Radiative heat transfer in circulating fluidized bed furnaces / Baskakov A.P., Leckner B. // Powder Technology. - 1997. - V. 90, l. 3. - P. 213-218.

ISSN:

00325910

Type:

Article

Abstract:

Three methods of estimating the effective emissivity of a gas-particle suspension are compared and the radiative heat transfer coefficient of an isothermal suspension is defined. Heat flux measurements obtained from circulating fluidized bed combustors are examined. Radiation from a particle suspension with core temperature dominates the radiative heat transfer in the upper part of the furnace, where the particle density is low and no substantial particle boundary layers are formed. Over the lower parts of the heat transfer surfaces, where significant thermal and particle boundary layers are present, the radiative heat flux is dominated by emission from the relatively low temperature particle layer in the vicinity of the heat receiving surface.

Author keywords:

circulating fluidized beds; heat transfer; radiative heat transfer

Index keywords:

article; fluidized bed; particle size; physical chemistry; radiation; technology; temperature; theoretical study; Boundary layers; Density (specific gravity); Heat flux; Heat radiation; Heat transfer

DOI:

10.1016/S0032-5910(96)03214-7

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030615440&doi=10.1016%2fS0032-5910%2896%2903214-7&partnerID=40&md5=fe40415bb1a102362f2f4ea8f4f5294b

Соавторы в МНС:

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030615440&doi=10.1016%2fS0032-5910%2896%2903214-7&partnerID=40&md5=fe40415bb1a102362f2f4ea8f4f5294b
Affiliations	Department of Thermal Engineering, Ural Technical University, Ekaterinburg 620002, Russian Federation; Department of Energy Conversion, Chalmers University of Technology, S-412 96 Göteborg, Sweden
Author Keywords	circulating fluidized beds; heat transfer; radiative heat transfer
References	Divilio, R.J., Boyd, T.B., (1994) Proc. 4th Int. Conf. on Circulating Fluidized Beds, Somerset, PA, 1994, pp. 334-339. , A.A. Avidan (ed.); Hottel, H.C., Sarofim, A.F., (1967) Radiative Transfer, , McGraw-Hill, New York; Levdanskii, V.V., Leitsina, V.G., (1990) J. Eng. Phys., 59, p. 586; Brewster, M.Q., (1986) Trans. ASME, 108, p. 710; Brewster, M.Q., (1983) ASME Report, 83 WA-HT-82; Borodulya, V.A., Kovenskii, V.I., (1979) Heat and Mass Transfer: Physical Basis and Methods, pp. 31-34. , ITMO AN BSSR, Minsk; Borodulya, V.A., Kovenskii, V.I., (1984) J. Eng. Phys., 26, p. 276; Brewster, M.Q., Kunitomo, T., (1983) Proc. ASME-JSME Thermal Engineering Joint Conf., 1983, 4, pp. 21-26; Leckner, B., Andersson, B.Å., (1992) Powder Technol., 70, p. 303; Andersson, B.Å., Johnsson, F., Leckner, B., (1989) Trans. Inst. Meas. Control, 11, p. 108; Isachenko, V.P., Osipova, V.A., Sukomel, S.A., (1981) Heat Transfer, , Energoatomizdat, Moscow, in Russian; Andersson, B.Å., Leckner, B., (1992) Int. J. Heat Mass Transfer, 35, p. 3353; Pich, R., (1962) Wärme, 69, p. 114; Wu, R.L., Grace, J.R., Lim, C.J., Brereton, C.M.H., (1989) AIChE J., 35, p. 1685; Grigoriev, V.A., Zorin, V.M., (1982) Heat and Mass Transfer, , Energoatomizdat, Moscow, in Russian; Werdermann, C.C., Werther, J., (1993) Proc. 4th Int. Conf. Circulating Fluidized Beds, pp. 428-435. , A.A. Avidan (ed.), AIChE; Zhang, W., Tung, Y., Johnsson, F., (1991) Chem. Eng. Sci., 46, p. 3045
Correspondence Address	Baskakov, A.P.; Department of Thermal Engineering, Ural Technical University, Ekaterinburg 620002, Russian Federation
CODEN	POTEB
Language of Original Document	English
Abbreviated Source Title	POWDER TECHNOL.
Source	Scopus