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http://dx.doi.org/10.3795/KSME-B.2011.35.7.743

Performance Evaluation of HFO-1234yf as a substitute for R-134a in a Household Freezer/Refrigerator  

Lee, Jang-Seok (HA Laboratory, LG Electronics Inc.)
Han, Jun-Soo (HA Laboratory, LG Electronics Inc.)
Lee, Myung-Ryul (HA Laboratory, LG Electronics Inc.)
Jeon, Si-Moon (HA Laboratory, LG Electronics Inc.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.7, 2011 , pp. 743-748 More about this Journal
Abstract
The performance of HFO-1234yf as a substitute for R-134a was evaluated in a household freezer/refrigerator. A series of tests such as 'refrigerant charging test, pull-down test, cooling speed test, and energy consumption test were carried out under the AHAM (Association of Home Appliance Manufacturers) standard. The results of a drop-in test were compared with those of a test conducted using R-134a. A test under a severe ambient air condition ($43^{\circ}C$) was also conducted. The result shows that the refrigeration cycle performance of HFO-1234yf is as good as that of R-134a ; however, the diameter of capillary tube should be increased in order to improve its performance in the cooling speed test.
Keywords
Household Freezer/Refrigerator; System Characteristic; Alternative Refrigerant;
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