Experimental Investigation Of A High-Efficiency Engine With Ceramic-Coated Cylinder Head, Supercharger, And Scrt Emission Control

Abstract

The effect of thermal barrier coating (TBC) on the cylinder components like piston crown top, cylinder liner, cylinder head inside and valves . The thermal barrier coated engines are otherwise known as low heat rejection (LHR) engines. Due to the insulation of the cylinder wall the heat transfer through the cylinder walls to the cooling system is reduced which change the combustion characteristics of the diesel engine. To know the changes during combustion the steady-state LHR engines operation have been studied by applying either the first or second law of thermodynamics. The state of the art of the thermal barrier coating is the plasma spray Zirconia . In addition, other material systems have been investigated for the next generation of TBC. The study also focuses on coating method for Plasma Spray Zirconia (PSZ) to improve coating under high load and temperature cyclical conditions encountered in the real engine. The effect of insulation on engine performance, heat transfer characteristics, combustion and emission characteristics are studied and compared with standard (STD) diesel engine.
A supercharger is added to the engine to improve its performance and efficiency. Compared to other boosting options, superchargers offer very rapid response in intake manifold pressure and low exhaust system heat absorption. Therefore, superchargers can be used to improve low speed transient response in downsized and down sped engines. Superchargers have been also used to improve power and torque density in engines using over-expanded cycles, as well as in hybrid vehicle drive trains.
The fuel used is waste plastic pyrolysis oil (WPO) to reduce pollution Fast exhaustion of oil resources and increase in energy demand have focused the researchers to find alternate ways to produce high quality oils that could replace fossil fuels. The idea of waste to energy recovery is one of the promising techniques for managing the waste plastic. Waste plastics are attractive for energy conversion because of their high heat of combustion and bulk availability. Exponential rate of increase in plastic production happens in every year due to the wide range of plastic appliances in domestic as well as industrial purposes. The drastic increase in the plastics production naturally lead to large amount of plastic waste that endangers the environment because of their disposal problems
. The conversion of plastic to 2 high quality liquid oil through pyrolysis process is highly advisable as the oil produced has high calorific value than that of commercial fuel. This paper describes commonly used verities of plastics and potential of pyrolysis process to produce fuel using them.

DOI: https://doi-ds.org/doilink/07.2025-76959626