Experimental spray investigation of methyl ester and ethyl ester type biodiesel fuels in a constant volume combustion chamber
Ulu, Anılcan, author.

Experimental spray investigation of methyl ester and ethyl ester type biodiesel fuels in a constant volume combustion chamber

Ulu, Anılcan, author.

Yazar Ek Girişi
Ulu, Anılcan, author.

Fiziksel Tanımlama
xiv, 139 leaves: color illustrarions, charts;+ 1 computer laser optical disc.

Biodiesel fuels are promising fuels that can reduce pollutant emissions from diesel engines. Therefore, they are still being investigated in every aspect. In this study, it was aimed at comparing the spray characteristics of methyl ester and ethyl ester type biodiesel fuels with those of fossil diesel fuel. Besides, this study aimed to investigate the spray characteristics of ethyl esters on which few studies have been done, and to help eliminate this gap in the literature. For these purposes, 4 different methyl esters from corn, sunflower, canola and cotton oils, and 2 different ethyl esters from corn and sunflower oils were produced. Commercial diesel fuel was used to compare the characteristics of these fuels. Firstly, physical properties of the fuels produced were investigated to better understand the spray investigation, and it was observed that biodiesel fuels had bigger density and viscosity values than fossil diesel fuel. Additionally, it was found that methyl esters had larger density and smaller viscosity values than ethyl esters. After that, spray characteristics of all fuels were investigated in a constant volume combustion chamber under ambient pressures of 0, 5 and 10 bar, and injection pressures of 600 and 800 bar. Then, these fuels were compared to each other. After the experiments, biodiesel fuels were found to have longer spray penetration lengths and narrower spray angles than diesel fuel, although there were no significant differences between them. This may be due to higher density and viscosity values of biodiesel fuels. Furthermore, no significant distinctions were found between the spray characteristics of ethyl esters and methyl esters. In addition, it was observed that ambient and injection pressures were important parameters affecting the spray pattern. As a result, it was obtained that biodiesel-air mixing was slightly worse than diesel-air mixing. However, their potential to reduce pollutant emissions may cause this difference to be ignored. Moreover, it was found that ethyl esters had similar spray characteristics as methyl esters. Hence, ethyl esters are promising to replace methyl esters.

Konu Başlığı
Biodiesel fuels.
Diesel motor—Alternative fuels.
Diesel motor—Fuel.
Diesel fuels.

Yazar Ek Girişi
Özkol, Ünver

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Mechanical Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Mechanical Engineering.
İzmir Institute of Technology: Mechanical Engineering--Thesis (Master).

Elektronik Erişim

KütüphaneMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTETezT002155TP359.B46 U478 2020Tez Koleksiyonu