Combustion organization method of methanol/alcohol hydrogen fuel internal combustion engine and application thereof

Abstract

The invention discloses a combustion organization method of a methanol/alcohol hydrogen fuel internal combustion engine and application thereof. The combustion organization method comprises the stepsthat part methanol fuel of methanol fuel of tail gas waste heat is catalytically reformed or pyrolyzed on line is used for preparing alcohol hydrogen, and the main component of the alcohol hydrogen ishydrogen; part of the prepared alcohol hydrogen is supplied to an ignition chamber, and hydrogen-enriched mixed gas is formed; and ignition is achieved through a spark plug, a high-energy turbulent flame jet ignition source is formed, and a homogeneous thin mixed gas, formed through methanol and alcohol hydrogen jetted from interior of a gas inlet channel or a cylinder, in the cylinder is ignited. According to the invention, part of methanol fuel is converted into the alcohol hydrogen, the combustion organization method is adopted and is applied to the internal combustion engine, ignition reliability can be improved, the in-cylinder combustion process is accelerated, the antiknock property is improved, and the internal combustion engine adapts to higher compression ratios, so that thermalefficiency of the engine is improved, and hazard emission of nitrogen oxides, particles and the like is reduced. A modification experiment on a diesel engine of which the cylinder diameter is 210 mmshows that thermal efficiency is improved by 4%, emission of nitrogen oxides is reduced by 85%, and emission of particles is reduced by 95%.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to a combustion organization method of a methanol / alcohol hydrogen fuel internal combustion engine and its application. Background technique [0002] Methanol can be used as a fuel for internal combustion engines. It is highly efficient and clean. Compared with internal combustion engines using traditional petroleum fuels, it can greatly reduce the emissions of nitrogen oxides, sulfur oxides, and particulate matter from internal combustion engines. It has a good development prospect. [0003] At present, methanol fuel is used in internal combustion engines, and there are mainly two combustion organization modes: spark ignition and diesel ignition. The spark ignition method is mainly used in small-bore engines, and its combustion organization is similar to that of gasoline engines. This method is suitable for pure methanol fuel, namely M100, and for mixed fuels of...

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Problems solved by technology

However, this method brings some problems: 1) two fuel tanks are required, which increases the cost and space requirements; 2) the diesel electronically controlled high-pressure common rail injection system needs to be equipped, which inc...

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