Development of guidelines for optimum baghouse fluid-dynamic-system design. Final report

Technical Report · Tue Jun 01 04:00:00 EDT 1982

OSTI ID:5343159

Eskinazi, D; Gilbert, G B

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
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
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& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
BAGHOUSES
CONTROL
DATA
DESIGN
DUCTS
EQUIPMENT
EXPERIMENTAL DATA
FABRIC FILTERS
FILTERS
FLOW MODELS
FLUE GAS
FLUID MECHANICS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
INFORMATION
MATHEMATICAL MODELS
MECHANICS
NUMERICAL DATA
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
PRESSURE DROP
RECOMMENDATIONS
THERMAL POWER PLANTS
WASTES