Biofuel Characteristics in Micro Turbojet Engine Application


Ing Huang Tan

Date of Award


Degree Name

Master of Science in Engineering


Mechanical and Aerospace Engineering

First Advisor

Dr. William W. Liou

Second Advisor

Dr. Tainshu Liu

Third Advisor

Dr. Javier M. Montefort


Biofuel, turbojet, emission, performance

Access Setting

Masters Thesis-Abstract Only

Restricted to Campus until



The engine performance and fuel consumption of a micro gas turbojet engine running mixtures of B1OO biodiesel fuel and kerosene are reported in this paper. The fuel blends include mixture fractions from 0% to 100% B1OO biofuel. The engine characteristic are recorded and analyzed in terms of the different fuel mixture contents. The results show that the engine performed consistently well in the wide range of variation of fuel mixtures. It was found that, compared with using kerosene, the engine produced higher thrust using B1OO biofuel for the same fuel volume flow rate, resulting in a significant decrease of thrust specific fuel consumption at all engine speed tested. Based on our purchasing cost, an estimate projects a significant saving using the B1OO. A separate set was also run with HJ fuel from dynamic fuels and JP-8 fuel. Emission data was collected and analyzed. Characteristic of the different fuels on the engine were studied and discussed.


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