Derivation of Empirical Formulas for Flame Lift-off Length of Light Oil and Kerosene
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- Li Baogang
- Graduate Student School of Mechatronic & Automotive Engineering, Chongqing Jiaotong University
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- Konishi Katsuyuki
- Department of Mechanical Engineering, Saitama Institute of Technology
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- Deng Tao
- School of Mechatronic & Automotive Engineering, Chongqing Jiaotong University
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- Li Jun
- School of Mechatronic & Automotive Engineering, Chongqing Jiaotong University
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抄録
In spray combustion, spray flame is formed in a position slightly away from an injection nozzle. In order to simulate spray combustion, it is important to predict precisely the distance called the flame lift-off length (set-off length). In this study, the effect of combustion conditions on the flame lift-off length was investigated using experimental results conducted with light oil and kerosene. A Single fuel spray was injected into a constant volume combustion vessel and self-ignited in high-temperature gas. Pressure, temperature, density of the internal gas, and injection pressure of the fuel were chosen as the combustion conditions considering the operation of the actual combustion equipment and engines. The combustion processes were observed with a high speed video camera. For the purpose of applying calculation models for the simulation of spray combustion, empirical formulas were derived. The formulas showed good correlation between the length and the combustion conditions. The formulas showed that the length of light oil is longer than that of kerosene only in the higher range of pressure and temperature of the ambient gas.
収録刊行物
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- マリンエンジニアリング
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マリンエンジニアリング 50 (2), 255-261, 2015
公益社団法人 日本マリンエンジニアリング学会
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詳細情報 詳細情報について
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- CRID
- 1390001204573137152
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- NII論文ID
- 130005279024
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- NII書誌ID
- AA11505252
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- ISSN
- 18843778
- 13461427
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- NDL書誌ID
- 026195398
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可