Zero-dimensional 2-phase combustion model in a dual-fuel compression ignition engine fed with gaseous fuel and a divided diesel fuel charge

Mikulski, Maciej; Wierzbicki, Sławomir; Piętak, Andrzej

doi:10.17531/ein.2015.1.6

Cited by 26 publications

(17 citation statements)

References 19 publications

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“…The thermodynamic parameters directly influence the combustion inside the combustion chamber. They are described by the 0D zonal model which is based on the phenomenological characterization of the process or the prediction based on the type, chemistry and stoichiometric ratio of the combustion and then the Wiebe law commonly used according to [3][4][5][6] among the other methods.…”

Section: The Operating Parameters Of the W18v50df Enginementioning

confidence: 99%

Mapping and functional optimization of control parameters in W18V50DF dual-fuel engines during combustion

et al. 2021

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The objective of this work is to improve the combustion management in W18V50DF dual fuel engine by determining for a desired power, the optimal values of the parameters of pressures and subsequently to map them in real time based on a power set point. The interest was mainly focused in pressure parameters, other being considered as constant. Two methods have been used, namely mathematical modeling and learning by neural networks. The results show that, in the beginning mathematical modeling result helps to monitor the ongoing process and with longer learning period the result with neural network become better and significant due to the adaptation to the reality. Furthermore, the neural network method improves significantly in the long term the rationalization of fuel consumption in such a system in order to significantly reduce the carbon dioxide emission rate. Finally, work has proved that for an immediate result mathematical model can be used but without robustness on the control process, this is obtained by a neural network. But this approach requires a good data base and long learning time.

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Section: The Operating Parameters Of the W18v50df Enginementioning

confidence: 99%

Mapping and functional optimization of control parameters in W18V50DF dual-fuel engines during combustion

et al. 2021

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“…As indicated by the findings of experiments [1,2,9,10,11,15,18], as well as simulation studies [5,6,7,8], the presence of methane in an engine cylinder alters the course of the combustion process. First of all, when gas fuel is supplied to the engine with air, the temperature of the working medium in the engine cylinder decreases.…”

Section: Introductionmentioning

confidence: 98%

“…It is particularly noticeable for high engine loads. Moreover, with such a fuelling system of self-ignition engines, the NOx emission and the smoke content in exhaust gas is reduced noticeably [1,2,6,8,11,16].…”

Section: Introductionmentioning

confidence: 99%

Effect of the proportion of natural gas in the feeding dose on the combustion process in a self-ignition engine with a Common Rail fuel system

Wierzbicki¹

2018

Diagnostyka

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Limited oil resources, combined with the need to stem the toxic emissions to the atmosphere, necessitate seeking alternative fuels for combustion engines. According to forecasts, natural gas will be one of those fuels whose importance is likely to increase in future. Because of its properties, natural gas can be used directly in spark-ignition engines. When natural gas is used as fuel in much more efficient self-ignition engines, it is necessary to use dual fuelling. This paper presents the effect of the proportion of natural gas in the feed dose on the course of the combustion process in a turbocharged self-ignition engine. The engine was controlled by the Common Rail fuel system, programmed for single-fuel operation.

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“…The results indicate that the engine speed greatly affect the temperature at TDC. Mikulski et al [22] proposed a 0-D simulation model of a dual fuel compression ignition engine. They used first order macro reactions for the NG components.…”

Section: Introductionmentioning

confidence: 99%

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Abo-Elfadl

Abdulmoez

Nassib

2019

JES. Journal of Engineering Sciences

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The research for alternative fuels increased rapidly to mitigate the pollution problems resulting from using conventional fuels in internal combustion engines. Natural gas (NG) appears the most promising alternative due to its low prices and availability around the world.In this paper, a two-zone, zero-dimensional (0-D) model for the simulation of dual fuel NGdiesel engine is developed to study the performance of the engine with a proposed technique of NG early direct injection. The model is composed of several sub-models that are based on semiempirical formulas. NG is modeled as being directly injected at the beginning of the compression stroke. The model is applied to study the performance of HELWAN M-114 diesel engine using dual fuel of NG and diesel fuels as a case study.The results indicate that using NG early direct injection technique (EDI) results in increasing the volumetric efficiency and hence the brake power of the engine compared to the intake manifold induction (IMI) of NG with air through the intake manifold. The percentage increase in brake power is 8.7% at NG mass ratio in the total fuel (the supplement ratio (SR)) of 90% at full load. To evaluate the proposed technique, results obtained by varying the engine load and the SR. Results indicate that the slow burning rate of NG results in decrease in the brake thermal efficiency by 3.5% and increases in brake specific fuel consumption with a percentage of 10.2% at 90% SR and full load. However, a great advantage of increasing the SR is the reduction in NO x and soot emissions particularly at high engine loads where they were reduced with percentages of 28.6% and 86%, respectively at 90% SR and full load condition.

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Zero-dimensional 2-phase combustion model in a dual-fuel compression ignition engine fed with gaseous fuel and a divided diesel fuel charge

Cited by 26 publications

References 19 publications

Mapping and functional optimization of control parameters in W18V50DF dual-fuel engines during combustion

Mapping and functional optimization of control parameters in W18V50DF dual-fuel engines during combustion

Effect of the proportion of natural gas in the feeding dose on the combustion process in a self-ignition engine with a Common Rail fuel system

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

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