Connected block and effective conductivity (CONBEC) computer program to predict heat flow through multicomponent refractory lined gasifier vessel walls. Users manual
CONBEC is a computer programmed model which determines the steady-state heat flow through multicomponent refractory-lined gasifier vessel walls. The model accounts for the effects of lining thickness, porosity, gaps, cracks, refractory composition, physical form, anchor spacing and configuration, gas pressure and composition, and other parameters on heat flow. CONBEC is based on a combination of the CONnected Block and Effective Conductivity techniques. The refractory wall is described as a series of blocks, each with its own effective thermal conductivity. The connected blocks are used to handle nonlinear temperature effects, material difference, and location effects. Parallel heat flow paths through the wall are used to provide for distinct material changes, gaps, conductivity changes, and hot-spot determination. The typical configuration has two parallel heat flow paths. Anchors can be treated as a separate heat flow path or can be left out. The blocks are cross-linked to account for lateral heat flow between the parallel paths. The model is extremely simple to use yet it provides considerable information regarding the importance of material, design, and operational parameters on heat flow in refractory vessel walls and on hot spots. It was developed to be used in the design of material systems for coal gasification vessels and has broad applicability to other refractory linings for furnaces or process vessels.The output results of CONBEC are in good agreement with experimental data obtained for several refractory material systems over a range of wall temperatures, gas compositions, wall thicknesses, crack and gap characteristics, and gas pressures.
- Research Organization:
- Battelle Columbus Labs., OH (United States)
- DOE Contract Number:
- EX-76-C-01-2210
- OSTI ID:
- 5752192
- Report Number(s):
- DOE/FE-2210-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of heat transfer through refractory lined gasifier vessel walls. Quarterly progress report, June 1977--August 1977
Study of heat transfer through refractory lined gasifier vessel walls. Quarterly progress report, December 1976--February 1977
Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
HEAT TRANSFER
COMPUTER CALCULATIONS
PRESSURE VESSELS
COAL GASIFICATION
HEAT FLOW
MATHEMATICAL MODELS
REFRACTORIES
CONTAINERS
ENERGY TRANSFER
GASIFICATION
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
990200 - Mathematics & Computers