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A novel particle tr...
A novel particle trap impactor for use with the gas-quenching probe sampling system
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- Tran, K. Q. (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Hagström, Magnus, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Korsgren, John G. (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Steenari, Britt-Marie, 1953 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lindqvist, Oliver, 1943 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Pettersson, Jan B. C., 1962 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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(creator_code:org_t)
- Informa UK Limited, 2004
- 2004
- English.
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In: Aerosol Science and Technology. - : Informa UK Limited. - 0278-6826 .- 1521-7388. ; 38:10, s. 955-962
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Abstract
Subject headings
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- A novel particle trap impactor has been developed for use with the gas-quenching probe in order to exclude solid particles from entering into the probe during sampling of gaseous metallic species in fluidized bed combustion conditions. The impactor must be small in size (empty set(impactor)less than or equal toempty set(probe) = 45 mm) but capable of collecting a relatively large amount of particles at elevated temperatures. As the first step, the impactor was designed, constructed, and tested at room temperature for KCl aerosol particles. The impactor with a nozzle of 0.95 mm in diameter, in combination with the orifice-to-jet diameter ratio of 1.5 and the ratio of the jet-to-plate spacing to jet diameter at 1.4 yielded a sharp cutoff curve with a maximum collection efficiency of about 0.9 and a rootStk(50) value of about 0.22. In addition, the collection efficiency of the impactor was compared with the particle removal efficiency of a filter of the same type as the filter previously used with the gas-quenching probe. The difference from the comparison is very small, indicating that the impactor can be used to replace the filter to prevent fly ash particles from entering the gas-quenching probe in fluidized bed combustion conditions.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- FLUIDIZED-BED BOILER
- SIZE DISTRIBUTIONS
- COMBUSTION-CHAMBER
- VIRTUAL
- IMPACTOR
- HIGH-TEMPERATURE
- HIGH-PRESSURE
- AEROSOLS
- CONDENSATION
- PERFORMANCE
- AMMONIA
- HIGH-PRESSURE
Publication and Content Type
- ref (subject category)
- art (subject category)
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