한국해양대학교

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흡기중의 수소첨가가 산업용 디젤기관의 성능에 미치는 영향

Title
흡기중의 수소첨가가 산업용 디젤기관의 성능에 미치는 영향
Alternative Title
The Effect of Hydrogen Added in In-let Air on Industrial Diesel Engine Performance
Author(s)
이진아
Publication Year
2010
Publisher
한국해양대학교 대학원
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002176434
http://repository.kmou.ac.kr/handle/2014.oak/10841
Abstract
Diesel engines introduce only air into the cylinder, and the air is highly compressed. Fuel is directly injected into the combustion chamber in high temperature and pressure. Therefore diesel engines have high thermal efficiency because of the high compression ratio, while having high level of particulate matter and nitrogen oxide emissions because of the direct fuel injection.

Many technologies have been developed to reduce particulate matter and nitrogen oxide emissions from diesel engines. One of the technologies is hydrogen fuel introduced into the combustion chamber with diesel fuel.

In this thesis tiny amount of hydrogen is supplied into the combustion chamber in order to enhance the combustion performance. The engine, in which hydrogen is introduced, is tested. There are 20 test conditions given as 5 torque values of 100%, 75%, 50%, 25%, 0%, and 4 engine speeds of 700rpm, 1000rpm, 1500rpm and 2000rpm for the two cases with or without hydrogen. The amount of hydrogen is controlled into two ranges of 2000㎖ and 900㎖. Maximum torques and Idle torques at each engine speed are measured, then the torque values are divided into 4 levels with 25% increasing step.

The result shows that the fuel consumption, smoke, CO are reduced while the NOx emission is slightly increased.
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기계공학과 > Thesis
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000002176434.pdf Download

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