Absorption panel cooling using a TFE-NMP mixture

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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.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

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