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Adaptive defrost methods for improving defrosting efficiency of household refrigerator

机译：改善家用冰箱除霜效率的自适应除霜方法

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摘要

The defrosting method of the conventional household refrigerator increases freezer temperature during the defrosting operation, and defrosting efficiency reduces because the heater consumes more power than the amount of frost on the surface of the heat exchanger. To solve this problem, three defrost heater control methods, applicable to refrigerators equipped with conduction and radiation heaters, are being proposed. The control methods were classified as a method of simultaneously pulsating two heaters, method of individually pulsating two heaters, and method of step-by-step reduction of radiation heater power. The operation effect of each heater on freezer temperature was analyzed. For the three methods, a heater control optimization process was performed to reduce the temperature increase in the freezer. The power consumed by the heater was minimized and defrosting efficiency improved. The Best performance was observed when two heaters pulsated individually. For this method, the variation in freezer temperature, between before and after the defrost process, was reduced from approximately 11 degrees C to 5 degrees C. Additionally, the defrosting efficiency improved by 15%.
机译：传统的家用冰箱的除霜方法在除霜操作期间提高了冰箱的温度，并且除霜效率降低，这是因为加热器消耗的功率大于热交换器表面上的霜量。为了解决这个问题，提出了三种适用于装有传导加热器和辐射加热器的冰箱的除霜加热器控制方法。控制方法分为同时使两个加热器脉动的方法，使两个加热器单独脉动的方法以及逐步降低辐射加热器功率的方法。分析了每个加热器对冰箱温度的影响。对于这三种方法，执行了加热器控制优化过程以减少冰箱中的温度升高。加热器消耗的功率最小，除霜效率提高。当两个加热器单独跳动时，观察到最佳性能。对于该方法，在除霜过程之前和之后的冷冻室温度变化从大约11摄氏度降低到5摄氏度。此外，除霜效率提高了15％。

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  • 来源
    《Energy Conversion & Management》 |2018年第2期|511-516|共6页
  • 作者

    Yoon Youngchan; Jeong Haijun; Lee Kwan-Soo;

  • 作者单位

    Hanyang Univ, Sch Mech Engn, 222 Wangsimni Ro, Seoul 04763, South Korea;

    Hanyang Univ, Sch Mech Engn, 222 Wangsimni Ro, Seoul 04763, South Korea;

    Hanyang Univ, Sch Mech Engn, 222 Wangsimni Ro, Seoul 04763, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Defrost; Heater; Refrigerator; Efficiency;

    机译：除霜;加热器;冰箱;效率;

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