Combustion characteristics of synthetic liquid fuels. Quarterly technical progress report,January 1-March 31, 1982
Second quarter work carried out in three closely-related and interacting Project Elements is reported. Experimental work in the MIT Combustion Research Facility (CRF) included measurements on thirteen flames burning SRC-II middle distillate, part of the baseline studies on unstaged turbulent diffusion flames. Results indicated that emissions of NO/sub x/ and solid particles were minimized by injecting the fuel into the high shear regions of the jet, maintaining the minimum degree of swirl necessary for flame stabilization, and operating at low to moderate excess air levels. Diagnostics which are discussed include the laser light scattering extinction apparatus, the laser velocimeter, the laser diffraction spray distribution analyzer, and the techniques to be used for measurement of ammonia and cyanide species concentrations. Chemical kinetics studies on flat-flame burners have continued. Progress on the measurement of H-atom profiles by the Li/LiOH atomic absorption technique is reviewed, and measured absorption profiles for both sodium and lithium are reported. The C/sub 1//C/sub 2/ kinetic model has been improved to give excellent fits with Haynes' data for fuel-rich ethylene/air flames, and a sensitivity study has been carried out. The results indicate that the model is now applicable to the modeling goals of the project. The flame sheet modeling approach to the axisymmetric turbulent diffusion flame has progressed. The calculation of a one-dimensional stretched flame has been completed and a table of the NO/sub x/ formation rate per unit flame surface area has been established for a series of flame surfaces with different fuel/product and oxidant/product compositions. This table is essential for the later computation of the NO/sub x/ formation in a turbulent diffusion flame. 26 references, 27 figures, 8 tables.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge (USA)
- DOE Contract Number:
- AC22-81PC40275
- OSTI ID:
- 6194486
- Report Number(s):
- DOE/PC/40275-2; ON: DE85004103
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
COAL LIQUIDS
COMBUSTION PROPERTIES
ETHYLENE
COMBUSTION KINETICS
FLAMES
CHEMICAL COMPOSITION
MATHEMATICAL MODELS
RESEARCH PROGRAMS
TURBULENCE
NITROGEN OXIDES
CHEMICAL REACTION YIELD
SOOT
ABSORPTION SPECTROSCOPY
AIR
AMMONIA
BURNERS
CHEMICAL REACTION KINETICS
CYANIDES
DIAGNOSTIC TECHNIQUES
DIFFUSION
DISTILLATES
EMISSION
EXPERIMENTAL DATA
FUEL-AIR RATIO
HYDROGEN
LASERS
LITHIUM
MEASURING METHODS
SODIUM
SPRAYS
SRC-II PROCESS
STABILIZATION
TEST FACILITIES
ALKALI METALS
ALKENES
CHALCOGENIDES
COAL LIQUEFACTION
DATA
ELEMENTS
FLUIDS
GASES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
KINETICS
LIQUEFACTION
LIQUIDS
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
YIELDS
090110* - Hydrocarbon Fuels- Properties- (1979-1989)
014000 - Coal
Lignite
& Peat- Combustion