Combustion of Gasoline for Meso Scale Power Applications
DOI:
https://doi.org/10.13052/dgaej2156-3306.3211Keywords:
Meso Scale Power Systems, Fuel Vaporization, Flow Blurring Injector, Combustion ChamberAbstract
Access to the electric power grid in developing countries should
not need large-scale infrastructure if clean, inexpensive and efficient
individual power devices were available. There is demand for portable power applications that output power in the hundreds of watt
range. These systems are referred to as meso-scale systems. Typical
applications include non-grid connected homes, remote billboards,
automotive auxiliary equipment, military personnel, campsites and
human prosthetic devices. High power per unit mass is a very important requirement for these systems which make liquid hydrocarbons
an ideal choice for the energy source. The issue with hydrocarbon
fuels is that combustion at low flow rates (~ ml/min) is difficult. Injectors or vaporizers, such as those used in automotive engines, typically
work at high pressures and relatively high flow rates. Electrostatic
injectors can vaporize at low flow rates but they are cumbersome
since they require high electric fields and are not suited for portable
applications. The use of a flow blurring injector shows promise. A
flow blurring injector which vaporizes liquid hydrocarbons at low
flow rates has been developed. A system was built at Chiang Mai
University, Thailand (CMU) to characterize the parameters effecting the combustibility of a hydrocarbon fuel and to investigate the
suitability of this injector for use in meso-scale power systems. The
results indicate that it could be used to generate power but care has
to be taken to ensure flame stability.
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