• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2005 Fiscal Year Final Research Report Summary

Development of the thermal design approach for electronic equipment incorporated with electric design and CFD software.

Research Project

Project/Area Number 16560190
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionToyama Prefectural University

Principal Investigator

ISHIZUKA Masaru  Toyama Prefectural University, Engineering, Professor, 工学部, 教授 (60326072)

Project Period (FY) 2004 – 2005
Keywordscomputational fluid dynamics (CFD) / thermal design / switch mode power supply / incorporation with electric design and thermaldesign / modeling of components / estimation of amount of dissipated heat
Research Abstract

In the design process of electronic equipments early estimates of component temperatures are of great importance. Many tools exist to assist thermal design engineers during this process, including flow network modeling (FNM), computational fluid dynamics (CFD), and well-established heat transfer correlations, and the thermal flow simulation technique is applied to thermal design in the development phase of electronic equipment.
In many electronic equipment, several coil components, such as a transformer and a high-frequency inductor are used and it is a one of the most important component for thermal design. Therefore, in order to improve the accuracy of thermal flow simulation, the coil component needs to be accurately analyzed together with the other components within a single numerical model. However, regarding the system-level thermal simulation, there are few reports in which the detail of modeling method for coil component is documented. The purpose of this study is to develop the … More compact thermal modeling method of coil component applicable to the system-level thermal flow simulation. This study especially focused on high-frequency inductor as the coil component.
In the proposed modeling method, the effect of proximity-effect loss occurs near the air gap on winding surface temperature was considered. Additionally, the effect of anisotropic thermal conductivity in a winding block on the winding surface temperature was considered. In this study the first step is the measurement of the winding surface temperature distribution of an experimental dummy inductor that imitates proximity loss occurring locally near an air gap in order to confirm the influence of proximity loss on the winding surface temperature distribution. Next, we conducted a numerical simulation of the experimental dummy inductor winding surface temperature.
As a key point in the numerical modeling, the significance of considering the influence of the proximity-effect loss and the anisotropic thermal conductivity on the winding surface temperature was demonstrated experimentally and numerically. Less

  • Research Products

    (9 results)

All 2005 2004

All Journal Article (8 results) Book (1 results)

  • [Journal Article] 薄型自然空冷電子機器の筐体傾きによる煙突効果(第2報,出口開口率を考慮した熱設計整理式の提案)2005

    • Author(s)
      北村陽児, 石塚 勝, 中川慎二
    • Journal Title

      日本機械学会論文集(B編) 71巻,706号

      Pages: 1625-1631

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Thermal Modeling with Transfer Function for the Transient Chip-On-Substrate Problem2005

    • Author(s)
      K.Yazawa, M.Ishizuka
    • Journal Title

      Thermal Science & Engineering Vol.13, No.1

      Pages: 37-40

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 温度場伝播の情報可視化によるヒートスプレッダ内非定常温度予測モデルの開発2005

    • Author(s)
      矢澤 和明, 中川 慎二, 石塚 勝
    • Journal Title

      可視化情報学会論文集 25,7

      Pages: 1346-5260

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Thermal Simulation Method for a Switch Mode Power Supply) and Its Integration with Electric Circuit Analysis (in the Case of Natural Convection Air Cooled Switch Mode Power Supply)2004

    • Author(s)
      K.Koizumi, A.Joboji K.Nagahara, M.Ishizuka
    • Journal Title

      Heat Transfer-Asian Research 33(8)

      Pages: 473-489

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A Numerical and Experimental Study on the Effect of Inclination on Thermal Behaviors of Natural Convection inside Thin Electronic Equipment Casing2004

    • Author(s)
      Y.Kitamura, M.Ishizuka, S.Nakagawa
    • Journal Title

      IMechE Journal of Power and Energy-Proceedings of the Institution of Mechanical Engineers Part A) Vol.218, Vol.7

      Pages: 501-508

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Chimney Effect on Natural Air Cooling of Electronic Equipment Under Inclination2004

    • Author(s)
      Y.Kitamura, M.Ishizuka
    • Journal Title

      ASME Journal of Electronic Packaging 126

      Pages: 423-428

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Thermal Simulation Method for a Switch Mode Power Supply and Its Integration with Electric Circuit Analysis (in the Case of Natural Convection Air Cooled Switch Mode Power Supply)2004

    • Author(s)
      K.Koizumi, A.Joboji, K.Nagahara, M.Ishizuka
    • Journal Title

      Heat Transfer-Asian Research 33(8)

      Pages: 473-489

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A Numerical and Experimental Study on the Effect of Inclination on Thermal Behaviors of Natural Convection inside Thin Electronic Equipment Casing2004

    • Author(s)
      Y.Kitamura, M.Ishizuka, S.Nakagawa
    • Journal Title

      IMechE Journal of Power and Energy - Proceedings of the Institution of Mechanical Engineers Part A) Vol.218,Vol.7

      Pages: 501-508

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 熱交換器ハンドブック2005

    • Author(s)
      分担執筆
    • Total Pages
      5
    • Publisher
      省エネルギーセンタ
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2007-12-13  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi