NDLI: Study of a Solar Booster Assisted Ejector Refrigeration System With R134a

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Herna´ndez, Jorge I. Claudio, A. Estrada Best, Roberto Dorantes, Rube´n J.
Copyright Year	2003
Abstract	A parametric study for a booster assisted ejector refrigeration system in steady state is carried out employing Lu’s ejector model in transition regime. The range of generator and condenser temperatures is considered for a solar powered system. Conceiving the ejector geometry, through the area ratio φ and the main throat area A, and the system behavior, through the energy efficiency COPs, the exergy efficiency εs and energy ratio Er, it was found that their extreme values, lowest for A and highest for the remainder, are reached at the highest generator temperature, TGE, and booster discharge pressure, pDIS, with the lowest condenser temperature, TCO, for the considered evaporator temperature, TEV, of −10°C. In regard to the ejector behavior, its maximum efficiency value, ηEJ, is reached for the highest TGE and the lowest TCO for an intermediate pDIS. If TCO is increased, the maximum ηEJ value is achieved at a higher pDIS. In spite of that the maximum ηEJ value is not reached at the highest pDIS, its influence is not reflected in system behavior because U always increases and its maximum value agrees with theory. The most important system and ejector parameters are presented as a reference.
Sponsorship	Solar Energy Division
Starting Page	343
Ending Page	350
Page Count	8
File Format	PDF
ISBN	0791836762
DOI	10.1115/ISEC2003-44242
e-ISBN	0791836649
Volume Number	Solar Energy
Conference Proceedings	ASME 2003 International Solar Energy Conference
Language	English
Publisher Date	2003-03-15
Publisher Place	Kohala Coast, Hawaii, USA
Access Restriction	Subscribed
Subject Keyword	Geometry Temperature Condensers (steam plant) Ejectors Solar energy Solar power Generators Energy efficiency Exergy Refrigeration Pressure Steady state
Content Type	Text
Resource Type	Article

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