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Titolo:
Performance of solar driven methanol-water combined ejector-absorption cycle in the Athens area
Autore:
Alexis, GK; Rogdakis, ED;
Indirizzi:
Natl Tech Univ Athens, Dept Engn Mech, Thermal Sect, Athens 15780, Greece Natl Tech Univ Athens Athens Greece 15780 mal Sect, Athens 15780, Greece
Titolo Testata:
RENEWABLE ENERGY
fascicolo: 2, volume: 25, anno: 2002,
pagine: 249 - 266
SICI:
0960-1481(200202)25:2<249:POSDMC>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Keywords:
ejector; absorption; HGF; methanol-water mixture;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Rogdakis, ED Natl Tech Univ Athens, Dept Engn Mech, Thermal Sect, 9 HeroonPolytechniouAv,Zografou Campus, Athens 15780, Greece Natl Tech Univ Athens9 Heroon Polytechniou Av,Zografou Campus Athens Greece 15780
Citazione:
G.K. Alexis e E.D. Rogdakis, "Performance of solar driven methanol-water combined ejector-absorption cycle in the Athens area", RENEW ENERG, 25(2), 2002, pp. 249-266

Abstract

The performance of a solar driven CH4O-H2O combined ejector- absorption unit, operating in conjunction with intermediate temperature solar collectorsin Athens, is predicted along the five months (May-September) in case of the unit working as heat pump in an industrial area. The operation of the unit and the related thermodynamics are simulated by suitable computer codes and the required local climatological data are determined by statistical processings over a considerable number of years. It is found that the heat gain factor varies in the range from 2.1330 to 2.4481 for the above period oftime. The maximum HGF of about 2.4481 is obtained in July at 14.25 hrs with corresponding specific heat gain power 915 W/m(2) The maximum Q(gain) of about 1086 W/m(2) is obtained in June at 12.54 hrs with corresponding HGF 2.3572. Also the maximum value of HGF was estimated by correlation of three temperatures: generator temperature (85.0 degreesC-97.2 degreesC), condenser temperature (43.3 degreesC-47.6 degreesC) and evaporator temperature (12.6 degreesC-25.4 degreesC). (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 30/03/20 alle ore 12:36:27