An Experimental Investigation Of Central Injection Based Hydrogen Dual Fuel Spark Ignition Engine
Authors
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,IN
Pavan J. Gowdal -
,INR. Rakshith
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,INS. Akhilesh
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,INManjunath .
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,INAnanth S. Iyengar
DOI:
https://doi.org/10.18311/jmmf/2022/30685Keywords:
Spark ignition engine, hydrogen central injection, brake thermal efficiency, brake specific fuel consumption.Abstract
Automobile industry is steadily moving away from traditional fossil fuels towards more sustainable and eco-friendly alternatives. Alternative to traditional fuels include hydrogen, which has the potential to satisfy the current energy demand in automotive field. However, design and fabrication of engines using pure hydrogen has many technological challenges. Combination of traditional fuels and hydrogen can reduce engine emissions including hydrocarbon (HC), carbon monoxide (CO), significant decrease in the carbon di oxide and methane. Additionally, the dual fuel engines provide the necessary savings with higher specific fuel consumption. However, dual fuel engines have a number of disadvantages such as pre-ignition, increase in NOx emissions, lower brake power and reduced brake thermal efficiency. In the present study, a single cylinder 110 cc spark ignition engine is procured and is retrofitted to admit hydrogen gas at specified pressures. The engine performance is measured using a mechanical load specifically designed for the engine. Brake power, torque, brake thermal efficiency, brake specific fuel consumption and other performance parameters are measured. The results from the engine is compared to the MATLAB model to study the inner working of the dual fuel engine to understand the pre-ignition characteristics. The results follow similar trends presented in the literature, the deviations in our study can be attributed to the type of engine selected and experimental errors. The highest increase in brake thermal efficiency and brake specific fuel consumption is 15.6 % and 22.5% respectively at 3500 rpm. The CO, and CO2 emissions have reduced by 86%, 26% respectively and increase of 16% in NOx is observed due to increase in combustion temperature.
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Accepted 2022-07-12
Published 2022-07-12
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