...
首页> 外文期刊>International Journal of Renewable Energy Development >Thermal Performance Improvement of the Heat Pipe by Employing Dolomite/Ethylene Glycol Nanofluid
【24h】

Thermal Performance Improvement of the Heat Pipe by Employing Dolomite/Ethylene Glycol Nanofluid

机译:通过使用白云石/乙二醇纳米流体来热性能改善热管

获取原文
   

获取外文期刊封面封底 >>

       

摘要

In heat transfer applications, heat pipes are widely- preferred because of some characteristics such as low cost, being able to be produced in any size and low maintenance cost make them superior. Moreover, the working fluid to be employed substantially affects the heat transfer characteristics of a heat pipe. In this paper, effects of nanoparticle addition into the ethylene glycol on heat pipe’s thermal performance were analysed experimentally. Every test was done using two variant working fluids, ethylene glycol and dolomite nanoparticles-doped ethylene glycol, respectively. Dolomite nanoparticles (2% by weight) and Sodium Dodecyl Benzene Sulfonate (0.5% by weight) were doped into the ethylene glycol while preparing the dolomite/ethylene glycol nanofluid. After filling in the heat pipe, experiments were realized under changing working conditions. Using experimental data, efficiency and thermal resistance of the heat pipe were examined. Viscosity of the each working fluid was determined. The contact angle –wettability measurements were also performed to specify the effects of surface active agent addition. The obtained findings revealed that nanoparticle inclusion inside the base fluid, i.e. ethylene glycol, improved the thermal performance (efficiency) and decreased the heat pipe’s thermal resistance substantially.
机译:在传热应用中,热管是广泛优选的,因为诸如低成本的一些特性,能够以任何尺寸和低维护成本生产,使它们优越。此外,要采用的工作流体基本上影响热管的传热特性。本文通过实验分析了纳米颗粒加入纳米粒子对乙二醇对热管的热性能的影响。使用两个变体工作流体,乙二醇和白云石纳米颗粒掺杂的乙二醇来完成每次测试。将白云石纳米颗粒(2重量%)(2重量%)和十二烷基苯磺酸钠(0.5重量%)掺杂到乙二醇中,同时制备白云石/乙二醇纳米流体。在填充热管后,在改变工作条件下实现实验。使用实验数据,检查热管的效率和热阻。确定每个工作流体的粘度。还进行了接触角 - 适用性测量以指示表面活性剂添加的影响。所获得的发现显示,纳米粒子夹杂物在基础流体内,即乙二醇,改善了热性能(效率)并大大降低了热管的热阻。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号