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The purpose of this research work is to optimize the combustion bowl geometry of a single cylinder stationary diesel engine for the effective operation of KME (kapok methyl ester) – diesel blends. Considering that the reported design modification would render the benefit of adaptation of higher blends of KME, in this study, two different combustion chamber geometries such as TRCC (trapezoidal combustion...
The diesel/methanol dual fuel (DMDF) combustion mode was conducted on a turbo-charged, inter-cooling diesel engine with 6-cylinder for the heavy duty (HD) vehicle. In DMDF mode, methanol is injected into the intake port to form lean air/methanol premixed mixture, and then ignited by the direct-injected diesel fuel in cylinder. This study is aimed to investigate the effect of diesel injection pressure...
The combustion and emission characteristics of a dual fuel diesel engine with high premixed ratio of methanol (PRm) were investigated. Experiments were performed on a 6-cylinder turbocharged, inter-cooling diesel engine. Methanol was injected through the intake port and ignited by direct injected diesel in the cylinder, the maximum PRm was over 70%. The experimental results showed that with high PR...
Cement manufacturing is one of the leading energy consuming and heavy pollutant processes which is accountable for CO2, NOX, SO2 emissions and some heavy metal discharge from the pre-calciner kiln system. In past few decades there has been an enormous amount of researches to reduce the energy and environmental cost by using alternative fuel and raw material. In recent years utilisation of alternative...
Oxygenated fuel components are known to reduce soot emissions in diesel engines significantly while having little effect on NOx emissions. Several compounds were mixed with diesel fuel and tested for their emission characteristics on a 1.8l heavy duty diesel engine. The C1-oxygenate dimethoxy methane (OME1) which contains no C–C bonds in its molecular structure was found to have the best effect on...
Shortage of fossil fuels requires from scientists to undertake investigation focused on applying alternative, renewable based fuels to a reciprocating engine. Among others, alcohols: methanol and ethanol are proposed as satisfactory fuels, that would be applied either as single fuels or blended with gasoline o diesel fuel. The paper describes impact of both methanol and E85 (85% ethanol and 15% gasoline)...
In this study, production of hydrocarbon fuel from Calophyllum inophyllum oil has been characterized for diesel engine application, by appraising essential fuel processing parameters. As opposed to traditional trans-esterification process, the reported oil was cracked using a catalyst, as the latter improves the fuel properties better than the former. In a bid to make the production process economically...
Hydrogen has many excellent combustion properties for improving combustion and emissions performance of spark ignition (SI) engines. This article presents a comparative energy and exergy analyses of a hydrogen–methane blends fuelled direct injection diesel engine. The engine was modified to realize hydrogen port injection by installing hydrogen injectors in the intake manifolds. Engine was used to...
In this work, the effects of blending n-pentanol, a second generation biofuel with diesel on the performance and emission characteristics of a diesel engine under exhaust gas recirculation (EGR) conditions are investigated. Tests were performed on a single-cylinder, constant-speed, un-modified, direct-injection diesel engine using four n-pentanol/diesel blends: 10%, 20%, 30% and 45% (by volume). The...
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