Experimental study on new type of defrosting system using outdoor air for frost-free household refrigerators

被引：15

作者：

Liu, Zhongbao ^{[1
,2
]}

Gao, Wenqi ^{[1
]}

Lang, Huiwei ^{[1
]}

Chi, Yuanying ^{[2
]}

机构：

[1] Beijing Univ Technol, Coll Environm & Energy Engn, Dept Refrigerat & Cryogen Engn, 100 Pingleyuan Rd, Beijing 100124, Peoples R China

[2] Beijing Univ Technol, Beijing Adv Innovat Ctr Future Internet Technol, 100 Pingleyuan Rd, Beijing 100124, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2018年 / 134卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Defrosting; Outdoor air; Frost-free; Household refrigerator; Defrosting time; Defrost power consumption;

D O I：

10.1016/j.applthermaleng.2018.02.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Air-cooled frost-free household refrigerators have become popular in the market because of their large storage volume and frost-free compartments. However, the large amount of power consumed by the defrosting process of the evaporator restricts the widespread application of such refrigerators. In this study, a new type of defrosting system using outdoor air (DSUOA) is developed. The operation modes (refrigeration and defrosting cycles) of the overall system are proposed. An experimental prototype is built, and an experimental study is conducted for different temperature ranges (12-22 degrees C, 22-45 degrees C, and 0-12 degrees C). Results show that the power consumption of DSUOA is 77.6-98.2% less than that of the electric heater defrosting system under a similar defrosting time.

引用

页码：256 / 265

页数：10

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