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Size, shape, and de...
Size, shape, and density changes of biomass particles during rapid devolatilization
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- Holmgren, Per (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Umeå University, Sweden,Umeå University, Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory
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- Wagner, David R. (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Umeå University, Sweden,Umeå University, Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory
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- Strandberg, Anna (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Umeå University, Sweden,Umeå University, Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory
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- Molinder, Roger (författare)
- RISE,ETC Energy Technology Center,RISE Energy Technology Center
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- Wiinikka, Henrik (författare)
- RISE,ETC Energy Technology Center,RISE Energy Technology Center
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- Umeki, Kentaro (författare)
- Luleå tekniska universitet,Energivetenskap
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- Broström, Markus (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Thermochemical Energy Conversion Laboratory (TEC-Lab), Department of Applied Physics and Electronics, Umeå University,Umeå University, Sweden
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(creator_code:org_t)
- Elsevier BV, 2017
- 2017
- Engelska.
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Ingår i: Fuel. - : Elsevier BV. - 0016-2361 .- 1873-7153. ; 206, s. 342-351
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Particle properties such as size, shape and density play significant roles on particle flow and flame propagationin pulverized fuel combustion and gasification. A drop tube furnace allows for experiments athigh heating rates similar to those found in large-scale appliances, and was used in this study to carryout experiments on pulverized biomass devolatilization, i.e. detailing the first stage of fuel conversion.The objective of this study was to develop a particle conversion model based on optical informationon particle size and shape transformation. Pine stem wood and wheat straw were milled and sieved tothree narrow size ranges, rapidly heated in a drop tube setup, and solid residues were characterized usingoptical methods. Different shape descriptors were evaluated and a shape descriptor based on particleperimeter was found to give significant information for accurate estimation of particle volume. The opticalconversion model developed was proven useful and showed good agreement with conversion measuredusing a reference method based on chemical analysis of non-volatilized ash forming elements.The particle conversion model presented can be implemented as a non-intrusive method for in-situ monitoringof particle conversion, provided density data has been calibrated.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- PIV
- DTR
- Pyrolysis
- Biomass conversion
- Energiteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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