Refrigerant mass charge distribution in a domestic refrigerator. Part II: Steady state conditions
2006 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 26, no 8-9, 866-871 p.Article in journal (Refereed) Published
Experimental results are presented of the refrigerant mass charge distribution in a steady state operating domestic refrigerator at varied thermal loads. It was found that the charge decreased in the evaporator and increased in the condenser and compressor upon increased thermal load. No subcooling or superheat was observed over the range of capacities tested (74-145 W). The combination of a low side accumulator and an expansion device with high capacity (short capillary tube) explained this. The study suggests that a capillary tube throttled cooling system, with a floating condensation temperature, can handle large load variations without becoming destabilised (superheat or subcooling) just like a more sophisticated thermostatic expansion device control system.
Place, publisher, year, edition, pages
2006. Vol. 26, no 8-9, 866-871 p.
domestic refrigerator, charge inventory, capillary tube, capillary-tube flow, dynamic simulation, cycling losses, freezer, model
IdentifiersURN: urn:nbn:se:kth:diva-15552DOI: 10.1016/j.applthermaleng.2005.10.004ISI: 000236308200012ScopusID: 2-s2.0-29244461751OAI: oai:DiVA.org:kth-15552DiVA: diva2:333593
QC 201005252010-08-052010-08-052012-04-11Bibliographically approved