Development of guidelines for optimum baghouse fluid-dynamic-system design. Final report
In recent years, the utility industry has turned to fabric filters as an alternative technology to electrostatic precipitators for particulate emission control from pulverized coal-fired power plants. One aspect of baghouse technology which appears to be of major importance in minimizing the size, cost, and operating pressure drop is the development of ductwork and compartment designs which achieve uniform gas and dust flow distribution to individual compartments and bags within a compartment. The objective of this project was to perform an experimental modeling program to develop design guidelines for optimizing the fluid mechanic performance of baghouses. Tasks included formulation of the appropriate modeling techniques for analysis of the flow of dust-laden gas through the collector system and extensive experimental analysis of fabric filter duct system design. A matrix of geometric configurations and operating conditions was experimentally investigated to establish the characteristics of an optimum system, to identify the level of fluid mechanic sophistication in current designs, and to experimentally develop new ideas and improved designs. Experimental results indicate that the design of the inlet and outlet manifolds, hopper entrance, hopper region below the tubesheet, and the compartment outlet have not been given sufficient attention. Unsteady flow patterns, poor velocity profiles, recirculation zones, and excessive pressure losses may be associated with these regions. It is evident from the results presented here that the fluid mechanic design of fabric filter systems can be improved significantly.
- Research Organization:
- Dynatech R/D Co., Cambridge, MA (USA)
- OSTI ID:
- 5343159
- Report Number(s):
- EPRI-CS-2427; ON: DE82905788
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
BAGHOUSES
DESIGN
FLUID MECHANICS
PRESSURE DROP
DUCTS
FOSSIL-FUEL POWER PLANTS
AIR POLLUTION CONTROL
EXPERIMENTAL DATA
FABRIC FILTERS
FLOW MODELS
FLUE GAS
MATHEMATICAL MODELS
RECOMMENDATIONS
CONTROL
DATA
EQUIPMENT
FILTERS
GASEOUS WASTES
INFORMATION
MECHANICS
NUMERICAL DATA
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management