Energy Studies [CES]

Files in This Item:

File Description SizeFormat
bhardwajgen2005.pdf392.77 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback