Effects of Methanol–Ammonia Blending Ratio on Performance and Emission Characteristics of a Compression Ignition Engine

IF 2.8 3区地球科学 Q1 ENGINEERING, MARINE

Journal of Marine Science and Engineering Pub Date : 2023-12-18 DOI:10.3390/jmse11122388

Zan Huang, Zhaochun Lyu, Peifang Luo, Guoqing Zhang, Wenxuan Ying, Aiguo Chen, Hua Xiao

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引用次数: 0

Abstract

Sustainable ammonia is one of the leading candidates in the search for alternative clean fuels for marine applications. This paper aims to build a simulation model of a six-cylinder, four-stroke diesel engine to investigate the effects of increasing the ammonia proportion in methanol–ammonia fuel blends on engine performance and emissions. In the present study, the conditions of different speeds and different proportions of ammonia in fuel blends are investigated. The results show that the average effective pressure, brake power, and brake torque increase by about 5% with an increased ammonia substitution ratio. In terms of economic performance, the changes under medium and low speed conditions are not obvious. However, the change in high speed conditions is significant. The brake specific fuel consumption (BSFC) is reduced by 6.6%, and the brake thermal efficiency (BTE) is increased by 4%. It is found that the performance of the engine is best at medium speed. The best performance is achieved with higher efficiency and lower emissions. The present results can provide guidance for the optimization of ammonia–methanol blends and their applications in engines.

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甲醇-氨气混合比对压燃式发动机性能和排放特性的影响

可持续氨是为船舶应用寻找替代清洁燃料的主要候选者之一。本文旨在建立一个六缸四冲程柴油发动机的仿真模型，以研究甲醇-氨燃料混合物中氨比例的增加对发动机性能和排放的影响。本研究调查了不同转速和不同氨在燃料混合物中比例的条件。结果表明，随着氨替代比例的增加，平均有效压力、制动功率和制动扭矩增加了约 5%。在经济性能方面，中低速条件下的变化并不明显。但在高速工况下变化明显。制动比燃料消耗（BSFC）降低了 6.6%，制动热效率（BTE）提高了 4%。研究发现，发动机在中速时性能最佳。最佳性能是在效率更高、排放更低的情况下实现的。本研究结果可为氨甲醇混合物的优化及其在发动机中的应用提供指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Marine Science and Engineering Engineering-Ocean Engineering

CiteScore

4.40

自引率

20.70%

发文量

1640

审稿时长

18.09 days

期刊介绍： Journal of Marine Science and Engineering (JMSE; ISSN 2077-1312) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to marine science and engineering. It publishes reviews, research papers and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.