Design and operation of a Tesla-type valve for pulsating heat pipes

被引：116

作者：

de Vries, S. F. ^{[1
]}

Florea, D. ^{[1
]}

Homburg, F. G. A. ^{[1
]}

Frijns, A. J. H. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Mech Engn, Eindhoven, Netherlands

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 105卷

关键词：

Pulsating heat pipe; Tesla valve; Promoting circulation; Diodicity;

D O I：

10.1016/j.ijheatmasstransfer.2016.09.062

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new Tesla-type valve is successfully designed for promoting circulation in a pulsating heat pipe (PHP) and improving the thermal resistance. Its functionality and diodicity is tested by laminar single-phase modelling and by steady two-phase flow experiments. The valve is symmetrically integrated in a single-turn PHP, which reduces variabilities to give a more thorough understanding of the behaviour in PHPs. Two transparent bottom-heated PHPs, one with and one without valves, are manufactured and the flow behaviour and thermal performance is studied. The valves produced a diodicity which lead to a difference in velocity of 25% for the different flow directions. Furthermore, a decrease of 14% in thermal resistance was observed due to the addition of the valves. (C) 2016 The Authors. Published by Elsevier Ltd.

引用

页码：1 / 11

页数：11

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