Absorption panel cooling using a TFE-NMP mixture

Antonopoulos, KA

dc.contributor.author	Antonopoulos, KA	en
dc.date.accessioned	2014-03-01T01:08:38Z
dc.date.available	2014-03-01T01:08:38Z
dc.date.issued	1992	en
dc.identifier.issn	0890-4332	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10625
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026855646&partnerID=40&md5=b55f7a1084f80a0a6fffb04e08a36465	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	Buildings - Walls	en
dc.subject.other	Evaporators - Coolants	en
dc.subject.other	Evaporators - Thermodynamics	en
dc.subject.other	Refrigerants	en
dc.subject.other	Refrigerating Machinery - Absorption	en
dc.subject.other	Absorption Panel Cooling	en
dc.subject.other	Absorption Refrigeration Unit	en
dc.subject.other	Cooling Fluids	en
dc.subject.other	N Methylpyrrolidinone (NMP)	en
dc.subject.other	Trifluoroethanol (TFE)	en
dc.subject.other	Buildings	en
dc.title	Absorption panel cooling using a TFE-NMP mixture	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	A panel system for cooling buildings is proposed, working with an absorption-refrigeration unit, the evaporator of which is the panel itself. Trifluoroethanol (TFE) and N-methylpyrrolidinone (NMP) are proposed as refrigerant and absorbent, respectively. Use of the TFE-NMP mixture seems to offer advantages over the usual H2O-LiBr or NH3-H2O mixtures, and suits well the modest refrigeration temperatures needed in panel cooling. Analytical expressions are presented for the properties of the TFE-NMP mixture and a calculation procedure for NH3-H2O units is used after suitable modifications to simulate the operation of the TFE-NMP absorption-refrigeration unit. Under the conditions considered, the lowest evaporation temperature varies from 3 to 16-degrees-C, and the theoretical coefficient of performance from 60% to 68.4%, with its maximum value obtained at 9-degrees-C. Under the above conditions, for panel cooling power 50-150 W/m2, a refrigerant mass flow rate through the panel from 400 g/m2 h to 1600 g/m2 h is needed with a driving thermal power from 80 W/m2 to 220 W/m2.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Heat Recovery Systems and CHP	en
dc.identifier.isi	ISI:A1992JJ66400002	en
dc.identifier.volume	12	en
dc.identifier.issue	3	en
dc.identifier.spage	203	en
dc.identifier.epage	210	en