| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7175184 | International Journal of Refrigeration | 2018 | 23 Pages |
Abstract
This paper presents the theoretical analysis of the influence of an internal heat exchanger (IHX) position, on an ejection-compression refrigeration system. The energy and the exergy performance are discussed by placing an IHX in two different positions: 1) Promoting the superheating in the compressor suction EC+IHX-1 and 2) promoting superheating in the suction nozzle EC+IHX-2, which is a novel configuration proposal. Both configurations are compared under air climatization conditions using the refrigerants R134a, R1234ze(E) and R290. The results show that the exergy efficiency is higher when EC+IHX-2 is used for an IHX effectiveness below 60%, and lower irreversibilities occur in the ejector with this configuration for an effectiveness value of IHX below 40%. In both cases, IHX presence promotes a decrease in the coefficient of performance.
Keywords
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
J.L. RodrÃguez-Muñoz, V. Pérez-GarcÃa, J.M. Belman-Flores, J.F. Ituna-Yudonago, A. Gallegos-Muñoz,