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Pneumatic conveying of wood powder by using a steam-jet ejector
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
2000 (English)In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 19, no 2, p. 103-117Article in journal (Refereed) Published
Abstract [en]

Wood powder and sawdust are two fuels which will be tested in a pressurized cyclone-gasifier. The gasifier will be a part of combined cycle power plant where a gas turbine is run by the product gases from the gasifier and a steam boiler will use the exhaust gas from the turbine. To inject the fuel into the cyclone, a steam-jet ejector seems to be appropriate due to its simplicity and the possibility of using the steam produced by the boiler for feeding of the fuel. Three types of wood powder with different particle-size distribution have been tested in different ejector geometries. The results show that the steam-jet ejector is suitable as a feeding pump for wood powder and sawdust. For commercial wood powder fuel with particle size below 1 mm, a powder to steam mass flow ratio of about 25 and with coarser sawdust a mass flow ratio of at least 10 can be reached. The pressure gain required to overcome the pressure drop in the cyclone gasifier can be achieved. The relative pressure gain seems to be independent of the size distribution of the particles.

Place, publisher, year, edition, pages
2000. Vol. 19, no 2, p. 103-117
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-5936DOI: 10.1016/S0961-9534(00)00024-6ISI: 000089330300002Scopus ID: 2-s2.0-0033831344Local ID: 41ff1560-b2e6-11db-bf9d-000ea68e967bOAI: oai:DiVA.org:ltu-5936DiVA, id: diva2:978812
Note
Validerad; 2000; 20070202 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Kjellström, Björn

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Citation style
  • apa
  • harvard1
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  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
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  • asciidoc
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