• Proceedings of the KAIS Fall Conference
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• 2008.11a
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• pp.436-438
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• 2008

에너지와 환경에 대해 사회적인 이슈가 되어 왔으며, 이중 바이오 연료는 친환경적인 연료로 이미 연구를 해오고 있다. 그러나 바이오연료 특성상 질소산화물이 경유에 비해서 20~30%가 더 많이 배출되므로 적용에 따른 환경문제가 대두되었다. 따라서 본 연구는 폐식용유를 이용한 바이오연료를 버너에 적용하여 발생되는 배기가스를 저감할 수 있는 기술을 개발하고자 했다.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.835-838
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• 2009

본 논문은 환경공해의 주범인 자동차의 매연을 감소할 수 있는 방법에 대한 연구이다. 자동차 매연의 주요원인은 연료의 불완전 연소와 연료 자체의 특성때문이다. 따라서 본 논문에서는 가솔린/경유 차량을 CNG/LPG 차량으로 대체하고 CNG/LPG연료의 특성을 감안하여 연료의 공급과 분사량, 분사시간을 차량 ECU에서 보내지는 신호를 기본데이터로 차량의 가속과 감속 아이들 상태에서 차량을 적응적으로 최적화 할 수 있게 실시간으로 보정데이터를 계산한다. 본 논문의 결과로 기존의 구조변경차량의 출력에서 20%이상, 배기가스 에서 10% 이상의 향상되었다.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2002.05b
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• pp.100-102
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• 2002

• Journal of the korean Society of Automotive Engineers
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• v.23 no.2
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• pp.13-19
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• 2001

• LP가스
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• s.85
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• pp.60-62
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• 2003

• Environmental and Resource Economics Review
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• v.32 no.3
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• pp.167-190
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• 2023

This study analyzes the potential demand for automobiles based on fuel type using survey data in Korea. The dependent variable of the model is the future desired fuel type, including gasoline, diesel, hybrid, electricity, and hydrogen. The main explanatory variables are the respondent demographic characteristics, key reasons for choosing vehicle fuel type and environmental awareness extracted via principal component analysis (PCA). Using a multinomial logit (MNL) model, we find that respondents who consider fuel economy and infrastructure increase the demand for a hybrid car but decrease the demand for electric and hydrogen vehicles. The denial-types increase the demand for gasoline (petrol) and diesel (light oil), and decrease the demand for electric vehicles. The anxiety-types increase the demand of hybrid vehicles, and decrease the demand for electric vehicles. In contrast, in the case of pro-types, the demand for diesel (light oil) hydrogen vehicles decreased.

• Transactions of the Korean Society of Mechanical Engineers
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• v.16 no.1
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• pp.180-188
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• 1992

By means of the compatibility according to solving environmental pollution and energy problem due to the emissions of NOx and smoke from diesel engine this paper experimentally inspected the effect of using emulsified fuel, gas oil-water, for combustion characteristic, that is combustion pressure, pressure rise rate, heat generating rate, the period of ignition delay and specific fuel consumption, and CO, HC, NOx concentration and smoke density. When using emulsified fuel, as a water addition rate was increased, combustion pressure, pressure rise rate and heat generating rate was increased, the period of ignition delay was lengthening, the specific fuel consumption was some what increased in contrast to diesel fuel in low load, but deceased in high load region. And NOx concentration was decreased, CO concentration was increased in low load, but decreased in high load region, HC concentration was increased in contrast to diesel fuel in all region.

• Journal of Energy Engineering
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• v.19 no.4
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• pp.246-250
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• 2010

It was measured engine power, specific fuel consumption and exhaust emissions to analyze fuel economy between LNG dual fuel vehicle and base diesel one. The tested LNG dual fuel engine is converted from diesel engine having 12 liter heavy duty class. The power of LNG dual fuel engine is 5% lower than diesel one and the engine efficiency is also lower than diesel case. However the exhaust emission of diesel engine such as PM, NOx, CO and $CO_2$ showed higher than that of LNG duel fuel case except NMHC component. And economical analysis were carried out two cases for an aspect of fuel economy and environmental benefit. As a result, LNG dual fuel vehicle gives some economic benefit to whom both business party and public side respectively though considering the subsidy and price discount for diesel.

• Proceedings of KOSOMES biannual meeting
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• 2006.11a
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• pp.291-297
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• 2006

Recently it is a tendency that the use of the heavy fuel oil is investigated even from the middle&small class vessel in order to reduce the operating cost of vessel caused by with rise of international gas price. In this study, analyzed the physical & chemical properties and examined the effect of refining treatment and a fuel oil additive for MF30 fuel oil which is a mixture fuel oil mixed M.G.O and the heavy oil MF380 use to be possible in the middle&small class vessel. As a results, the effects of two of pre-refinery treatment methods as centrifugal purifier and heating & homogenizing system(M.C.H) are some feeble, but the pour point and the flash point came to be low more or less. The effect of property improvement which is caused by with the fuel oil additive did not appear positively.

• Journal of the Korean Society of Marine Environment & Safety
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• v.13 no.1 s.28
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• pp.39-45
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• 2007

Recently it is a tendency that the heavy fuel oil is considered to be used on board even middle or small sized vessels in order to reduce the operating cost of vessel mused by a rise in international oil prices. In this study, analyzed the physical & chemical properties and examined the effect of refining treatment and a fuel oil additive for MF30 fuel oil which is a mixture fuel oil mixed M.G.O and the heavy oil MF380 use to be possible in the middle&small class vessel. As a results, the effects of two of pre-refinery treatment methods as centrifugal purifier and heating & homogenizing system(M.C.H) are some feeble, but the pour point and the flash point came to be low more or less. The effect of property improvement which is mused by the fuel oil additive did not appear positively.