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EHD-enhanced heat transfer in a metallic and a ceramic compact heat exchanger.

机译:EHD增强了金属和陶瓷紧凑型热交换器中的传热。

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摘要

Electrohydrodynamic (EHD) heat transfer enhancement has enormous potential to increase heat transfer rates while minimizing heat exchanger size. The aircraft industry, for one, could benefit using EHD heat transfer enhancement. Engineers can change their design approach and plan for minimal loads, resulting in heat exchangers more suitable to avionic geometries, allowing for additional payload space. During normal and operationally-induced increased heat loads, an EHD cooling system could automatically adjust the heat exchanger's capacity to handle these loads. The research goal is to prove a viable EHD heat exchanger concept while moving the technology towards commercial acceptance. Two concepts are investigated. One considers a common metallic material, while the other investigates ceramic construction. Both concepts show promise and advance the technology. The metallic EHD-enhanced heat exchanger yielded heat transfer rates nearly three fold compared to conventional heat exchangers, thus introducing a potential for three times reduction in the heat exchanger size.
机译:电动流体动力学(EHD)的传热增强具有巨大的潜力,可以在减小热交换器尺寸的同时提高传热速率。一方面,飞机行业可以受益于EHD传热增强。工程师可以更改其设计方法,并计划以最小的负载,从而使热交换器更适合于航空电子几何结构,从而增加了有效载荷空间。在正常和操作引起的热负荷增加期间,EHD冷却系统可以自动调节热交换器的能力以应对这些负荷。研究目标是证明可行的EHD换热器概念,同时使该技术朝着商业接受的方向发展。研究了两个概念。一种认为是常见的金属材料,而另一种则研究陶瓷结构。这两个概念都显示出希望并促进了技术的发展。与传统的热交换器相比,金属EHD增强的热交换器产生的传热速率几乎是传统热交换器的三倍,因此有可能将热交换器尺寸减小三倍。

著录项

  • 作者

    Baumgarten, Bruce Edward.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Engineering Mechanical.
  • 学位 M.S.
  • 年度 2004
  • 页码 98 p.
  • 总页数 98
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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