Simplified procedure for approximating electrostatic precipitator size/collection efficiency relationship for coal-fired boilers

Journal Article · Fri Nov 01 04:00:00 EST 1985 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1985.10466022· OSTI ID:5915090

Hesketh, H E

Electrostatic precipitators (ESPs) achieve high particle control efficiencies due to the electrostatic charging and attraction of the fly ash particles. Several procedures have been developed to predict ESP efficiencies, but the most accurate of these are based on empirical measurements from operating data. Using the available information and data from ESP efficiency including data from personal communications, an improved and simplified efficiency relationship is developed for coal-fired systems. The data can be expressed for coal combustion systems as the empirical equation SCA = 433S/sup -0/ /sup 59/(100 - E)/sup -0/ /sup 24/, where SCA is the specific collecting area in ft/1000 acfm gas flow, S is the as-received coal percent sulfur and E is the percent particulate collection efficiency. The relationship requires that the ESP and the entire system be properly designed, operated and maintained. ESP efficiency can also be profoundly affected by gas temperature, by sodium and other alkali substances present in the coal burned, and by moisture content of the gases. 10 references, 1 figure.

• Research Organization: Southern Illinois Univ., Carbondale
• OSTI ID: 5915090
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 35:11; ISSN JPCAA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION ABATEMENT
ALKALI METALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
EFFICIENCY
ELECTROSTATIC PRECIPITATORS
ELEMENTS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
MATERIALS
MATHEMATICAL MODELS
METALS
MOISTURE
OXIDATION
PARTICLES
PARTICULATES
POLLUTION
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
RESPONSE MODIFYING FACTORS
SODIUM
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES