Quantitative analysis of frosting characteristics at ultra-low temperatures under forced convection conditions

被引：22

作者：

Byun, Sungjoon ^{[1
]}

Jeong, Haijun ^{[1
]}

Hyeon, Seounghwan ^{[1
]}

Lee, Kwan-Soo ^{[1
]}

机构：

[1] Hanyang Univ, Sch Mech Engn, 222 Wangsimni Ro, Seoul 133791, South Korea

来源：

ENERGY AND BUILDINGS | 2021年 / 248卷

基金：

新加坡国家研究基金会;

关键词：

Frost; Frost growth behavior; Correlations; Ultra-low temperatures; HEAT-TRANSFER; THERMAL PERFORMANCE; CRYOGENIC SURFACES; DEPOSITION; GROWTH; DENSIFICATION; THICKNESS; FLOW;

D O I：

10.1016/j.enbuild.2021.111186

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The quantitative analysis of frosting characteristics was conducted at ultra-low temperatures under forced convection conditions, which may deepen the understanding of frosting mechanism on air source heat pump (ASHP). The frosting experiments were performed under various experimental conditions. The correlations for the frost thickness and density were proposed as functions of Reynolds and Fourier number, absolute humidity, and non-dimensional temperature. The frost layer growth behavior was predicted within 6% of the maximum error when the predicted data of the correlation and the testing data were compared. A parametric study was performed, and the effect of the frosting parameters on the frost layer growth was identified. Consequently, the frosting behavior on the devices that operate at ultra-low temperatures and forced convection conditions can be identified using the correlations proposed in this study. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：9

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