Experimental study on vibration and noise characteristics of a diesel engine fueled with mustard oil biodiesel and hydrogen gas mixtures

Abstract

Although diesel engines are the most preferred type of internal combustion engines, high levels of vibration and noise formed during combustion of diesel fuel lead to a reduction in vehicle comfort. In this paper, an experimental study was conducted on a diesel engine to explore the effects of dual fuel operation on vibration, noise and exhaust emissions. For this purpose, test engine was fueled with diesel fuel, mustard oil biodiesel (MOB), and a combination of MOB, diesel fuel and hydrogen gas. With reference to vibration, noise and emission data obtained from the use of diesel fuel, the effects of the usage of MOB and hydrogen gas mixtures on vibration, noise and emission formation were examined. Engine vibration and noise levels were found to be significantly reduced with the use of MOB. It was also found that the use of hydrogen gas with MOB has a positive effect on engine vibration and noise. Exhaust emission formation measurements showed that an engine fueled with MOB and hydrogen gas achieves the minimum carbon monoxide values. However, NO_x (nitrogen oxide) emissions increased with MOB and hydrogen gas usage due to increased end combustion temperature.

Keywords:

• Mustard oil biodiesel
• noise
• vibration
• hydrogen
• exhaust emission

Disclosure statement

No potential conflict of interest was reported by the authors.