A Study on Reduction of In-Cylinder Heat Loss Using High-Speed IR Camera
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
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- Publication code
- 20214129
- Paper/Info type
- JSAE Transaction
Vol.52 No.2
- Pages
- 238-243(Total 6 p)
- Date of publication
- Mar 2021
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
Category(J) | 研究論文 Translation |
---|---|
Category(E) | ResearchPaper |
Author(J) | 1) 宮下 和也, 2) 鈴木 浩高, 3) 松本 淳志, 4) 香川 景章, 5) 山下 健一 |
Author(E) | 1) Kazuya Miyashita, 2) Hirotaka Suzuki, 3) Atsushi Matsumoto, 4) Kageaki Kagawa, 5) Kenichi Yamashita |
Affiliation(J) | 1) いすゞ中央研究所, 2) いすゞ中央研究所, 3) いすゞ中央研究所, 4) いすゞ中央研究所, 5) いすゞ中央研究所 |
Abstract(J) | 筒内の熱損失を把握するために,ガラス表面に蒸着したクロム膜からの赤外放射を高速度赤外線カメラで可視化することで,筒内における壁面温度分布の計測を試み,赤外線放射強度を熱流束センサの点計測,CFDと連成させた1次元熱伝導計算結果と比較して,高速度赤外線放射計測の優位性と問題点について確認した. Translation |
Abstract(E) | 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. |