Experimental study of a novel cool-storage refrigerator with controllable two-phase loop thermosyphon
| Autor: | Weixin Liu, Chuxiong Chen, Wei Ren, Gang Pei, Jingyu Cao, Dongsheng Jiao, Lijun Wu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Temperature control
Materials science 020209 energy Mechanical Engineering Phase (waves) Refrigerator car 02 engineering and technology Building and Construction Thermal energy storage Cool storage Phase-change material Loop (topology) 020401 chemical engineering Control theory 0202 electrical engineering electronic engineering information engineering Thermosiphon 0204 chemical engineering |
| Zdroj: | International Journal of Refrigeration. 129:32-42 |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2021.04.009 |
| Popis: | Cool storage has been considering an efficient and cost-effective means to enhance the behavior of a refrigerator. However, its drawback in temperature control of the refrigerator compartment has not received enough attention. The controllable two-phase loop thermosyphon has the prospect of solving this problem. In this study, a novel cool-storage refrigerator integrated with a controllable two-phase loop thermosyphon is built to investigate its precise temperature control capacity. The phase change material is optimized by the orthogonal experiment method. The controllable two-phase loop thermosyphon presents the optimal cooling performance for the fresh food compartment when the filling ratio is 27.0%. As the average temperature of the fresh food compartment increases, the one on–off cycle of the controllable two-phase loop thermosyphon maintains at 32.0 min, and the operation ratio varies from 86.3% to 13.6%. The temperature control accuracy can be improved from 2.1 °C to 0.6 °C and the overall time of one on-off cycle decreases from 49.8 min to 22.4 min. The operation ratio gradually increases from 7.2% to 38.6% as the ambient temperatures increase. The results demonstrate that the controllable two-phase loop thermosyphon is a feasible and effective way to improve the temperature control performance of the cool-storage refrigerator. |
| Databáze: | OpenAIRE |
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