Accession Number : AD0467037

Title :   MULTIFUELED THERMAL-ENERGY-CONVERSION SYSTEMS.

Descriptive Note : Quarterly progress rept. no. 1, 1 Jan-31 Mar 65,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OH

Personal Author(s) : Hazard, Herbert R. ; Hunter, Harvey H. ; Ensminger, Dale

Report Date : 31 MAR 1965

Pagination or Media Count : 35

Abstract : Development of an ultrasonic atomizer, 1 transistorized electronic driver, a burner, and fuel metering equipment was started. Very good atomization has been demonstrated at fuel rates up to twice those needed for the demonstration burner. A satisfactory transistorized driver unit providing 100-kc power has been developed, and major improvements in efficiency have been made. The total power input of the present laboratory atomizer is about 10 watts, but it is anticipated that this can be reduced by half with further development. Various burner geometries have been evaluated in terms of the amount of excess air required for clean, smokeless combustion, and the ability to produce the required temperature and heat flux. Suitable temperature and heat flux have been achieved, but considerable development remains in order to achieve uniform temperature and heat flux distribution, and minimum excess air for combustion. The effect of excess air is to reduce over-all efficiency, requiring more fuel input. Evaluation of capillary tubes and orfices as fuel meters showed a very large effect of fuel viscosity. It appears probable that some type of metering valve will be required. (Author)

Descriptors :   (*COMBUSTION CHAMBERS, THERMOELECTRICITY), (*THERMOELECTRICITY, GENERATORS), FUEL INJECTORS, FUELS, FUEL OIL, DISTILLATION, SPECIFIC GRAVITY, COMBUSTION, VISCOSITY, ULTRASONIC RADIATION, ATOMIZATION, CLAMPS, TORQUE, TRIGGER CIRCUITS, ELECTRICAL IMPEDANCE, ENERGY CONVERSION.

Distribution Statement : APPROVED FOR PUBLIC RELEASE