Effect of the interface heat exchanger in composite NH3/H2OH2O/LiBr absorption-refrigeration systems

Rogdakis, ED; Antonopoulos, KA

dc.contributor.author	Rogdakis, ED	en
dc.contributor.author	Antonopoulos, KA	en
dc.date.accessioned	2014-03-01T01:08:21Z
dc.date.available	2014-03-01T01:08:21Z
dc.date.issued	1991	en
dc.identifier.issn	0890-4332	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10424
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026386131&partnerID=40&md5=34b9b4af2a6dd64b359d09165bca5c57	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Heat Exchangers	en
dc.subject.other	Refrigeration - Thermodynamics	en
dc.subject.other	Coefficient of Performance	en
dc.subject.other	Interface Heat Exchangers	en
dc.subject.other	Refrigerating Machinery	en
dc.title	Effect of the interface heat exchanger in composite NH3/H2OH2O/LiBr absorption-refrigeration systems	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	In previous publications, a high-efficiency, composite absorption-refrigeration system has been proposed, which was composed of two co-operating absorption units using NH3/H2O and H2O/LiBr solutions, respectively. The heat output from the NH3/H2O unit was employed to drive the H2O/LiBr unit. In the present work, the real performance of the system is predicted and the effect of the heat exchangers connecting the two co-operating units is examined. Under certain assumptions, the real coefficient of performance and other characteristics of the system are expressed in terms of the ambient temperature and the effectiveness, ε{lunate} of the interface heat exchanger. It is found that the effect of the latter is considerable, being more pronounced at the higher values of ε{lunate}. For example, a system operating under usual conditions at 25°C ambient temperature, obtains a theoretical performance coefficient ranging from 108 to 209% for ε{lunate} ranging from 40% to its theoretical value of 100%. © 1991.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Heat Recovery Systems and CHP	en
dc.identifier.isi	ISI:A1991GY73800004	en
dc.identifier.volume	11	en
dc.identifier.issue	6	en
dc.identifier.spage	495	en
dc.identifier.epage	504	en