• Vol 7, No 8 (2016)
  • Mechanical Engineering

Deposit Characterization of a Diesel Engine Combustion Chamber by Droplets at Hot Chamber Temperature: Effect of Temperature on Evaporation Time and Deposit Structure

Muhammad Taufiq Suryantoro, Bambang Sugiarto, Danniel Chistian, Bintang Samudra, Zofarizal Gusfa


Publish at : 30 Dec 2016 - 00:00
IJtech : IJtech Vol 7, No 8 (2016)
DOI : https://doi.org/10.14716/ijtech.v7i8.6936

Cite this article as:
Suryantoro, M.T.., Sugiarto, B.., Chistian, D.., Samudra, B.., Gusfa, Z.., 2016. Deposit Characterization of a Diesel Engine Combustion Chamber by Droplets at Hot Chamber Temperature: Effect of Temperature on Evaporation Time and Deposit Structure. International Journal of Technology. Volume 7(8), pp.1373-1381
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Muhammad Taufiq Suryantoro Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Bambang Sugiarto Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Danniel Chistian Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Bintang Samudra Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Zofarizal Gusfa Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
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Abstract

In 2016, the mandatory use of biodiesel as a substitute fuel by up to 20%, as introduced by the Indonesian Ministry of Energy and Mineral Resources, forced vehicle manufacturers to invent suitable engines that would accept biodiesel. The use of biodiesel in such a large proportion is highly risky, particularly due to the formation of deposits in the combustion chamber engines. The previous method of fuel droplets are placed on a hot plate approach produces deposits are slightly different from those generated by a real engine, therefore to obtain realistic deposits it is necessary to modify this method so temperatures as hot as those in a real engine. In this study, the potential deposit formation of biodiesel fuel was examined by conducting the deposition process and the evaporation of fuel on a stainless-steel plate (SS), which was placed in a closed space. Deposit characterization was carried out on a hot plate using Scanning Electron Microscopy (SEM). The test results showed differences in the structures of the deposits produced by biodiesel and diesel fuel; fine structures were seen in the former, while those of the latter were rougher and more porous. Deposit results that are similar to what is seen in a real engine will be very helpful for knowing the patterns, structures, and mechanism of the formation of deposits in such an environment.

Antioxidants; Biodiesel; Deposits; Structure; Test rig