Study on heat transfer of a rotating heat pipe cooling system in dry abrasive-milling

被引：37

作者：

Chen, Jiajia ^{[1
]}

Fu, Yucan ^{[1
]}

Gu, Zhibin ^{[1
]}

Shen, Houfa ^{[1
]}

He, Qingshan ^{[2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Peoples R China

[2] Henan Univ Technol, Zhengzhou 450007, Henan, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2017年 / 115卷

基金：

中国国家自然科学基金;

关键词：

Rotating heat pipe; Abrasive-milling tool; Volume of fluid (VOF) method; Natural convection boiling; 2-PHASE CLOSED THERMOSIPHON; THERMAL PERFORMANCE; ACCELERATION; NANOFLUIDS;

D O I：

10.1016/j.applthermaleng.2016.12.138

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A vertical rotating heat pipe was incorporated in the abrasive-milling tool to help dissipate heat during the machining process and realize green machining of difficult-to-machine materials. In this study, a simulation is performed to investigate the heat transfer mechanism in the evaporator and condenser section of the rotating heat pipe abrasive-milling tool (RHPAMT) at a rotational speed of 1600 rpm. The results indicate that natural convection boiling heat transfer occurs in the evaporator. Film condensation is the heat transfer regime in the condenser section. The heat transfer performance of the RHPAMT is investigated in dry abrasive-milling of Ti-6Al-4V with different cooling conditions, filling ratio and feed speed. Dry machining without rotating heat pipe is also performed and compared with RHPAMT. The optimal heat transfer performance can be obtained with a cooling pressure of 0.36 MPa and a filling ratio of 16.4%. The temperature in the evaporator section can be lowered by approximately 65.7% compared to the same machining process without heat pipe. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：736 / 743

页数：8

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