Analysis of frost visualization over a fin and tube heat exchanger by natural convection

被引：10

作者：

Amini, Mohammad ^{[1
]}

Yaghoubi, Mahmood ^{[2
]}

Pishevar, Ahmad R. ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Mech Engn, Esfahan, Iran

[2] Shiraz Univ, Sch Mech Engn, Shiraz, Fars, Iran

来源：

EXPERIMENTAL HEAT TRANSFER | 2019年 / 32卷 / 01期

关键词：

natural convection; frost formation; fin and tube heat exchanger; environmental parameters; SURFACE;

D O I：

10.1080/08916152.2018.1473528

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this article, studies are made on frost formation and flow over a fin and tube heat exchanger due to natural convection for various conditions of relative humidity, air ambient temperature, and mean refrigerant temperature. The results include frost deposition, steps of frost formation, and its effect on heat transfer rate for different conditions. The results show that frost is formed only on the tip of the fins with higher thickness from top to bottom due to small distance between the fins. Frost causes to trap the air which increases the thermal resistance and reduces heat transfer in the system.

引用

页码：36 / 50

页数：15

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