Reduction in Exhaust Emission Using Constantan Catalyst in the Diesel Engine

摘要

Catalytic convertor plays an important role in reducing harmful emissions i n the form of NO_x, HC, and CO. Various technologies have been developed to reduce vehicular emissions; however, it comes with the expense of engine performance and cost. In this research, harmful emissions from the exhaust gases of diesel engines are reduced without compromising the engine efficiency and cost-effectiveness. In this context, a new monolith is designed and fabricated with copper-nickel alloy (constantan wire) as catalyst enclosed by an aluminum casing. This device is tested on a single cylinder diesel engine at 1500 rpm and it shows 60% NO_x, 60% CO, and 35% HC conversion efficiency. This research is helpful for partial replacement of the platinum-grade material used in the present catalytic converter.