caa a22 4500 469126493 CHVBK 20180323133152.0 cr unu---uuuuu 170328e19921001xx s 000 0 eng 10.1007/BF02705294 doi (NATIONALLICENCE)springer-10.1007/BF02705294 Coal combustion characteristics in a fluidized bed combustor with a draft tube [Elektronische Daten] [Woon-Jae Lee, Yong-Jun Cho, Jung-Rae Kim, Sang Kim] The effects of gas velocity to draft tube (3-6 Um), bed temperature (800-900°C) and excess air ratio (0-30%) on the total entrainment rate, overall combustion efficiency and heat transfer coefficient have been determined in an internally circulating fluidized bed combustor with a draft tube. The total entrainment rate increases with an increase in gas velocity to draft tube, but decreases with increasing bed temperature and excess air ratio. The overall combustion efficiency increases with increasing excess air ratio, but decreases with increasing gas velocity to draft tube. The overall combustion efficiency obtained in internally circulating fluidized beds was found to be somewhat higher than that in a bubbling fluidized bed combustor. Korean Institute of Chemical Engineering, 1992 Lee Woon-Jae Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut Cho Yong-Jun Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut Kim Jung-Rae Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut Kim Sang Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut Korean Journal of Chemical Engineering Springer-Verlag 9/4(1992-10-01), 206-211 0256-1115 9:4<206 1992 9 11814 https://doi.org/10.1007/BF02705294 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02705294 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Woon-Jae Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut NATIONALLICENCE 700 1- Cho Yong-Jun Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut NATIONALLICENCE 700 1- Kim Jung-Rae Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut NATIONALLICENCE 700 1- Kim Sang Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305-701, Taejon, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer-Verlag 9/4(1992-10-01), 206-211 0256-1115 9:4<206 1992 9 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer