Performance optimization of a two-circuit cycle with parallel evaporators for a domestic refrigerator-freezer
- Authors
- Yoon, Won Jae; Jung, Hae Won; Chung, Hyun Joon; Kim, Yongchan
- Issue Date
- 1월-2011
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Household refrigerator; Parallel flow; Cycle; Performance; Optimization
- Citation
- INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, v.34, no.1, pp.216 - 224
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
- Volume
- 34
- Number
- 1
- Start Page
- 216
- End Page
- 224
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/113370
- DOI
- 10.1016/j.ijrefrig.2010.09.008
- ISSN
- 0140-7007
- Abstract
- A two-circuit cycle with parallel evaporators (called a "parallel cycle") for a domestic refrigerator-freezer (RF) shows energy saving potential compared with a conventional cycle with a single loop or serial evaporators because of a low compression ratio in the fresh food compartment (R)-operation. The objective of this study is to investigate the effects of the refrigerant charge, R-capillary tube, and refrigerant recovery operation on the performance of a parallel cycle. In addition, design guidelines for the heat transfer area and air flow rate of an R-evaporator are proposed. When the parallel cycle was optimized in terms of the refrigerant charge and R-capillary tube diameter, the energy consumption was reduced by 7.8% over a bypass two-circuit cycle with the same RF platform. In addition, an additional energy saving of 1.8% was obtained by the optimization of the operating sequence and refrigerant recovery operation. (C) 2010 Elsevier Ltd and IIR. All rights reserved.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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