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ファイル | 記述 | サイズ | フォーマット | |
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jsmemecj.2017.G0700102.pdf | 1.03 MB | Adobe PDF | 見る/開く |
タイトル: | ディーゼル機関における冷却損失算出方法の検討 (噴射条件と吸気条件が熱勘定に及ぼす影響) |
その他のタイトル: | An Examination of Calculation Method for Cooling Loss in a Diesel Engine |
著者: | Bao, Zhichao 平山, 一輝 桑原, 洋樹 堀部, 直人 https://orcid.org/0000-0002-7126-2986 (unconfirmed) 石山, 拓二 |
著者名の別形: | Bao, Zhichao Hirayama, Kazuki Kuwabara, Hiroki Horibe, Naoto Ishiyama, Takuji |
キーワード: | Diesel Multi-injection Cooling loss After injection Heat balance |
発行日: | 2017 |
出版者: | 日本機械学会 |
誌名: | 年次大会 |
巻: | 2017 |
論文番号: | G0700102 |
抄録: | In this study, a new method to calculate cooling loss is proposed. According to previous experimental data, the method which subtracts indicated work, friction loss, exhaust loss, etc., from input energy seems to be reasonable. However, in order to improve its accuracy, exhaust loss should be calculated more precisely. Hence, exhaust loss is calculated by tracking the state of in-cylinder gas from exhaust valve close to intake valve open using the law of energy conservation and mass conservation. In order to estimate the accuracy of this approach, various data acquired with several injection patterns and intake temperature were analyzed. When the main injection is divided and injected by two injectors with two separate common-rail systems, the reduction of cooling loss is verified both with conventional and new heat balance calculation method. In addition, when the main injection is reduced and, on the other hand, after injection increased, the cooling loss is also suppressed hence total thermal efficiency increased according to proposed calculation method. |
記述: | 日本機械学会 2017年度年次大会 2017.9.3-6 |
著作権等: | 発行元の許可を得て登録しています. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/239409 |
DOI(出版社版): | 10.1299/jsmemecj.2017.G0700102 |
出現コレクション: | 学術雑誌掲載論文等 |
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