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Environmental Science and Pollution Research

, Volume 26, Issue 11, pp 11438–11451 | Cite as

Performance and emission characteristics analysis of thermal barrier coated diesel engine using palm biodiesel

  • Thiruselvam KrishnamoorthiEmail author
  • Ganesh Vinayagasundram
Research Article
  • 101 Downloads

Abstract

Various research works are being undertaken around the world on the subject of thermal efficiency improvisation and emission reduction from diesel engines. This research work analyzes the performance and emission characteristics of a thermal barrier coated diesel engine which used palm biodiesel. The piston and cylinder liners were coated with equal percentages of alumina (Al2O3) and yittria-stabilized zirconia (YSZ) powder using plasma spraying coating method. The piston was coated with 100 μm thickness and the two cylinder liners were coated with 150 and 200 μm thicknesses and were used to analyze the performance and emission characteristics. Test results of the thermal barrier coated engine using palm biodiesel were compared with the results derived from the base engine. The tests revealed an increase of 3.8% specific fuel consumption (SFC) as an average when neat palm biodiesel was used in the base engine. Interestingly, the palm biodiesel used in the 150- and 200-μm thick thermal barrier coated engine was responsible for a significant decrease of the SFC by an average of 4.18% and 8.05% respectively. The brake thermal efficiency was found to decrease on an average of 1.02% when tests were run using the neat palm biodiesel in the base engine. But an average proportionate increase of 0.72% and 2.19% was visible when palm biodiesel was used in the tests conducted on the 150- and 200-μm thick thermal barrier coated engine. There was also an understandable brake specific reduction of 0.991 g/kWh carbon monoxide (CO) emission and 0.025 g/kWh unburned hydrocarbon (HC) levels. The nitrogen oxide (NOx) emission was observed as 14.06 g/kWh in the 200-μm thick thermal barrier coated engine which was slightly higher when the results were compared with that of the uncoated engine. The novelty of this research investigation is based on the usage of yttrium-stabilized zirconia and alumina thermal barrier coating on the cylinder liner and piston head of engine. This is justified due to the fact that most of the previous investigations undertaken focused on the thermal barrier coating in the piston, valve, and cylinder head alone. The utility factor of the palm biodiesel (B 100) in the low heat rejection engine has also proved to be another significant and novel factor in the present investigation outlined in this paper. This is mainly due to the fact that the ongoing investigations in this realm concentrated only on blends of 20 to 30% of palm biodiesel with diesel fuel in the low heat rejection diesel engine.

Keywords

Low heat rejection (LHR) engine TBC Cylinder liner Diesel engine Palm biodiesel 

Notes

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringPanimalar Engineering CollegeChennaiIndia
  2. 2.Department of Automobile EngineeringSri Venkateshwara College of EngineeringChennaiIndia

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