Optimization of performance and operational cost for a dual mode diesel-natural gas RCCI and diesel combustion engine

Ansari, Ehsan; Shahbakhti, Mahdi; Naber, Jeffrey

doi:10.1016/j.apenergy.2018.09.040

Cited by 57 publications

(14 citation statements)

References 53 publications

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“…High octane fuels or low reactivity with resistance to spontaneous ignition are more favorable for RCCI, PCCI and PPC combustion. For this reason, most of the studies carried out on RCCI, PCCI and PPC engines are focused on natural gas [89,[123][124][125][126][127][128][129][130][131][132][133] and ethanol [134][135][136][137][138][139][140][141][142][143][144] as an alternative fuel.…”

Section: Alternative Fuels For New Ice Applicationsmentioning

confidence: 99%

Alternative Fuels for Internal Combustion Engines

İlhak¹,

Tangöz²,

Akansu³

et al. 2019

The Future of Internal Combustion Engines

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Researchers have studied on alternative fuels that can be used with gasoline and diesel fuels. Alternative fuels such as hydrogen, acetylene, natural gas, ethanol and biofuels also uses in internal combustion engines. Hydrogen in the gas phase is about 14 times lighter than the air. Moreover, it is the cleanest fuel in the world. On the other hand because of its high ignition limit (4-75%), low ignition energy, needs special design to use as pure hydrogen in internal combustion engines. It is proved that hydrogen improves the combustion, emissions and performance, when is added as 20% to fuels. Natural gas is generally consisting of methane (85-96%) and it can be used in both petrol and diesel engines. Ethanol can be used as pure fuel or mixed with different fuels in internal combustion engines. In this section, the effects of natural gas, hydrogen, natural gas + hydrogen (HCNG), ethanol, ethanol + gasoline, ethanol + hydrogen, acetylene, acetylene + gasoline mixtures on engine performance and emissions have been examined.

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Section: Alternative Fuels For New Ice Applicationsmentioning

confidence: 99%

Alternative Fuels for Internal Combustion Engines

İlhak¹,

Tangöz²,

Akansu³

et al. 2019

The Future of Internal Combustion Engines

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Section: Co and Hc Emissions Versus Different Fractions Of Hydrogenmentioning

confidence: 99%

The Future of Internal Combustion Engines

Carlucci¹

2019

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USA). His research interest is mainly in combustion strategies with alternative fuels. He has taken part in different national and international research projects. He is the author of three book chapters, about 40 international journal papers, and approximately 40 papers presented during international and national congresses. He is the editor for two international journals and guest editor for a special issue on dual-fuel combustion. ContentsPreface XIII Section 1The Challenges of Future Internal Combustion Engines 1 Chapter 1 3 Introductory Chapter: The Challenges of Future Internal Combustion Engines by Antonio Paolo Carlucci Section 2 CO 2 Reduction from Internal Combustion Engines 7 Chapter 2 9 Dual-Fuel Combustion by Mateos Kassa and Carrie Hall Chapter 3

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“…diesel engines produce substantial amounts of NOx and PM emissions due to the formation of regions with high temperatures as well as high equivalence ratios during combustion [2]. Hence, diesel engines have many problems regarding exhaust gas emissions that violate environmental laws.…”

Section: Introductionmentioning

confidence: 99%

Effects of Post-Injection Characteristics on the Combustion, Emission, and Performance in a Diesel-Syngas Reactivity Controlled Compression Ignition Engine

Noroozi

Seddiq

2021

IJAME

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This paper presents a numerical investigation of the separate effects of post-injection characteristics in a heavy-duty turbocharged direct injection diesel engine under pure diesel combustion (PDC) and diesel-syngas combustion (DSC) operating conditions. Converge CFD code was used coupled with a detailed n-heptane/toluene/PAH chemical kinetic mechanism (consists of 71 species and 360 reactions) for diesel-syngas dual-fuel combustion simulation. A total of 36 strategies based on the post-injection characteristics (post-injection timing, fuel quantity, spraying pressure, and main-post dwell time) on the combustion characteristics, exhaust gas emissions, and engine performance under PDC and DSC conditions were investigated. Numerical achievements revealed that 40% substitution of diesel fuel with syngas significantly decreased particulate matter emission and enhanced the indicated thermal efficiency (ITE), compared to the baseline PDC case. However, carbon monoxide noticeably increased. In addition, retarding the post-injection timing prolonged the combustion duration and also reduced the nitrogen oxides emissions and ITE. By increasing the post-injection quantity up to 15%, the combustion process deteriorated, and carbon-based emissions such as particulate matter, carbon monoxide, and unburnt hydro-carbon in the exhaust gases increased under PDC and DSC conditions. Furthermore, increasing post-injection pressure (PIP) from 1000 to 1450 bar under both PDC and DSC conditions led to higher flame temperature, and as a result, the heat release rate peak point and temperature peak point for the second combustion event increased. However, at a PIP of 1600 bar, the ITE deteriorated under PDC and DSC operating cases.

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Optimization of performance and operational cost for a dual mode diesel-natural gas RCCI and diesel combustion engine

Cited by 57 publications

References 53 publications

Alternative Fuels for Internal Combustion Engines

Alternative Fuels for Internal Combustion Engines

The Future of Internal Combustion Engines

Effects of Post-Injection Characteristics on the Combustion, Emission, and Performance in a Diesel-Syngas Reactivity Controlled Compression Ignition Engine

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