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Simulating and Conducting a Comparative Analysis of Thermal Management in Refrigerators Using Phase Change Materials during Power Outages
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  • Chandrashekara M,
  • Rohon Barnwal,
  • Neeraj Mehla,
  • Dinesh Kumar Saini
Chandrashekara M
National Institute of Technology Kurukshetra

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Rohon Barnwal
National Institute of Technology Kurukshetra
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Neeraj Mehla
National Institute of Technology Kurukshetra
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Dinesh Kumar Saini
National Institute of Technology Kurukshetra
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Abstract

In this study, the benefit of phase change materials (PCMs) in maintaining the temperature range of a refrigerator during a power outage was investigated. It aims to analyze temperature fluctuations during power cuts in domestic refrigerators with a multi-PCM system and compare the results with that of a model without PCM. The PCM was clad in different refrigerator sections, and the system was simulated and analyzed for temperature range in different sections. Ethylene glycol, eutectic mixture, and n-tetradecane were clad in freezers and mid-compartments. It was observed that the temperature was maintained within the operating range after different time steps. It was seen that the temperature saturated to 299K throughout the refrigerator in 600 seconds. However, with the PCM, the temperature in the evaporator was 268.75K; in the mid compartment, it was 279.56K; in the chiller, it was 289K after 200 seconds. Similarly, after 600 seconds, the temperature was 268.5K in the evaporator, 280K in the mid compartment, and 290K in the chiller. Therefore, it is evident that PCMs are effective for maintaining the refrigerator’s temperature range during power cuts.