Journal ArticleDOI
The influence of fuel composition on the combustion and emission characteristics of natural gas fueled engines
TLDR
In this paper, the effects of natural gas composition on combustion and emission characteristics of internal combustion engines (ICEs) were reviewed and reported the most achievements obtained by researchers in this field.Abstract:
As global energy demand rises, natural gas (NG) plays an important strategic role in energy supply. Natural gas is the cleanest fossil fuel that has been investigated extensively for use in spark-ignition (SI) and compression-ignition (CI) engines. This paper reviews the research on the effects of natural gas composition on combustion and emission characteristics of natural gas fueled internal combustion engines (ICEs) and reports the most achievements obtained by researchers in this field. It has been reported that the engine performance and emission are greatly affected by varying compositions of natural gas. The most important NG fuel property is the Wobbe number (WN). Generally, it was agreed by researchers that the fuels with higher hydrocarbons, higher WN, and higher energy content exhibited better fuel economy and carbon dioxide (CO2) emissions. Nitrogen oxides (NOx) emissions were also increased for gases with higher levels of higher WN, while total hydrocarbons (THCs), carbon monoxide (CO), showed some reductions for these gases. On the other hand, particulate matter (PM) emissions did not show any fuel effects. Moreover, adding of small fractions of higher alkanes, such as ethane and propane, significantly improved ignition qualities of natural gas engines. The results presented provide a good insight for researchers to pursue their future research on natural gas fueled ICEs.read more
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Journal ArticleDOI
Technical overview of compressed natural gas (CNG) as a transportation fuel
TL;DR: In this article, the authors present the worldwide background, prospects and challenges of natural gas fuel and natural gas fueled vehicles along with environmental and economic aspects of compressed natural gas as a transformation fuel.
Journal ArticleDOI
Effects of alternative fuels on the combustion characteristics and emission products from diesel engines: A review
TL;DR: In this article, the effects of some alternative fuels (alcohol, biodiesel, natural gas and Di Methyl Ether (DME)) on combustion characteristics and emission products from diesel engines to meet future emission regulations using alternative fuel.
Journal ArticleDOI
Progress and recent trends in reactivity-controlled compression ignition engines:
TL;DR: Low-temperature combustion is an emerging engine technology that has the ability to yield low NOx and soot emissions while maintaining high fuel efficiency as discussed by the authors, and it has been shown that low temperature combustion strategies can reduce SOI and NOx emissions.
Journal ArticleDOI
Engine combustion and emission fuelled with natural gas: A review
TL;DR: In this paper, the authors have reviewed the performance of different types of natural gas engines, including pure NG engine, pure NG/gasoline bi-fuel engine, NG/diesel dual fuel engine and HCNG engine.
Journal ArticleDOI
Impact of pilot diesel ignition mode on combustion and emissions characteristics of a diesel/natural gas dual fuel heavy-duty engine
TL;DR: In this article, the effect of diesel injection timing on combustion and emissions characteristics of a 6-cylinder turbocharged intercooler diesel/natural gas dual fuel heavy-duty engine was investigated.
References
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Journal ArticleDOI
Progress and recent trends in homogeneous charge compression ignition (HCCI) engines
TL;DR: In this paper, five types of models applied to HCCI engine modelling are discussed in the present paper, and specific strategies for diesel-fuelled, gasoline-fined, and other alternative fuelled combustion are also discussed.
Journal ArticleDOI
Natural-gas fueled spark-ignition (SI) and compression-ignition (CI) engine performance and emissions
TL;DR: In this article, a dual-fuel engine with high-cetane fuel and natural gas injection is used to provide a source of ignition for the charge of a spark-ignition (SI) engine.
Journal ArticleDOI
Spark ignition natural gas engines—A review
Haeng Muk Cho,Bang-Quan He +1 more
TL;DR: In this article, the operating envelope, fuel economy, emissions, cycle-to-cycle variations in indicated mean effective pressure and strategies to achieve stable combustion of lean burn natural gas engines are highlighted.
Book
Homogeneous charge compression ignition (HCCI) engines : key research and development issues
TL;DR: The homogeneous charge, compression-ignition (HCCI) combustion process has the potential to significantly reduce NOx and particulate emissions, while achieving high thermal efficiency and the capability of operating with a wide variety of fuels.
Journal ArticleDOI
The state of natural gas
TL;DR: In this article, the authors examine sources of natural gas, their limitations and potential, and identify the technological and commercial challenges to be overcome in taking the world through the transition to a clean and hydrogen-rich energy source.