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U.S. Department of Energy
Office of Scientific and Technical Information

Soot formation in synthetic-fuel droplets. Fifth quarterly technical progress report, October 1-December 31, 1981

Technical Report ·
OSTI ID:5429613
The purpose of this research program is to investigate the details of soot formation from liquid fuel droplets and to provide information on methods of minimizing soot formation during synthetic liquid fuels combustion under conditions which minimize the formation of nitric oxides. The program comprises two main tasks; Fuel Screening Studies and Flame Studies. The purpose of the first task is to investigate the impact of fuel properties on particulate production, to establish the importance of droplet size and examine atomizer effects, and to develop techniques for surrogate fuels production. In the second task, fundamental details of soot formation from synfuel droplet combination will be investigated in variable slip velocity configurations. During the past quarter, the Task 1 efforts have concentrated on examining the effects of droplet parameters on particulate emissions from SRC-II heavy distillate, SRC-II middle distillate, and a petroleum No. 6 oil. Results indicate that fuel and slip velocity effects are significant only when mean dropsize of the sprays is large. For such coarse sprays, the SRC-II heavy distillate showed a much greater propensity to form particulate in the < 1 ..mu..m size range (probably soot) under staged conditions than either of the other two fuels. Correlation of smoke emissions suggests this is related to carbon/hydrogen ratio of the fuel. During the reporting period, the majority of the Task 2 efforts were directed toward the design and construction of the reactors required for the second phase of the study. These are the Opposed-Jet Diffusion Burner and the Microspray Reactor. The Opposed-Jet experiment has been completed and successfully test-fired.
Research Organization:
Energy and Environmental Research Corp., Santa Ana, CA (USA)
DOE Contract Number:
AC22-80PC30298
OSTI ID:
5429613
Report Number(s):
DOE/PC/30298-T5; ON: DE82012008
Country of Publication:
United States
Language:
English