Experimental Analysis for Nitrogen Oxide Reduction in a Diesel Engine by the Hydrogen-Assisted Selective Catalytic Reduction Technique

Author:

Mathavan S.1,Nagarajan G.2ORCID,Murugan Sivaraj3ORCID

Affiliation:

1. Department of Automobile Engineering, KCG College of Technology, Chennai, India

2. Department of Mechanical Engineering, College of Engineering, Guindy, Chennai, India

3. Department of Mechanical Engineering, Institute of Technology, Hawassa University, Hawassa, Ethiopia

Abstract

Diesel engine emissions pose a serious threat to the environment and cause inevitable hazards to the atmosphere. The technique that is used to control and combat nitrogen oxide (NOX) emissions is selective catalytic reduction. However, the various experimental conditions in the SCR technique will reduce NOX emissions. Former studies experimentally discovered the decrease of NOx discharges at a higher temperature. In this study, a two-cylinder diesel engine with a 34 kW rated power at 3750 rpm under low-temperature operating conditions underwent hydrogen-assisted selective catalytic reduction of NOx. The experiment was performed by differing the hydrogen injection duration (0–40°CA) and NOX emissions were studied. Variation in emissions with H2 injection was investigated. On varying the hydrogen injection duration, NOX, HC, CO2, CO, and smoke emissions are reduced (mention the % of reduction) and it can be applied in real time to reduce global warming.

Publisher

Hindawi Limited

Subject

General Engineering,General Materials Science

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