The Microstructure of Pulverized Coal-Air Flames, I. Stabilization on Small Burners and Direct Sampling Techniques

REFERENCES

• Andrews , G. E. and Bradley , D. ( 1972 ). The burning velocity of methane-air mixtures . Combustion and Flame , 19 , 255 .
   Google Scholar
• Badzioch , S. and Hawksley , P. G. W. ( 1970 ). Kinetics of thermal decomposition of pulverized coal particles . Ind. Eng. Chem. Proc. Design Dev. , 9 , 521 .
   Web of Science ®Google Scholar
• Beachey , J. E. and Milne , T. A. ( 1977 ). The quenching behavior of coal dust-air flames. Paper submitted for publication to Combustion and Flame .
   Google Scholar
• Beer , J. M. and Chigier , C. N. ( 1969 ). Stability and com¬bustion intensity of pulverized-coal flames; effect of swirl and impingement . J. Inst. Fuel , 42 , 443 .
   Web of Science ®Google Scholar
• Biordi , J. C. , Lazarra , C. P. and Papp , J. E. ( 1977 ). An examination of the partial equilibration hypothesis and radical recombination in l/20th atm methane flames . Sixteenth Symposium {International) on Combustion , August 1976 , Cambridge , Massachusetts , The Com¬bustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Blauwens , J. , Smets , B. and Peeters , J. ( 1977 ). Mechanism of“prompt”nitric oxide formation in hydrocarbon flames . Sixteenth Symposium (International) on Com¬bustion , August 1976 , Cambridge , Massachusetts , The Combustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Bryant , J. T. ( 1971 ). The combustion of premixed laminar graphite dust flames at atmospheric pressure . Com¬bustion Science and Technology , 2 , 389 .
   Web of Science ®Google Scholar
• Burgoyne , J. H. and Long , V. D. ( 1958 ). Some measure¬ments of the burning velocity of coal in air suspensions . Proceedings of the Conference on Science in the Use of Coal , The Institute of Fuel , Sheffield , England , D-16 .
   Google Scholar
• Cassel , H. M. ( 1963 ). Some fundamental aspects of dust flames . U.S. Bureau of Mines, R.I. 6551 .
   Google Scholar
• Cassel , H. M. , Das Gupta , A. K. and Guruswamy , S. ( 1949 ). Factors affecting propagation through dust clouds . Third Symposium on Combustion, Flame and Explosion Phenomena , p. 185 , The Williams and Wilkins Company , Baltimore , Maryland .
   Google Scholar
• Cassel , H. M. , Liebman , I. and Mock , W. K. ( 1956 ). Radi¬ative transfer in dust flames . Sixth Symposium (International) on Combustion , p. 602 , Reinhold Publishing Company , New York .
   Google Scholar
• Cybulski , W. ( 1975 ). Coal dust explosions and their suppression . Translated from Polish, Published for the U.S. Bureau of Mines and NSF by the Foreign Scientific Publication Department of the National Center for Scientific, Technical and Economic Information, Warsaw, Poland. Available from NTIS , Springfield , Virginia .
   Google Scholar
• Essenhigh , R. H. ( 1963 ). The influence of coal rank on the burning times of single captive particles . J. Eng. Power. , p. 183 , July .
   Google Scholar
• Essenhigh , R. H. ( 1977 ). Combustion and flame propagation in coal systems a review . Sixteenth Symposium (International) on Combustion , August 1976 , Cambridge , Massachusetts , The Combustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Field , M. A. , Gill , D. W. , Morgan , B. B. and Hawksley , P. G. W. ( 1967 ). Combustion of pulverized coal . The British Coal Utilization Research Association , Leather-head , England .
   Google Scholar
• Foner , S. and Hudson , R. ( 1953 ). The detection of atoms and free radicals in flames by mass spectrometric techniques . J. Chem. Phys. , 21 , 1374 .
   Google Scholar
• Fristrom , R. M. and Westenberg , A. A. ( 1965 ). Flame structure . McGraw-Hill , New York .
   Google Scholar
• Fuhrmann , E. A. and Koettgen , H. ( 1934 ). Darstellung und temperature stehender kohlenstaub-und kohlen-stauf-gas explosionen . Z. Physik. Chem. , A 169 , 388 .
   Google Scholar
• Ghosh , B. , Basu , D. and Roy , N. K. ( 1956 ). Studies of pulverized coal flames . Sixth Symposium (International) on Combustion , p. 595 , The Combustion Institute, Reinhold Publishing Company , New York .
   Google Scholar
• Ghosh , B. and Orning , A. A. ( 1955 ). Igniting pulverized coal . Ind. Eng. Chem. , 47 , 117 .
   Google Scholar
• Greene , F. T. , Brewer , J. and Milne , T. A. ( 1964 ). Mass spectrometric studies of reactions in flames. I. Beam formation and mass dependence in sampling one-atmosphere gases . J. Chem. Phys. , 40 , 1488 .
   Web of Science ®Google Scholar
• Grumer , J. ( 1975 ). Recent research concerning extinguish¬ment of coal dust explosions . Fifteenth Symposium (International) on Combustion , August 1974 , p. 103 , Tokyo , Japan , The Combustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Grumer , J. and Bruszak , A. E. ( 1971 ). Inhibition of coal dust-air flames . U. S. Bureau of Mines Report of Investigations No. 7552 .
   Google Scholar
• Hamor , R. J. and Smith , I. W. ( 1971 ). Fluidizing feeders for providing fine particles at low, stable flows . Fuel , 50 , 394 .
   Google Scholar
• Hastie , J. W. ( 1973 ). Mass spectrometric analysis of 1 atm flames apparatus and the CH4-O2 system . Combustion and Flame , 21 , 187 .
   Web of Science ®Google Scholar
• Hattori , H. ( 1956 ). Flame propagation in pulverized coal-air mixtures . Sixth Symposium (International) on Combustion , p. 590 , The Combustion Institute, Rein¬hold Publishing Company , New York .
   Google Scholar
• Homann , K. H. , Mochizuki , M. and Wagner , H. Gg. ( 1963 ). Uber den reaktionsablauf in fetten kohlenwasserstoff-sauerstoff-flammen , I. Z. Physik. Chem. N. F. , 37 , 299 .
   Google Scholar
• Howard , J. B. and Essenhigh , R. H. ( 1965 ), The mechanism of ignition of pulverized coal . Combustion and Flame , 9 , 337 .
   Google Scholar
• Howard , J. B. and Essenhigh , R. H. ( 1966 ). Combustion mechanism in pulverized flames . Combustion and Flame , 10 , 92 .
   Google Scholar
• Howard , J. B. and Essenhigh , R. H. ( 1967a ), Mechanism of solid particle combustion with simultaneous gas-phase volatiles combustion . Eleventh Symposium (International) on Combustion , p. 399 , The Combustion Institute , Pittsburgh , Pennsylvania .
   Google Scholar
• Howard , J. B. and Essenhigh , R. H. ( 1967b ). Pyrolysis of coal particles in pulverized fuel flames . I and EC Process Design and Development , 6 , 74 .
   Google Scholar
• Joy , W. K. , Ladner , W. R. and Pritchard , E. ( 1970 ). Laser heating of pulverized coal in the source of a time-of-flight mass spectrometer . Fuel , 49 , 26 .
   Google Scholar
• Kaesche-Krischer , B. and Zehr , J. ( 1958 ). Studies of dust/ air flames . Z. Physik. Chemie , 14 , 284 .
   Google Scholar
• Karn , F. S. , Friedel , R. A. and Sharkey , A. G. ( 1972 ). Studies of the solid and gaseous products from laser pyrolysis of coal . Fuel , 51 , 113 .
   Google Scholar
• Kimber , G. M. and Gray , M. D. ( 1967 ). Rapid devolatiliz-ation of small coal particles . Combustion and Flame , 11 , 360 .
   Web of Science ®Google Scholar
• Knuth , E. L. ( 1973 ). Direct sampling studies of combustion processes . In Springer, G. S. and Patterson, D. J. (Ed.) , Engine Emissions Pollutant Formation and Measurement , Plenum Publishing Corporation , New York , Chap. 9 , p. 319 .
   Google Scholar
• Kobayashi , H. , Howard , J. B. and Sarofim , A. F. ( 1977 ). Coal devolatilization at high temperatures . Sixteenth Symposium (International) on Combustion , August 1976 , Cambridge , Massachusetts , The Combustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Long , V. D. ( 1960 to 1961 ). Laminar coal-dust flames . J. Imperical College Chem. Eng. Set. , 13 , 16 .
   Google Scholar
• Maguire , B. A. , Slack , G. and Williams , A. J. ( 1962 ). The concentration limits for coal dust-air mixtures for up¬ward propagation of flame in a vertical tube . Com¬bustion and Flame , 6 , 287 .
   Google Scholar
• Marshall , W. F. , Palmer , H. D. and Seery , D. J. ( 1964 ). Particle size effects and flame propagation rate control in laminar coal dust flames . J. Inst. Fuel , 37 , 342 .
   Google Scholar
• Mason , W. E. and Wilson , M. J. G. ( 1967 ). Laminar flames of lycopodium dust in air . Combustion and Flame , 11 ( 3 ), 195 .
   Web of Science ®Google Scholar
• Merrill , La V. S. ( 1973 ). The coal-oxygen reaction near the gnition temperature . Fuel , 52 , 61 .
   Google Scholar
• Milne , T. A. and Beachey , J. E. ( 1977 ). The microstructure of pulverized coal-air flames. 11. Gaseous species, particulate and temperature profiles . This journal, following .
   Google Scholar
• Milne , T. A. , Green , C. L. and Benson , D. K. ( 1970 ). The use of the counterflow diffusion flame in studies of inhibition effectiveness of gaseous and powdered agents . Combustion and Flame , 15 , 255 .
   Google Scholar
• Milne , T. A. and Greene , F. T. ( 1966 ). Mass spectrometric studies of reactions in flames. II. Quantitative sampling of free radicals from one-atmosphere flames . J. Chem. Phys. 44 , 2444 .
   Google Scholar
• Milne , T. A. and Greene , F. T. ( 1968 ). Direct mass spectro¬metric sampling of high pressure systems . In Margrave, J. (Ed.) , Applications of Mass Spectrometry in Inorganic Chemistry, Advances in Chemistry Series No. 72 , p. 68 , ACS Publications , Washington , D.C.
   Google Scholar
• Milne , T. A. and Greene , F. T. ( 1969 ). Molecular beams in high temperature chemistry . In Eyring, L. (Ed.) , Advances in High Temperature Chemistry , Vol. 2 , Academic Press , New York .
   Google Scholar
• Milne , T. A. , Vandegrift , E. and Greene , F. T. ( 1970 ). Mass spectrometric observations of argon clusters in nozzle beams. II. The growth kinetics of dimer . J. Chem. Phys. , 52 , 1552 .
   Web of Science ®Google Scholar
• Palmer , K. N. ( 1973 ). Dust Explosions and Fires . John Wiley and Sons , New York .
   Google Scholar
• Proceeding ( 1972 ). Molecular beam sampling conference. Lake of the Ozarks, Missouri , October . Midwest Research Institute , Kansas City , Missouri 64110 .
   Google Scholar
• Singer , J. M. ( 1963 ). I gnition of mixtures of coal dust, methane and air by hot laminar nitrogen jets . Ninth Symposium (International) on Combustion , pp. 407 – 414 , The Combustion Institute, Academic Press , New York .
   Google Scholar
• Smoot , L. D. , Horton , M. D. and Williams , G. ( 1977 ). Propagation of laminar pulverized coal-air flames . Sixteenth Symposium (International) on Combustion , August 1976 , Cambridge , Massachusetts , The Com¬bustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Strehlow , R. A. , Savage , L. O. and Sorenson , S. C. ( 1974 ). Coal dust combustion and suppression . AIAA Paper No. 74–1110, AIAA/SAE 10th Propulsion Conference , San Diego , California , October .
   Google Scholar
• Symposium ( 1975 ). Sampling of dynamic systems . Int. J. Mass. Spec. Ion Physics , 16 , 1 – 191 .
   Google Scholar
• Ubhayakar , S. K. , Stickler , D. B. , von Rosenberg , C. W. , Jr. and Gannon , R. E. ( 1977 ). Rapid devolatilization of pulverized coal in hot combustion gases . Sixteenth Symposium (International) on Combustion , August 1976 , Cambridge , Massachusetts , The Combustion Institute , Pittsburgh, Pennsylvania .
   Google Scholar
• Williams , G. J. and Wilkins , R. G. ( 1973 ). An investigation of the chemical structure of perchloric acid flames. I. The molecular beam sampling apparatus . Combustion and Flame , 21 , 325 .
   Google Scholar