Investigation on the effect of intake air pressure in a biogas-diesel fueled dual-fuel engine
01 Jul 2020-Energy Sources Part A-recovery Utilization and Environmental Effects (Informa UK Limited)-pp 1-17
TL;DR: Using biogas in IC engines takes a toll on the engine performance due to low volumetric efficiency of the dual-fuel mode and low energy density of biOGas, however, some engine modifications can be found in this article.
Abstract: Using biogas in IC engines takes a toll on the engine performance due to low volumetric efficiency of the dual-fuel mode and low energy density of biogas, however, some engine modifications can be ...
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TL;DR: In this paper , the authors presented some simulation results of the optimal control parameters of the engine aiming to achieve the compromise between performance and pollutant emissions of the biogas-hydrogen engine.
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TL;DR: In this article, the effect of methane enrichment on the output parameters of a Homogeneous Charge Compression Ignition (HCCI) engine is explored, where Diethyl Ether (DEE) is used as the secondary fuel to initiate auto-ignition.
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TL;DR: In this paper, the authors investigated the use of compressed natural gas in a diesel engine compared to diesel fuel, according to exergetic and exergo-economic analyzes.
Abstract: The goal of this study is to investigate the use of compressed natural gas in a diesel engine compared to diesel fuel, according to exergetic and exergoeconomic analyzes. For this purpose, compress...
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TL;DR: In recent years, diesel engine researchers have turned onto alternative fuel due to international emission legislations and depletion of fossil fuels as discussed by the authors, and natural gas and bio-fuels as an alternative fuel.
Abstract: In recent years, diesel engine researchers have turned onto alternative fuel due to international emission legislations and depletion of fossil fuels. Natural gas and biofuels as an alternative fue...
6 citations
TL;DR: In this article, a particle injector was proposed to directly inject a controlled quantity of biomass powder into the reactive mixture directly, which was shown to promote its reactivity and initiate the combustion process.
Abstract: The reduction of pollutant emissions from internal combustion engines, and in particular greenhouse gases, must be achieved by optimizing the combustion process and choosing fuels with a low carbon impact. Heterogeneous mixture combustions such as Diesel induce a difficulty in managing of the pollutants formation even if in its principle the output efficiency remains favorable. Therefore, it is necessary to distinguish this last point, which refers to the compression ratio, in order to move towards homogeneous combustion with a high compression ratio. We then speak generically of HCCI combustion (Homogeneous Charge Compression Ignition), whose process takes place in the context of auto ignition. An important challenge of this combustion is the control of the ignition timing. This paper presents a concept to control the initiation of combustion of a reactive gas mixture with low susceptibility to auto-ignition, which meets the expectation of high efficiency, via the introduction of biomass particles. From a schematic point of view, these particles will play the role of spark plugs distributed throughout the combustion chamber, and should have an auto ignition time much lower than that of the fuel. For this purpose, a particle injector was conceived to directly inject a controlled quantity of biomass powder into the reactive mixture directly. This part is a challenging point. The reproducibility and viability of the particle injector were qualitatively validated by image analysis acquired at high frequency and high resolution. Thus, the system was integrated into an RCM (Rapid Compression Machine) chamber, allowing diphasic gas/solid biomass combustion study. This preliminary test was investigated by high-speed video on a lean diluted biomass enriched with hydrogen mixture (CH4/CO2/H2) at low fuel-air equivalence ratio (Φ = 0.6), with different auto-ignition delays in the condition of experimentation. It was shown that the direct injection of a small amount of biomass particles was able to promote its reactivity and initiate the combustion process. This study highlights the promising effects of the injection of powder to control the beginning of homogeneous combustion, by bringing locally a spot of energy, distributed in the whole chamber. The control given by a global contribution of weak energy is distinguished from the process of combustion by auto-ignition of the fuel mixture whose properties of equivalence air-fuel ratio or dilution will complete the optimization of the process.
4 citations
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TL;DR: The material presented in this paper covers the method of describing the uncertainties in an engineering experiment and the necessary background material, as well as a technique for numerically executing uncertainty analyses when computerized data interpretation is involved.
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