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火花点火機関燃焼室における熱流束計測(シリンダ内流れが低流速域での検討) Measurement of Heat Flux on Combustion Chamber of Spark Ignition Engine (Examination of Low Velocity of in Cylinder Flow) ヒバナ テンカ キカン ネンショウシツ ニ オケル ネツリュウソク ケイソク シリンダナイ ナガレ ガ テイリュウソクイキ デノ ケントウ 笹井, 孝志 ササイ, タカシ 90180489 長瀬, 慶紀 ナガセ, ヨシノリ Nagase, Yoshinori 長瀬 ナガセ Nagase 慶紀 ヨシノリ Yoshinori 宮崎大学 University of Miyazaki 30315353 友松, 重樹 トモマツ, シゲキ Tomomatsu, Shigeki 友松 トモマツ Tomomatsu 重樹 シゲキ Shigeki 宮崎大学 University of Miyazaki Kimura, Masatoshi 木村, 正寿 キムラ, マサトシ Kimura 木村 キムラ Masatoshi 正寿 マサトシ Sasai, Takashi Engine, Heat flux, Gas flow, Heat transfer coefficient, Swirl As a method of high efficiecy of an internal combustion engine a gas flow is introduced into a combustion chamber. However, the gas flow in the combustion chamber is not necessarily connected efficient from increasing the cooling loss by the heat transfer between the combustion gas and the combustion chamber wall. Therefore, it is necessary to know the correlation of the gas flow in the cylinder and heat transfer to the combustion chamber wall. When the state of the gas flow in the cylinder is swirl, the equation which can calculate the heat transfer coefficient of the whole combustion chamber from the gas flow within the turbulent flow region is obtained. However, this equation cannot be used when a gas flow is in the low flow velocity region. In this study, the heat flux on the cylinder wall is measured in the low flow velocity region. As a result, the heat transfer coefficient within the low flow velocity region is obtained using the pressure and the volume in the cylinder. 宮崎大学工学部 Faculty of Engineering, University of Miyazaki 2012-07-30 jpn departmental bulletin paper VoR http://hdl.handle.net/10458/4116 https://miyazaki-u.repo.nii.ac.jp/records/2758 AA00732558 05404924 宮崎大学工学部紀要 Memoirs of Faculty of Engineering, University of Miyazaki 41 181 186 https://miyazaki-u.repo.nii.ac.jp/record/2758/files/engineering41_181-186.pdf application/pdf 848.9 kB 2020-06-21