Performance of a domestic refrigerator under influence of varied expansion device capacity, refrigerant charge and ambient temperature
2006 (English)In: International journal of refrigeration, ISSN 0140-7007, E-ISSN 1879-2081, Vol. 29, no 5, 789-798 p.Article in journal (Refereed) Published
This paper reports experimental results of an on/off cycling domestic refrigerator at varied expansion device capacity (EDC), quantity of charge and ambient temperature. It was found that the energy consumption is insensitive to varied EDC and charge within a wide range of settings. For the charge this is explained by the low side accumulator, which buffers over- and undercharge. It was also found that the optimum charge increased at lower ambient temperature. The paper describes an experimental procedure on how to determine the capillary tube length and the quantity of charge for a domestic refrigerator/freezer. This procedure is recommended since it takes different thermal masses and loads into consideration and since the potential for energy saving with a more sophisticated method appears to be limited.
Place, publisher, year, edition, pages
2006. Vol. 29, no 5, 789-798 p.
domestic refrigerator, experiment, performance, parameter, thermostatic expansion device, refrigerant charge, temperature, capillary-tube flow, mass charge, dynamic simulation, cycling losses, part ii, model, freezer
IdentifiersURN: urn:nbn:se:kth:diva-15825DOI: 10.1016/j.ijrefrig.2005.11.008ISI: 000238810800012ScopusID: 2-s2.0-33744939982OAI: oai:DiVA.org:kth-15825DiVA: diva2:333867
QC 201005252010-08-052010-08-052012-04-11Bibliographically approved