A Comprehensive Assessment on Combined Effect of Thermal Barrier Coating and Emulsification Techniques on Engine Behavior of a Mahua Oil Based Diesel Engine

Paper #:
  • 2017-01-0873

Published:
  • 2017-03-28
Citation:
Masimalai, S., Mayakrishnan, J., and Ganesan, N., "A Comprehensive Assessment on Combined Effect of Thermal Barrier Coating and Emulsification Techniques on Engine Behavior of a Mahua Oil Based Diesel Engine," SAE Technical Paper 2017-01-0873, 2017, https://doi.org/10.4271/2017-01-0873.
Pages:
10
Abstract:
This paper presents a comprehensive study on using MO (Mahua oil) as fuel effectively in a diesel engine by adopting emulsification and TBC (Thermal Barrier Coating) techniques. A mono cylinder diesel engine was used for the study. Initially trials were made on the engine using neat diesel (ND), Neat Mahua oil (NMO) as fuels. In the second phase, NMO was converted into its stable emulsion (called as MOE) and tested in the engine. Finally thermal barrier coating of 0.2 mm was made on the piston, valves and cylinder head of the engine using the ceramic power of Al2O3 and the engine was tested using NMO and MOE as fuels in the TBC engine. Results indicated improvement in BTE (brake thermal efficiency) with MOE as compared to NMO mainly at high power outputs in the unmodified engine. The maximum BTE was found as 31.5% with ND, 27.2% with NMO and 30.4% with MOE at the peak power output. Reduced smoke, HC (hydrocarbon), CO (carbon monoxide) and NOx (oxides of nitrogen) emissions were found with MOE mainly at high power outputs. Engine with TBC mode significantly increased the performance and reduced all the emissions (except NOx) at all power outputs with both NMO and MOE. Combustion parameters indicated shorter ignition delay and combustion duration with both NMO and MOE under TBC mode. It was concluded that combining emulsification and TBC techniques could improve the performance of a diesel engine significantly using MO as fuel at all power outputs.
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