Towards improvement of natural gas-diesel dual fuel mode: An experimental investigation on performance and exhaust emissions

Lounici, Mohand Said; Loubar, Khaled; Tarabet, Lyes; Balistrou, Mourad; Niculescu, Dan-Catalin; Tazerout, Mohand

doi:10.1016/j.energy.2013.10.091

Cited by 194 publications

(77 citation statements)

References 28 publications

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“…It is important to stress that different trends might occur if the injection timing is changed as the methane quantity is increased. This is evident from [12], where in the dual fuel case a slight increase in NO X emissions at high load was observed. Soot emissions decrease sharply as the CNG quantity increases at all loads.…”

Section: Transactions Of Famena Xli-1 (2017)mentioning

confidence: 52%

“…The effect of diesel fuel substitution at a constant load has been presented in [12,13]. As has been mentioned before, the introduction of CNG leads to longer ignition delay, which can lead to excessive mixing in the spray region, decrease in the in-cylinder temperature at the top dead center and eventually lead to incomplete combustion and a decrease in combustion and thermal efficiencies (Figure 8).…”

Section: Diesel Fuel Substitution Ratiomentioning

confidence: 99%

“…Conventional dual fuel engine performance significantly depends on the engine operating parameters (injection setup and diesel fuel substitution ratio), as well as engine load and engine speed [12,13]. All of these effects are closely linked to the differences in the combustion process between the Diesel and the conventional dual fuel engine.…”

Section: Conventional Dual Fuel Enginementioning

confidence: 99%

“…The Effect of Operating Parameters on Dual Fuel M. Blažić, Z. Lulić Engine Performance and Emissions -An Overview conventional dual fuel and Diesel engine performance has been given in several publications [8,12,13], and from the literature it can be seen that in the dual fuel engine: 1. Soot emissions are considerably lower, while HC emissions are higher in the entire operating range.…”

Section: Conventional Dual Fuel Enginementioning

confidence: 99%

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The Effect of Operating Parameters on Dual Fuel Engine Performance and Emissions – An Overview

et al. 2017

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SummaryIn order to decrease harmful exhaust gas emissions from internal combustion engines, researchers are continuously looking for alternative fuels and combustion techniques, and in this context the use of natural gas as a supplement for conventional fuels has been suggested. Since natural gas has high autoignition temperature, it cannot be used in compression ignition engines as the in-cylinder temperature around the top dead center is simply not high enough to ignite it. Therefore, in such an application natural gas has to be used with high reactivity fuel, usually diesel fuel. In these applications diesel fuel is used solely as a high energy ignition device, while natural gas is used as primary fuel. This type of combustion process is called dual fuel combustion process. This paper presents the effect of operating parameters, such as diesel fuel injection pressure, injection timing, diesel fuel mass, diesel fuel substitution ratio and intake charge conditioning, as well as engine load and speed on efficiency and harmful exhaust gas emissions from dual fuel diesel/natural gas internal combustion engines.

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Section: Transactions Of Famena Xli-1 (2017)mentioning

confidence: 52%

Section: Diesel Fuel Substitution Ratiomentioning

confidence: 99%

Section: Conventional Dual Fuel Enginementioning

confidence: 99%

Section: Conventional Dual Fuel Enginementioning

confidence: 99%

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The Effect of Operating Parameters on Dual Fuel Engine Performance and Emissions – An Overview

et al. 2017

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“…Focusing on wider use of natural gas in motor vehicles will allow increasing the efficiency of fuel and energy conversion and reducing negative environment impact [10].…”

Section: Introductionmentioning

confidence: 99%

Prospects for energy efficiency improvement and reduction of emissions and life cycle costs for natural gas vehicles

Kozlov

Теренченко

Luksho

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. This work is devoted to the experimental investigation of the possibilities to reduce greenhouse gas emissions and to increase energy efficiency of engines that use natural gas as the main fuel and the analysis of economic efficiency of use of dual fuel engines in vehicles compared to conventional diesel. The results of experimental investigation of a 190 kW dualfuel engine are presented; it is shown that quantitative and qualitative working process control may ensure thermal efficiency at the same level as that of the diesel engine and in certain conditions 5...8% higher. The prospects for reduction of greenhouse gas emissions have been assessed. The technical and economic evaluation of use of dual fuel engines in heavy-duty vehicles has been performed, taking into account the total life cycle. It is shown that it is possible to reduce life cycle costs by two times.

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Thermo‐economic analysis and optimization of a combined Organic Rankine Cycle ( ORC ) system with LNG cold energy and waste heat recovery of dual‐fuel marine engine

Tian

Yue

et al. 2020

Int J Energy Res

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A combined Organic Rankine Cycle (ORC) system with liquefied nature gas (LNG) cold energy and dual-fuel (DF) marine engine waste heat utilization was proposed. Engine exhaust gas and engine jacket cooling water were adopted as parallel heat sources. Thermo-economic analyses of the proposed system with 32 working fluids combinations were performed. Two objective functions covering thermal efficiencies and economic index were employed for performance evaluation. Afterward, the effects of operation pressure on the objective functions were investigated. Finally, the optimal conditions were obtained from the Pareto front with the Non-dominated Sorting Genetic Algorithm-II (NSGA-II) method. The results show that the proposed ORC system has better energy recovery performances than the parallel ORC system. R1150-R600a-R290, R1150-R601a-R600a, and R170-R601-R290 are determined as the three most promising working fluids combinations. Under optimized conditions, the output power range is 199.97 to 218.51 kW, the energy efficiency range is 13.64% to 15.62%, and the exergy efficiency range is 25.29% to 27.3%. The payback period ranges from 8.36 to 8.74 years. The working fluids selection helps to reduce the exergy destruction of intermediate heat exchanger, which could be up to 30.59%.

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Towards improvement of natural gas-diesel dual fuel mode: An experimental investigation on performance and exhaust emissions

Cited by 194 publications

References 28 publications

The Effect of Operating Parameters on Dual Fuel Engine Performance and Emissions – An Overview

The Effect of Operating Parameters on Dual Fuel Engine Performance and Emissions – An Overview

Prospects for energy efficiency improvement and reduction of emissions and life cycle costs for natural gas vehicles

Thermo‐economic analysis and optimization of a combined Organic Rankine Cycle ( ORC ) system with LNG cold energy and waste heat recovery of dual‐fuel marine engine

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