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논문 기본 정보

자료유형
학술저널
저자정보
Changchang Li (Pukyong National University) Jeongbin Lim (Pukyong National University) Dowoon Lee (ST.Johnsbury Academy J) Kyeongju Kong (Pukyong National University) Sukho Jung (Pukyong National University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제48권 제5호
발행연도
2024.10
수록면
252 - 259 (8page)
DOI
10.5916/jamet.2024.48.5.252

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초록· 키워드

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Exhaust gases generated during combustion in diesel engines are harmful to the environment. Therefore, carbon-free fuels have attracted attention as alternative fuels to achieve decarbonization goals. In this study, a system was developed to supply ammonia, a carbon-free fuel for diesel engines, from a urea–water solution (UWS). The generation of ammonia in the combustion chamber was verified when the UWS was injected into the intake system using a device supplying the UWS to the selective catalytic reduction system, which is used to reduce nitrogen oxides in diesel engines. The experimental results revealed that ammonia was generated at the compression temperature by motoring at 900 rpm without firing. Compared to the maximum compression pressure of the combustion chamber when only air was compressed, the maximum compression pressure when the urea−water solution was added decreased by 0.17%. By measuring the ammonia concentration in the exhaust gas pipe, an average of approximately 103 ppm was emitted. This value was estimated to be approximately 2.4% of the theoretical amount of the sprayed urea−water solution. In the future, we plan to develop a greenhouse-gas-reduction technology for diesel engines using a urea−water solution by investigating the effective solution injection and increasing the ammonia conversion rate.

목차

Abstract
1. Introduction
2. Hydrolysis of UWS
3. Methods
4. Results
5. Conclusion
References

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