Single-Phase Convective Heat Transfer of Water and Aqua Ethylene Glycol Mixture in a Small-Diameter Tube

被引：5

作者：

Umesh, V. ^{[1
]}

Balavignesh, S. ^{[1
]}

Raja, B. ^{[1
]}

机构：

[1] Indian Inst Informat Technol Design & Mfg, Madras 600127, Tamil Nadu, India

来源：

JOURNAL OF ENGINEERING THERMOPHYSICS | 2018年 / 27卷 / 01期

关键词：

FLOW; MICROCHANNELS; MINICHANNELS;

D O I：

10.1134/S1810232818010101

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A tailor-made convective heat transfer test facility is constructed to study the single-phase convective heat transfer of deionized water and 30 vol% and 60 vol% aqua-ethylene glycol in a stainless steel tube of 4 mm in inner diameter and 1 m in length. The heat flux is varied between 1 and 4 kW center dot m(-2) and for mass flux ranging from 160 to 475 kg center dot m(-2) s(-1). The experiments were predominantly conducted only for laminar flow regime. Finally, the heat transfer coefficient is recorded and compared with the conventional theories. It is observed that the presence of ethylene glycol in water decreases the heat transfer coefficient by more than 50%, due to the decreased Reynolds number and thermal conductivity of the mixture.

引用

页码：98 / 105

页数：8

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