alexa ANALYSIS OF PERFORMANCE AND EMISSION CHARACTERISTICS OF
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

ANALYSIS OF PERFORMANCE AND EMISSION CHARACTERISTICS OF THERMAL BARRIER COATED DI DIESEL ENGINE FUELED WITH ANIMAL TALLOW METHYL ESTER

Mohd Abdul Haleem Abir1, Dr.A.Aruna kumari2, Dr.K.Vijaya Kumar Reddy3
  1. M.Tech Student, Department of Mechanical Engineering, JNTU College of Engineering Hyderabad, Andhra Pradesh, India.
  2. Associate Professor, Department of Mechanical Engineering, JNTU College of Engineering Hyderabad, Andhra Pradesh, India.
  3. Professor, Department of Mechanical Engineering, JNTU College of Engineering Hyderabad, Andhra Pradesh, India.
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Abstract

The importance of energy and energy security is paramount. With alarming rate of depleting fossil fuels, rising crude oil prices, depreciating domestic currency and increasing oil imports, India stares at an acute prospect of having to incur huge foreign exchange outgo to buy expensive energy in the name of oil. Technology commands enormous power to effect major transformation. In conventional diesel engine approximately one-third of the fuel energy input is converted into useful work and the other major is rejected as heat via cooling system and exhaust gases. Moreover, this engine poses a major cause for automobile pollution. Epidemiological evidence that link auto-pollution to high human mortality rate is robust. This compels governments to stipulate stringent emission standards. Thus, decrease in fuel consumption, exhaust emissions without compromising efficiency is the prime factor. These challenges have generated impetus to researchers worldwide in the automotive field. The Thermal Barrier Coating (TBC) has been recognized as showing considerable promise for IC engines. TBCs are basically ceramic coatings with ultra low thermal conductivity deposited on engine components thereby making an insulated engine. This minimizes the heat transfer to the cooling system due to which it gets the name Low Heat Rejection (LHR) engine. Likewise, Bio-diesel too has a potential as a promising alternative fuel to their diesel counterparts while being renewable, sustainable, and environmental friendly. In this work, the comparative effect of performance and emission characteristics of a standard compression ignition engine (STD) and partially stabilized zirconia (PSZ) coated (LHR) engine are investigated. Air Plasma spray (APS) technique is utilized for deposition of PSZ on the piston crown of the test engine to a thickness of 175μm, while the bond-coat Al2O3 to 125 μm. Thereby making a 300μm thickness of TBC. The effect of Bio-diesel - Animal-Tallow-Methyl-Ester (ATME) on LHR engine is analyzed. The experimental work is carried out on 4-stroke, single cylinder, naturally aspirated, water cooled DI diesel engine. The results showed improved efficiency, fuel consumption and exhaust emissions except for NOx.

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