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Efficiency improvement of domestic refrigerators by condenser modification
KTH.
2012 (English)In: International Review of Mechanical Engineering, ISSN 1970-8734, Vol. 6, no 6, 1356-1360 p.Article in journal (Refereed) Published
Abstract [en]

A wire-on-tube condenser of a domestic refrigerator (model NST200, manufactured by Regnis Lanka Plc) was modified by adopting the condenser heat transfer model developed in previous studies. The modified condenser was tested and compared with the present condenser to assess the improvements in total heat transfer through the condenser and the mass of the condenser. Different values for refrigerant tube pitch, number of tubes, and number steel wires were used to arrive at the optimum combination of these variables. The selection of the optimum combination was done based on total heat transfer and mass. The modified condenser showed a significant improvement (33%) in heat transfer. The evaporator capacity increased by 14% whereas COP increased by 24%.

Place, publisher, year, edition, pages
2012. Vol. 6, no 6, 1356-1360 p.
Keyword [en]
COP, Domestic refrigerator, Heat transfer, Wire-on-tube condenser
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-108032Scopus ID: 2-s2.0-84869234502OAI: oai:DiVA.org:kth-108032DiVA: diva2:579451
Note

QC 20121220

Available from: 2012-12-20 Created: 2012-12-19 Last updated: 2013-01-14Bibliographically approved

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CiteExportLink to record
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