MATHEMATICAL AND EXPERIMENTAL ANALYSIS OF THERMAL BARRIER COATING IN DIESEL ENGINE

被引：1

作者：

Jeyakumar N. ^{[1
]}

Madasamy S. ^{[1
]}

Narayanasamy B. ^{[1
]}

机构：

[1] Department of Mechanical Engineering, MepcoSchlenk Engineering College, TamilNadu, Sivakasi

来源：

International Journal of Energy for a Clean Environment | 2022年 / 23卷 / 07期

关键词：

alumina; carbon monoxide; emission; oxides of nitrogen; performance;

D O I：

10.1615/InterJEnerCleanEnv.2021037891

中图分类号：

学科分类号：

摘要：

Improvement of performance characteristics of diesel engines can be achieved by means of the thermal barrier coating method. The present study deals with the effect of magnesium stabilized zirconia (MgZrO3) coating with a bond coat of NiCrAl on piston crown by plasma spray technique. The selection of the coating thickness can be identified by the simulation approach using ANSYS R16.2. A piston was modeled using solid works, which were then analyzed with various coating thicknesses such as 0.2, 0.5, and 0.9 mm for which the temperature distribution was evaluated. A piston with a bond coat thickness of 0.15 mm and ceramic coat thickness of 0.35 mm was selected for experimental study in a single-cylinder four-stroke air-cooled diesel engine. The temperature gradient through the piston was reduced. The performance characteristics, such as brake-specific fuel consumption (BSFC), reduced and emission characteristics, such as hydrocarbon (HC), carbon monoxide (CO), decreased with an increase in NOX. The rate of reduction in specific fuel consumption was 18.18% for the uncoated engine and 44.44% for the coated engine. The rate of reduction in carbon monoxide emission was 14.28% for the uncoated engine and 66.67% for the coated engine. The rate of reduction in hydrocarbon emission was 9% for the uncoated engine and 11.76 % for the coated engine. The rate of increase in oxides of nitrogen emission was 9% for the uncoated engine and 11.76% for the coated engine. Thus, a drastic reduction of HC, CO emissions and BSFC was observed with the thermal barrier coating in diesel engines. © 2022 by Begell House, Inc.

引用

页码：29 / 37

页数：8

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