09-09-2016, 12:08 PM
ANALYSIS OF COMBUSTION, PERFORMANCE AND EMISSION CHARACTERISTICS OF A BIOFUELED LOW HEAT REJECTION DIESEL ENGINE
1454083751-PHASE1FIRSTREVIEW.pptx (Size: 86.5 KB / Downloads: 9)
INTRODUCTION
In order to overcome the above mentioned problems alternate fuels and thermal barrier coating (TBC) of I.C.Engines are recommended
I.C.Engines with their cylinder head, walls, valves, piston insulated by thermal barrier coating is referred to as low heat rejection (LHR) engine
LHR aims to reduce the amount of heat released by reducing the heat lost to the coolant
INFERENCE FROM THE JOURNALS
The basic requirements of a good TBC are
Low thermal conductivity.
No phase transformation in the range of room temperature to in-cylinder temperature.
High melting point.
Chemical inertness.
Same thermal expansion coefficient with metallic substrate.
Good adherence capability with metallic substrate.
Low sintering rate of porous microstructure.
EXPECTED OUTCOME
Total combustion duration may increase
Brake thermal efficiency may increase
Specific fuel consumption may decrease
NOx emissions may increase
Smoke, Carbon monoxide, Hydro carbon emissions may decrease
CONCLUSION
Thus considering global warming, depletion of fuels, increase in cost of fuels
An attempt is made to improve the performance and to reduce the emissions of the engine using MULLITE as TBC and PONGAMIA OIL as an alternate fuel.