Experimentation of combustion in an off-road diesel engine fueled with hydrogen/ biodiesel novel fuel blend.

The present research aims to analyze the combustion characteristics of an diesel engine when fed with a mixture of hydrogen and biodiesel. The primary objective is to ascertain if this fuel mixture may provide a greater heat release rate and identify the ideal combination of pressure for combustion. The fuel composition consists of hydrogen (20%), biodiesel (30%), and diesel (50%). In the experiments, diesel fuel served as the benchmark for comparison. A stationary Kirloskar single cylinder diesel engine, featuring a bore diameter of 87.50 mm and a stroke length of 110mm, was utilized. This engine was connected to an eddy current dynamometer, set to standard parameters for the research. The sample size of 40 was calculated using the G power calculator to achieve an 80% confidence level. Based on the conducted experimental trials, the study focused on the performance of a four-stroke compression engine. Specifically, the trials examined the output of the engine when using a mix blend known as D50H20BD30, which consists of plain diesel fuel. The mean value obtained for this blend was 68.8556. In comparison, the mean value for plain diesel fuel alone was 71.6689. The pressure measurements for plain diesel fuel averaged at 39.9922, whereas for the D50H20BD30 blend, the mean pressure value was 33.7822. Achieving this outcome is expected to lead to a decrease in engine emissions and encourage cleaner fuel combustion. The independent samples t-test revealed a statistically significant p-value of 0.021 (p<0.05), indicating a notable difference between the two groups. This result was obtained with a 95% confidence interval. Statistical significance is seen between the two groups. In comparison to pure diesel, the fuel mix D50H20BD30 of HRR exhibited a modest rise of 2.83%, while the produced fuel blends D50H20BD30 of pressure shown a notable decrease of 6.21%. These findings suggest that these fuel blends have the potential to enhance engine efficiency. A comprehensive understanding of the combustion properties of these fuel mixes is necessary in order to assess their potential significance for climate change mitigation and the reduction of fossil fuel use. [ABSTRACT FROM AUTHOR]