抄録
A low-speed diesel engine holds a unique position in large ship propulsion usage thanks to its high economic efficiency and superb reliability. However, the grounds of its reputation are not necessarily clear especially for the engineers in the other engine relating fields, since detailed and objective discussion has been rare among engines from high-speed to low-speed. At first, various indexes such as representative speed, mean piston speed and stroke-to-bore ratio are investigated among engines of various sizes. The result shows that the marine low-speed diesels run much more slowly than expected from a similarity law based on the engine size, and the ship propulsion efficiency should be a key of the ultra-low revolution. Detailed comparison between low-speed diesels and high-speed ones are also done to capture the essential differences in the engine type and structure. Finally, the application of EGR (Exhaust Gas Recirculation) to marine diesels is taken up to exemplify the difficulty in dealing the marine fuels of high sulfur content.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 373-382 |
| ページ数 | 10 |
| ジャーナル | Toraibarojisuto/Journal of Japanese Society of Tribologists |
| 巻 | 63 |
| 発行部数 | 6 |
| 出版物ステータス | 出版済み - 1 1 2018 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
これを引用
Study on technical features of marine low-speed diesel engines. / Tajima, Hiroshi.
：: Toraibarojisuto/Journal of Japanese Society of Tribologists, 巻 63, 番号 6, 01.01.2018, p. 373-382.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Study on technical features of marine low-speed diesel engines
AU - Tajima, Hiroshi
PY - 2018/1/1
Y1 - 2018/1/1
N2 - A low-speed diesel engine holds a unique position in large ship propulsion usage thanks to its high economic efficiency and superb reliability. However, the grounds of its reputation are not necessarily clear especially for the engineers in the other engine relating fields, since detailed and objective discussion has been rare among engines from high-speed to low-speed. At first, various indexes such as representative speed, mean piston speed and stroke-to-bore ratio are investigated among engines of various sizes. The result shows that the marine low-speed diesels run much more slowly than expected from a similarity law based on the engine size, and the ship propulsion efficiency should be a key of the ultra-low revolution. Detailed comparison between low-speed diesels and high-speed ones are also done to capture the essential differences in the engine type and structure. Finally, the application of EGR (Exhaust Gas Recirculation) to marine diesels is taken up to exemplify the difficulty in dealing the marine fuels of high sulfur content.
AB - A low-speed diesel engine holds a unique position in large ship propulsion usage thanks to its high economic efficiency and superb reliability. However, the grounds of its reputation are not necessarily clear especially for the engineers in the other engine relating fields, since detailed and objective discussion has been rare among engines from high-speed to low-speed. At first, various indexes such as representative speed, mean piston speed and stroke-to-bore ratio are investigated among engines of various sizes. The result shows that the marine low-speed diesels run much more slowly than expected from a similarity law based on the engine size, and the ship propulsion efficiency should be a key of the ultra-low revolution. Detailed comparison between low-speed diesels and high-speed ones are also done to capture the essential differences in the engine type and structure. Finally, the application of EGR (Exhaust Gas Recirculation) to marine diesels is taken up to exemplify the difficulty in dealing the marine fuels of high sulfur content.
UR - http://www.scopus.com/inward/record.url?scp=85052843785&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85052843785&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85052843785
VL - 63
SP - 373
EP - 382
JO - Toraibarojisuto/Journal of Japanese Society of Tribologists
JF - Toraibarojisuto/Journal of Japanese Society of Tribologists
SN - 0915-1168
IS - 6
ER -