Prof. Ali Mahmoud Ali Attia :: Publications:

The strengthened requirements of new emission norms and the limited fuel resources are the major challenges for researchers over the world. The use of biofuels produced from vegetable oil will be a promising solution. In this case, Jojoba oil comes from very surprising plant as its seed contains 40-60% of its weight as raw oil and grows in desert. The trans-esterification process is used to convert jojoba oil into a Jojoba Methyl Ester (JME). This study aims to characterize the flame of JME as an alternative fuel in the gas turbines. Using of the premixed flame resulted in higher combustion efficiency and low emissions. The premixed flames for liquid fuels can be realized via use of lean premixed pre-vaporized (LPP) combustion method. In this work the jet fuel and blends of jet-JME fuel (with JME volume faction of 10, and 20%) are burned with LPP technique keeping the same equivalence ratio as it is used for burning the base jet fuel to determine the possibility to use the fuel mixture without any modifications in a specific LPP combustor. The main results indicate that, as volume content of JME increase the NOx emissions decrease to be lower than 10 ppm in case of B20. Moreover, the CO emission in case of B20 is higher than that of the jet fuel but at the end of the test section it does not exceed 0.15 %. In the same way, B20 produces higher UHC emissions than the jet fuel; however, at the end of the test section it does not exceed 80 ppm. So it can be concluded that blended Jojoba biodiesel can be used as an alternative fuel for jet fuel.