Temperature-enthalpy/entropy charts of combined ejector-absorption cycle using NH3-H2O

Alexis, GK; Rogdakis, ED

dc.contributor.author	Alexis, GK	en
dc.contributor.author	Rogdakis, ED	en
dc.date.accessioned	2014-03-01T01:15:54Z
dc.date.available	2014-03-01T01:15:54Z
dc.date.issued	2000	en
dc.identifier.issn	0363-907X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13818
dc.subject	absorption	en
dc.subject	ejector	en
dc.subject	refrigeration	en
dc.subject	heat pump	en
dc.subject	shocking phenomena	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Nuclear Science & Technology	en
dc.title	Temperature-enthalpy/entropy charts of combined ejector-absorption cycle using NH3-H2O	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/(SICI)1099-114X(200005)24:6<475::AID-ER594>3.0.CO;2-K	en
heal.identifier.secondary	http://dx.doi.org/10.1002/(SICI)1099-114X(200005)24:6<475::AID-ER594>3.0.CO;2-K	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	This paper describes the performance of an ammonia-water combine ejector-absorption cycle as refrigerator and heat pump. This combination brings together the advantages of absorption and ejector systems. Also, thermodynamic cycles on the temperature-enthalpy and temperature-entropy charts are shown. The thermodynamics of the combined ejector-absorption cycles are simulated by a suitable method and a corresponding computer code, based on analytic functions describing the behaviour of the binary mixture NH3-H2O. It is found that in the case of the refrigerator and heat pump, the theoretical coefficient of performance (COP) or the theoretical heat gain factor (HGF) vary from 1.6 to 90.4 per cent and 0.7 to 37.6 per cent, greater than those of the conventional absorption system, respectively. The operation conditions were: generator temperature (205.5 to 237.1 degrees C), condenser temperature (25.9 to 37.4 degrees C) and evaporator temperature (-8.4 to 5 degrees C). Copyright (C) 2000 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	INTERNATIONAL JOURNAL OF ENERGY RESEARCH	en
dc.identifier.doi	10.1002/(SICI)1099-114X(200005)24:6<475::AID-ER594>3.0.CO;2-K	en
dc.identifier.isi	ISI:000086816400002	en
dc.identifier.volume	24	en
dc.identifier.issue	6	en
dc.identifier.spage	475	en
dc.identifier.epage	484	en