The Effect of Inert Gas in the Mixture with Natural Gas on the Parameters of the Combustion Engine

Chríbik, Andrej; Polóni, Marián; Minárik, Matej; Mitrović, Radivoje; Mišković, Zoran

doi:10.1007/978-3-030-30853-7_24

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…These differences are described in more detail in Section 3.2. The authors of the article have published on the effect of the individual synthesis gas components on combustion in an internal combustion engine in their publications [49,50]. The combustion process during the compression stroke (thus, the compression work expended) for all SGs differs; however, small differences arise during the expansion stroke in favour of the SG4 and the SG7 gases, which is manifested in the highest M t values (Figure 4).…”

Section: Short Discussionmentioning

confidence: 99%

High-Energy Synthesis Gases from Waste as Energy Source for Internal Combustion Engine

et al. 2023

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The aim of the presented article is to analyse the influence of the composition of synthesis gases with mass lower heating values in the range from 12 to 20 MJ/kg on the performance, economic, and internal parameters of an atmospheric two-cylinder spark-ignition combustion engine suitable for a micro-generation unit. The analysed performance parameter was the torque. The economic parameters analysed were the hourly fuel consumption and the engine’s effective efficiency. The analysed internal parameters of the engine were the indicated mean effective pressure, the pressure profiles in the cylinder, the course of the maximum pressure in the cylinder, and the course of the burning-out of the fuel in the cylinder. The analysed synthesis gases were produced by thermo-chemical processes from waste containing combustible components (methane, hydrogen and carbon monoxide) as well as inert gases (carbon dioxide and nitrogen). Higher hydrocarbons, which may be present in a synthesis gas, were not considered in this contribution because of their easy liquefaction at higher pressures in pressure bottles. A total of ten gases were analysed, all of which fall into the category of high-energy synthesis gases. The measured data from the operation of the combustion engine running on the examined gases were compared with the reference fuel methane. The measured results show a decrease in the performance parameters and an increase in the hourly fuel consumption for all operating loads. Specifically, at the engine speed of 1500 rpm, the drop in performance parameters was in the range from 9% to 24%. The performance parameters were directly proportional to the lower volumetric heating value of the stoichiometric mixture of gases with air. The rising fuel consumption proportionally matched the increase in the mass proportion of fuel in the stoichiometric mixture with air. The effective efficiency of the engine varied from 27.4% to 31.3% for different gas compositions, compared to 31.6% for methane. The conclusive results indicate that the proportion of hydrogen, methane and inert gases in the stoichiometric mixture of synthesis gases with air has the greatest influence on the course of fuel burning-out. The article points to the potential of energy recovery from waste by transforming waste into high-energy synthesis gases and their use in cogeneration.

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Section: Short Discussionmentioning

confidence: 99%

High-Energy Synthesis Gases from Waste as Energy Source for Internal Combustion Engine

et al. 2023

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“…The discussion about NOx emissions laboratory testing affectivity was triggered after affair investigation related to emissions manipulation. Vehicle testing with the Portable Emissions Measurement Systems (PEMS) usage in Europe showed that light diesel vehicles, certified by EURO 4 up to EURO 6 emissions norms, produce multiple times more NOx than it is allowed by appropriate emission limit [1,2]. These exceeds were caused by shortcomings in the approval procedure, concretely low vehicles acceleration and tight temperature range during NEDC certification [3].…”

Section: Introductionmentioning

confidence: 99%

Emission Problems of Vehicles and Advanced Fuels Application

Tarbajovský

Šoltésová

Puškár

2022

Strojnícky Časopis - Journal of Mechanical Engineering

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The automotive industry is exposed to continued pressures, the goal of which is decarbonisation together with application of the advanced technologies and fuels, as well as utilization of the alternative vehicle drives. The main task of the scientific publication was a complex emission analysis of the selected vehicles during various test cycles, as well as a comparison of the individual emissions when using different types of fuel.

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Medium-Energy Synthesis Gases from Waste as an Energy Source for an Internal Combustion Engine

et al. 2021

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The aim of the presented article is to analyse the influence of synthesis gas composition on the power, economic, and internal parameters of an atmospheric two-cylinder spark-ignition internal combustion engine (displacement of 686 cm3) designed for a micro-cogeneration unit. Synthesis gases produced mainly from waste contain combustible components as their basic material (methane, hydrogen, and carbon monoxide), as well as inert gases (carbon dioxide and nitrogen). A total of twelve synthesis gases were analysed that fall into the category of medium-energy gases with lower heating value in the range from 8 to 12 MJ/kg. All of the resulting parameters from the operation of the combustion engine powered by synthesis gases were compared with the reference fuel methane. The results show a decrease in the performance parameters for all operating loads and an increase in hourly fuel consumption. Specifically, for the operating speed of the micro-cogeneration unit (1500 L/min), the decrease in power parameters was in the range of 7.1–23.5%; however, the increase in hourly fuel consumption was higher by 270% to 420%. The decrease in effective efficiency ranged from 0.4 to 4.6%, which in percentage terms represented a decrease from 1.3% to 14.5%. The process of fuel combustion was most strongly influenced by the proportion of hydrogen and inert gases in the mixture. It can be concluded that setting up the synthesis gas production in the waste gasification process in order to achieve optimum performance and economic parameters of the combustion engine for a micro cogeneration unit has an influential role and is of crucial importance.

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The Effect of Inert Gas in the Mixture with Natural Gas on the Parameters of the Combustion Engine

Cited by 3 publications

References 10 publications

High-Energy Synthesis Gases from Waste as Energy Source for Internal Combustion Engine

High-Energy Synthesis Gases from Waste as Energy Source for Internal Combustion Engine

Emission Problems of Vehicles and Advanced Fuels Application

Medium-Energy Synthesis Gases from Waste as an Energy Source for an Internal Combustion Engine

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