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The effect of the addition of H2 on combustion and emission characteristics of Cummins ISM370 diesel engine was investigated. The cylinder pressure and heat release rate were tested under 70% load with the addition of 6% H2 to the engine. On this basis, AVL FIRE software was used to construct numerical model of the engine at 70% load with the addition of 6% H2. The simulation results and experimental...
An experimental study was conducted to investigate the operating range and combustion characteristics in a methanol fumigated diesel engine. The test engine was a six-cylinder, turbocharged direct injection engine with methanol injected into the intake manifold of each cylinder. The experimental results showed that the viable diesel methanol dual fuel (DMDF) operating range in terms of load and methanol...
The effect of methyl oleate and ethanol addition on the combustion characteristics and soot emission of single droplets of diesel was studied by means of experimentation and kinetic modelling. The experiments were performed using a high-temperature tube furnace operating at 973K and the soot intensity indicated by the soot KL factor, and flame temperature were simultaneously measured using a two-colour...
Hydrogen has many attractive intrinsic properties that can be used for improving engine efficiency and emission performance. In this paper, the presence and long term stability of hydrogen nanobubbles (HNBs) in gasoline fuel were investigated. A HNB–gasoline blend is fabricated by nanobubble generator which consists of gas–liquid dispersion system. After the generation of HNBs in gasoline, the presence...
In this study, an investigation of the explosion parameters, which include maximum explosion pressure (pmax), maximum rate of pressure rise (dp/dt)max, and combustion characteristics, i.e., laminar burning velocity (SL), activation temperature (Ta) and Zel’dovich number (Ze) of dimethyl ether (DME)–air–argon/nitrogen mixtures are systematically carried out. The dilution effects on the explosion and...
Diesel–methanol dual fuel (DMDF) engines at light loads suffer from low thermal efficiency and high unburned percentages of fuel. Pilot fuel injection timing and intake temperature are two important parameters which affect the combustion process in DMDF engines. In present experimental work, the combined effects of intake temperature and injection timing on the performance of a DMDF engine have been...
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