합성가스/디젤 혼소압축착화 엔진의 합성가스 혼합비와 압축비에 따른 연소 및 배출가스 특성
Syngas is widely produced by incomplete combustion of coal, water vapor, and air (oxygen) in a high-temperature/highpressure gasifier through a coal-gasification process for power generation. In this study, a simulation syngas which was mainly composed of H 2 , CO, CO 2 , and N 2 was fueled with die...
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Published in | 한국분무공학회지 Vol. 24; no. 1; pp. 35 - 42 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국분무공학회
31.03.2019
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Subjects | |
Online Access | Get full text |
ISSN | 1226-2277 2288-9051 |
DOI | 10.15435/JILASSKR.2019.24.1.35 |
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Abstract | Syngas is widely produced by incomplete combustion of coal, water vapor, and air (oxygen) in a high-temperature/highpressure gasifier through a coal-gasification process for power generation. In this study, a simulation syngas which was mainly composed of H 2 , CO, CO 2 , and N 2 was fueled with diesel. A modified single cylinder compression ignition (CI) engine is equipped with intake port syngas supply system and mechanical diesel direct injection system for dual fuel combustion. Combustion and emission characteristics of the engine were investigated by applying various syngas composition ratios and compression ratios. Diesel fuel injection timing was optimized to increase indicated thermal efficiency (ITE) at the engine speed 1,800 rpm and part load net indicated mean effective pressure (IMEP net ) 2 to 5 bar. ITE of the engine increased with the H 2 concentration, compression ratio and engine load. With 45% of H 2 concentration, compression ratio 17.1 and IMEP net 5 bar, ITE of 41.5% was achieved, which is equivalent to that of only diesel fuel operation. |
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AbstractList | Syngas is widely produced by incomplete combustion of coal, water vapor, and air (oxygen) in a high-temperature/highpressure gasifier through a coal-gasification process for power generation. In this study, a simulation syngas which was mainly composed of H 2 , CO, CO 2 , and N 2 was fueled with diesel. A modified single cylinder compression ignition (CI) engine is equipped with intake port syngas supply system and mechanical diesel direct injection system for dual fuel combustion. Combustion and emission characteristics of the engine were investigated by applying various syngas composition ratios and compression ratios. Diesel fuel injection timing was optimized to increase indicated thermal efficiency (ITE) at the engine speed 1,800 rpm and part load net indicated mean effective pressure (IMEP net ) 2 to 5 bar. ITE of the engine increased with the H 2 concentration, compression ratio and engine load. With 45% of H 2 concentration, compression ratio 17.1 and IMEP net 5 bar, ITE of 41.5% was achieved, which is equivalent to that of only diesel fuel operation. Syngas is widely produced by incomplete combustion of coal, water vapor, and air (oxygen) in a high-temperature/highpressure gasifier through a coal-gasification process for power generation. In this study, a simulation syngas which was mainly composed of H2, CO, CO2, and N2 was fueled with diesel. A modified single cylinder compression ignition (CI) engine is equipped with intake port syngas supply system and mechanical diesel direct injection system for dual fuel combustion. Combustion and emission characteristics of the engine were investigated by applying various syngas composition ratios and compression ratios. Diesel fuel injection timing was optimized to increase indicated thermal efficiency (ITE) at the engine speed 1,800 rpm and part load net indicated mean effective pressure (IMEPnet) 2 to 5 bar. ITE of the engine increased with the H2 concentration, compression ratio and engine load. With 45% of H2 concentration, compression ratio 17.1 and IMEPnet 5 bar, ITE of 41.5% was achieved, which is equivalent to that of only diesel fuel operation. KCI Citation Count: 1 Syngas is widely produced by incomplete combustion of coal, water vapor, and air (oxygen) in a high-temperature/high-pressure gasifier through a coal-gasification process for power generation. In this study, a simulation syngas which was mainly composed of $H_2$, CO, $CO_2$, and $N_2$ was fueled with diesel. A modified single cylinder compression ignition (CI) engine is equipped with intake port syngas supply system and mechanical diesel direct injection system for dual fuel combustion. Combustion and emission characteristics of the engine were investigated by applying various syngas composition ratios and compression ratios. Diesel fuel injection timing was optimized to increase indicated thermal efficiency (ITE) at the engine speed 1,800 rpm and part load net indicated mean effective pressure ($IMEP_{net}$) 2 to 5 bar. ITE of the engine increased with the $H_2$ concentration, compression ratio and engine load. With 45% of $H_2$ concentration, compression ratio 17.1 and $IMEP_{net}$ 5 bar, ITE of 41.5% was achieved, which is equivalent to that of only diesel fuel operation. |
Author | Chung Tahn 오승묵 Junsun Lee 이용규 이준순 정탄 Yonggyu Lee Seungmook Oh Changup Kim 김창업 |
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SubjectTerms | Compression ignition Compression ratio Dual-fuel combustion Syngas 기계공학 압축비 압축착화 합성가스 혼소 |
Title | 합성가스/디젤 혼소압축착화 엔진의 합성가스 혼합비와 압축비에 따른 연소 및 배출가스 특성 |
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