A Study on Reduction of In-Cylinder Heat Loss Using High-Speed IR Camera

DOI

Bibliographic Information

Other Title
  • 高速度赤外線カメラを用いたエンジン筒内熱損失低減に関する研究

Abstract

In order to clarify the in-cylinder wall heat loss phenomena, visualization of flame behavior and wall surface temperature distribution was attempted in a top-view optical engine. Infrared radiation from chromium coated quartz window surface was visualized by high-speed infrared camera. Heat flux sensor measurement and CFD simulation were also conducted to compared with infrared radiation and to consider the effect of wall material difference between quartz and metal. Furthermore, appropriate sensor layout was investigated from distributions of infrared radiation taken by high-speed infrared camera. The obtained high-speed infrared images successfully demonstrated the potential of the visualization technique for qualitative measurement of wall surface temperature distribution, which will be beneficial for fundamental understanding, model development and its validation of the wall heat transfer process. As for the sensor layout consideration based on high-speed infrared images, it was found that wall heat loss within φ30mm can be obtained by radially dividing the measurement area into three and using nine sensors.

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Details 詳細情報について

  • CRID
    1390287142238135680
  • NII Article ID
    130007988042
  • DOI
    10.11351/jsaeronbun.52.238
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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