Investigating the Impact of Oxygenated Additives (DEE, DME & MTBE) on Engine Performance and Emission Reductions in Simarouba Methyl Ester Blends

Prabhahar M; Prakash S; Karpaga Vinayagam B; Dhanraj T; Huaizhi Zhang

doi:10.54392/irjmt25310

Authors

Prabhahar M Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Mission’s Research Foundation, Deemed to be University, Tamil Nadu, India Author https://orcid.org/0000-0002-4179-7293
Prakash S Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Mission’s Research Foundation, Deemed to be University, Tamil Nadu, India Author https://orcid.org/0000-0001-7038-2903
Karpaga Vinayagam B Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Mission’s Research Foundation, Deemed to be University, Tamil Nadu, India Author
Dhanraj T Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Mission’s Research Foundation, Deemed to be University, Tamil Nadu, India Author
Huaizhi Zhang Faculty of Engineering & Technology, Shinawatra University, Bang Toei, Sam Khok District, Pathum Thani 12160, Thailand Author

DOI:

https://doi.org/10.54392/irjmt25310

Keywords:

Simarouba Methyl Ester, Diethyl Ether, Dimethyl Ether, Methyl Tert-Butyl Ether, Energy Efficiency

Abstract

A comparative study of three additives, such as Diethyl Ether (DEE), Dimethyl Ether (DME), and Methyl Tert-Butyl Ether (MTBE) on the performance and emissions of a B20 Simarouba Methyl Ester mix in a direct injection (DI) diesel engine. The results show that DEE improves brake thermal efficiency (BTE) by about 5.5%, and also improves exhaust gas temperatures (EGT) about 10%. The reason is the high cetane number in the additive and combustion characteristics. The effect of DME, which reduces emissions of hydrocarbons (HC) up to 25% and carbon monoxide (CO) up to 30%, because of high oxygen content and efficient combustion properties, makes it the most effective additive. The DME additive also reduces smoke emissions in the range of 20% due to higher combustion efficiency. But the DEE additive which leads in reduction of nitrogen oxide (NOx) in the range of 25% due to lower peak combustion temperatures. The comparative of MTBE gives certain benefits that are consistently less effective compared with DEE and DME for the emission and performance metrics. The comparative results of three additives, the DME, are advised for minimizing the CO, HC, and smoke emissions; the DEE is the supreme additive for improving engine performance and lowering NOx.

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