CHEMFLUB: a computer code model for fluidized bed coal gasification reactors. Volume I. Technical document

Technical Report · Tue May 01 04:00:00 EDT 1984

OSTI ID:6292572

Mitchell, D

This report is the result of an analysis of the CHEMFLUB code. The mathematical formulation of the models for the motion of fluids and particles is discussed. In addition, the closure equations and chemistry models are reviewed. The method of solution of these equations is analyzed. The stability and convergence criteria in CHEMFLUB are also presented. The solution algorithms for each portion of the system of equations are discussed. The overall solution technique which is based on these algorithms is presented in section D and table III-9 in Chapter III. Those desiring a concise explanation of the CHEMFLUB methodology should review these portions of Chapter III first. CHEMFLUB is a sparsely documented and unique computer code. For example, it uses a steady-state gas momentum equation to describe a time dependent problem. As a result, this document is not intended to justify the algorithms used in CHEMFLUB but simply to explain what the code does. Finally the method used in CHEMFLUB to set up the solution grid and establish boundary conditions are described. 7 references, 17 figures, 10 tables.

• Research Organization: BDM Corp., McLean, VA (USA)
• DOE Contract Number: AC21-82MC19265
• OSTI ID: 6292572
• Report Number(s): DOE/MC/19265-1677; ON: DE85001972
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALGORITHMS
C CODES
CHEMICAL REACTORS
COAL GASIFICATION
COMPUTER CODES
COMPUTERIZED SIMULATION
FLUIDIZE
GASIFICATION
MATHEMATICAL LOGIC
SIMULATION
THERMOCHEMICAL PROCESSES