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Title: Computational tools for pulverized-coal combustion. Second quarterly report, July 1981-September 1981. [Combustion model COMO]

Technical Report ·
OSTI ID:5989670

The general objective is to develop and verify a computer code capable of modeling the major aspects of pulverized-coal combustion. The combustion model (COMO) is based mainly on an existing Babcock and Wilcox computer program. The model consists of a number of relatively independent modules that represent the major processes involved in pulverized-coal combustion. These modules will be continually upgraded over the course of the contract. Version 1 of COMO will model all of the major features of pulverized-coal combustion but with a number of simplifying assumptions. It will be used primarily to determine a satisfactory means of integrating the numerical models of the combustion processes into an overall combustion model. Later versions will relax these assumptions and incorporate state-of-the-art combustion information. During the first quarter, detailed life-of-the-project task descriptions were prepared, literature searches were conducted, and process models were selected for Version 1. Code development guidelines were prepared and reviewed with each task leader; the guidelines present the information required to allow process modules to be developed relatively independently, while providing for the subsequent integration of these modules into COMO. During this quarter, the formulation and coding of the Version 1 gas-phase turbulence, chemistry and radiation models was completed. Test cases were run for each model, and good agreement was obtained with other analyses and with data when available. Work on the solid-phase flow and radiation models was initiated and will continue next quarter. A formal method for documenting COMO was investigated, and preliminary specifications were developed. Two models are being documented as test cases, and the results will be reviewed and used to establish final specifications.

Research Organization:
Babcock and Wilcox Co., Alliance, OH (USA). Research and Development Div.
DOE Contract Number:
AC22-81PC40265
OSTI ID:
5989670
Report Number(s):
DOE/PC/40265-2; ON: DE82003592
Country of Publication:
United States
Language:
English