Effect of elevated pressure on fluidization phenomena. Final report
This program consists of five tasks: (1) review of literature on fluidization velocities; (2) extension of existing fluidization correlations; (3) state-of-the-art review concerning flow regime transitions; (4) flow regime data analysis; and (5) identification of data gaps. This report summarizes the results obtained during the contract period. A critical review of the literature concerning the effect of elevated pressure and particle characteristics on minimum fluidization velocity, beginning fluidization velocity, minimum bubbling velocity, total fluidization velocity, and complete fluidization velocity was performed. Fluidization data from various sources were compiled and compared. A fundamental correlation with improved methodology was developed for estimating the minimum fluidization velocity at elevated pressure with good agreement. The developed correlation was found to be applicable at elevated temperature as well. The state-of-the-art of the effect of pressure and particle characteristics on flow regime transitions from bubbling to turbulent fluidization and from turbulent to fast fluidization were reviewed. Available data on the effect of elevated pressure and particle characteristics on flow regime transitions were analyzed, however, the information available in the literature was meager at best. The critical fluidization development areas were identified as the instrumentation development and the experiments carried out with reactive systems, under elevated temperature and pressure, and in large scale fluidization units. Potential research areas which are within the capability of the existing PETC high pressure test facility were also summarized. This was compiled on the basis of a literature survey on currently available literature information in those areas. 54 references, 10 figures, 7 tables.
- Research Organization:
- Westinghouse Electric Corp., Pittsburgh, PA (United States). Research and Development Center
- DOE Contract Number:
- AC22-82PC53036
- OSTI ID:
- 5162116
- Report Number(s):
- DOE/PC/53036-T1; ON: DE84008966
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fluidization characteristics of coal gasification materials. [41 refs]
Computational Fluid Dynamics Simulation of Fluidized Bed Polymerization Reactors
Related Subjects
FLUIDIZATION
FLUID MECHANICS
PRESSURE DEPENDENCE
REVIEWS
VELOCITY
BIBLIOGRAPHIES
BUBBLES
CHARS
COAL
CORRELATIONS
FLUIDIZED BED
MATHEMATICAL MODELS
MEDIUM PRESSURE
PARTICLE SIZE
PARTICLES
PRESSURE EFFECTS
TEST FACILITIES
CARBONACEOUS MATERIALS
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
MECHANICS
PYROLYSIS PRODUCTS
SIZE
014000* - Coal
Lignite
& Peat- Combustion
010404 - Coal
Lignite
& Peat- Gasification