天然气-生物柴油双燃料压缩点火发动机振动与噪声特性评价

IF 0.5 Q4 TRANSPORTATION SCIENCE & TECHNOLOGY

Transport Problems Pub Date : 2023-03-01 DOI:10.20858/tp.2023.18.1.06

Saulius Stravinskas, Alfredas Rimkus, J. Matijošius

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引用次数: 0

摘要

随着环境要求越来越严格，地球污染越来越严重，传统柴油的替代引起了越来越多的关注。对于使用替代燃料，如生物柴油和天然气，它们的影响不仅要从发动机的环境指标方面进行检查，还要从发动机振动和声压方面进行检查。本研究考察了生物柴油和天然气两种燃料对压缩点火发动机振动和声压的影响。采用常规柴油或加氢植物油生物柴油作为燃气点火的先导燃料。气体燃料为天然气，以不同的气体燃料能量份额(40%、60%和80%)注入进气歧管。试验在恒定的发动机曲轴转速和固定的6°顶止点先导燃油喷射启动下进行，同时改变燃油成分和发动机负载。该实验揭示了液体燃料中气体能量份额(GES)与CI发动机的生态和能源指标之间的相关性。

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EVALUATION OF VIBRATION AND NOISE CHARACTERISTICS OF A COMPRESSION-IGNITION ENGINE FUELLED WITH NATURAL GAS-BIODIESEL DUAL FUEL

As environmental requirements become more stringent and the planet becomes more polluted, the replacement of conventional diesel is attracting more interest. For alternative fuels, such as biodiesel and natural gas, to be used, their effects must be examined not only in terms of the engine’s environmental indicators but also in terms of engine vibrations and sound pressure. This study examined the influence of dual fuel – biodiesel and natural gas – on vibrations and sound pressure of a compression-ignition (CI) engine. Conventional diesel or hydrotreated vegetable oil biodiesel was used as a pilot fuel for gas ignition. The gaseous fuel was natural gas, which was injected into the intake manifold with different energy shares of the gaseous fuel (40%, 60% and 80%). Tests were performed at a constant engine crankshaft speed and a fixed start of pilot fuel injection of 6° BTDC while the fuel composition and engine load were changed. This experiment revealed correlations between gas energy share (GES) in liquid fuel and ecological and energy indicators of a CI engine.

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来源期刊

Transport Problems TRANSPORTATION SCIENCE & TECHNOLOGY-

CiteScore

1.90

自引率

14.30%

发文量

审稿时长

48 weeks

期刊介绍： Journal Transport Problems is a peer-reviewed open-access scientific journal, owned by Silesian University of Technology and has more than 10 years of experience. The editorial staff includes mainly employees of the Faculty of Transport. Editorial Board performs the functions of current work related to the publication of the next issues of the journal. The International Programming Council coordinates the long-term editorial policy the journal. The Council consists of leading scientists of the world, who deal with the problems of transport. This Journal is a source of information and research results in the transportation and communications science: transport research, transport technology, transport economics, transport logistics, transport law.