Mathematical modelling of three-dimensional heat transfer from the flame in combustion chambers

Conference · Fri Aug 01 00:00:00 EDT 1980 · Symp. (Int.) Combust., (Proc.); (United States)

OSTI ID:5221765

Xu, X C

Mathematical modelling with the Monte-Carlo solution and the finite difference method is used to solve the integral-differential equations of the three-dimensional heat transfer process from flame in combustion chambers of furnaces. By using this kind of mathematical modelling, the combustion chamber volume and its walls can be divided into thousands of elements for calculation; both the temperature distribution of the gases in the combustion chamber volume and the heat flux distribution on its walls can be solved easily. With the modified method, statistical modelling calculation of the radiant energy, speeding up the convergence of the solution, consideration of the absorption coefficient of the gray gases in the combustion chamber as a function of the coordinate in space, and consideration of the influence of the fouling factor of the walls on heat transfer, make the calculated results quite satisfactory. 15 refs.

• Research Organization: Tsinghua Univ, Peking, China
• OSTI ID: 5221765
• Report Number(s): CONF-800809-
• Journal Information: Symp. (Int.) Combust., (Proc.); (United States), Conference: 18. combustion symposium, Waterloo, Canada, 17 Aug 1980
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMBUSTION CHAMBERS
HEAT TRANSFER
FINITE DIFFERENCE METHOD
FLAMES
FOULING
MATHEMATICAL MODELS
MONTE CARLO METHOD
THREE-DIMENSIONAL CALCULATIONS
WALLS
ENERGY TRANSFER
ITERATIVE METHODS
NUMERICAL SOLUTION
421000* - Engineering- Combustion Systems
420400 - Engineering- Heat Transfer & Fluid Flow