5219
Ahmed Mahfouz Mohamed Mostafa Abd El-Gawad
STUDY OF COMBUSTION CHARACTERISTICS OF WASTE COOKING OIL
waste cooking oil, exhaust emissions, coaxial buner. inflame temperatures
The depletion of fossil fuels creates the fuel crisis, which is one of the most important problems that faced any country in the world. The aim of this work is to introduce a new fuel (waste cooking oil and/or its blends with light diesel oil) with low emissions, cost and acceptable performance. It also addresses the challenge of getting rid of waste cooking oil. It includes studying the combustion characteristics of waste cooking oil blends as well as the resulting of flame structure.Collected waste cooking oil from restaurants and domestic regions were filtered and heated several times before being blended with light diesel oil at different proportions. The blends are burned in an oil burner of 102 kW output power. This burner operation is controlled by electronic programed card interfaced with a computer using Labview software. The combustion is taking place inside a horizontal water cooled jacket furnace. Measurements of emissions gases and inflame temperatures carried out by (LANCOM series II) gas analyzer and thermocouple S-type respectively.It has been seen that, Light diesel oil tends to produce sooty flame characterized by yellow or orange color when compared to waste cooking oil. The degree of luminosity of 100% waste cooking oil flame is different from any other blends due to its high carbon and oxygen contents. The flame tends to be white to yellow colored. The minimum CO emissions is achieved by using a blend of 80%WCO at λ=1.5 as well as 100% waste cooking oil in the range from λ=1.35 to 1.5. Light diesel oil also emits the lowest unburned hydrocarbons in the range of λ=1.5 to 1.35. The maximum exhaust temperature is achieved when blends of 0%, 40%, and 60% WCO are burned at λ=0.843. The tallest flame is obtained for a blend 60%WCO blend and λ=0.843 as well as light diesel oil at λ =0.843.
2016
M.Sc
Helwan
Engineering