Experimental Analysis of Exhaust Manifold with Ceramic Coating for Reduction of Heat Dissipation

Frontiers in Automobile and Mechanical Engineering

Saravanan, J.^1 ; Valarmathi, T.N.^1 ; Nathc, Rajdeep^1 ; Kumar, Prasanth^1

Department of Mechanical and Production Engineering, Sathyabama University, Chennai, India^1

关键词: Experimental analysis;    Inner surfaces;    Multiple cylinders;    Outer surface;    Petrol engine;    Safe distance;    Sound pollution;    Zirconia powders;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/197/1/012051/pdf
DOI  :  10.1088/1757-899X/197/1/012051

来源: IOP

【 摘 要 】

Exhaust manifold plays an important role in the exhaust system, the manifold delivers the waste toxic gases to a safe distance and it is used to reduce the sound pollution and air pollution. Exhaust manifold suffers with lot of thermal stress, due to this blow holes occurs in the surface of the exhaust manifold and also more noise is developed. The waste toxic gases from the multiple cylinders are collected into a single pipe by the exhaust manifold. The waste toxic gases can damage the material of the manifold. In this study, to prevent the damage zirconia powder has been coated in the inner surface and alumina (60%) combined with titania (40%) has been used for coating the outer surface of the exhaust manifold. After coating experiments have been performed using a multiple-cylinder four stroke stationary petrol engine. The test results of hardness, emission, corrosion and temperature of the coated and uncoated manifolds have been compared. The result shows that the performance is improved and also emission is reduced in the coated exhaust manifold.