| Title |
Performance Evaluation of a Defrosting System Using the Condensation Heat of a Refrigerator in Cold Storage |
| Authors |
박천완(Chunwan Park) ; 이동규(Donggyu Lee) ; 임관빈(Kwanbin Im) ; 강채동(Chaedong Kang) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.2.072 |
| Keywords |
폐열 ; 제상 ; 상변화물질 ; 축열 ; 저온저장 Waste heat ; Defrost ; PCM ; Heat storage ; Cold storage |
| Abstract |
In a cold chain, the refrigerator is also employed for defrosting, by using an electric heater, which consumes 15% of the power for the system operation. In this study, the condensation heat of the refrigerant was suggested as the heat source of defrosting heat, instead of that from an electric defrost heater. The heat for defrosting was stored to a phase change material (PCM, NMP：52℃) in thermal storage, and was periodically supplied to the evaporator by a circulation loop of brine. As a result, a defrost time by the PCM was obtained that was less than or equal to that by the electric heater. Moreover, power consumption during defrosting was saved by up to 99% of that of the electric heater. |