Entrained-flow gasification at elevated pressure. Quarterly technical progress report No. 1, 1 March-31 May 1985

Technical Report · Sat Jun 15 04:00:00 EDT 1985

OSTI ID:6482508

Lindsay, J D; Smoot, L D

The three main tasks of the contract involve: (1) entrained coal gasification measurements, (2) improvement in the one- and two-dimensional computer codes for gasification processes, and (3) application of results to industrial and METC needs. The installation of the laboratory gasifier is 95% complete. Elevated pressure tests and injector characterization tests are pending completion of the installation. Analysis of gasifier data collected during the previous contract period has been completed. Laser Doppler measurements in cold flows simulating gasifier flows with and without swirl have been made. Improvements in LDV data collection and reduction methods have been made, especially for tangential velocity measurement. Insight into flow stability, turbulence properties, and swirl effects has been acquired through analysis of the data. Plans are being considered for a major revision of the particle dispersion submodel of PCGC-2 in which Lagrangian equations for particle number density will be solved simultaneously with other Lagrangian variables. Use of these Lagrangian particle density calculations are expected to significantly increase the accuracy of particle phase calculations. Improved accuracy in the char-oxidation kinetic constants used by PCGC-2 has been obtained through rigorous nonlinear least-squares analysis of original data. Increased numerical efficiency has been achieved with changes in code structure and compiling methods. A self-adapting underrelaxation scheme is also being adapted for use in PCGC-2. 49 refs., 14 figs., 1 tab.

• Research Organization: Brigham Young Univ., Provo, UT (USA). Combustion Lab.
• DOE Contract Number: AC21-85MC22059
• OSTI ID: 6482508
• Report Number(s): DOE/MC/22059-T1; ON: DE85014148
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
COAL GASIFICATION
COMPUTER CALCULATIONS
COMPUTER CODES
CORRELATIONS
DATA
DATA ANALYSIS
DIAGNOSTIC TECHNIQUES
DOCUMENT TYPES
ENTRAINMENT
EXPERIMENTAL DATA
GASIFICATION
INFORMATION
MANUALS
MATHEMATICAL MODELS
MEDIUM PRESSURE
NUMERICAL DATA
ONE-DIMENSIONAL CALCULATIONS
P CODES
TESTING
THERMOCHEMICAL PROCESSES
TWO-DIMENSIONAL CALCULATIONS
VALIDATION