Experimental evidence for evaporation/condensation nonuniform flow in a horizontal aerosol generator
(2005) In Aerosol Science and Technology 39(5). p.444-451- Abstract
- The formation of deposition patterns in the cooling zone during operation of a horizontal evaporation/condensation nanoparticle generator was studied to obtain information about flow conditions during particle formation. Quartz reactor tubes were used together with a simple light attenuation measurement to characterize deposition as a function of axial location. Results for the onset and pattern of deposition for four different metals-indium, gallium, silver, and lead-were obtained, and size distributions for indium and gallium particle nanoparticles at different temperatures were measured. Distinct deposition bands could be observed resulting from vapor deposition, nanioparticle deposition, or a combination of both. The location or the... (More)
- The formation of deposition patterns in the cooling zone during operation of a horizontal evaporation/condensation nanoparticle generator was studied to obtain information about flow conditions during particle formation. Quartz reactor tubes were used together with a simple light attenuation measurement to characterize deposition as a function of axial location. Results for the onset and pattern of deposition for four different metals-indium, gallium, silver, and lead-were obtained, and size distributions for indium and gallium particle nanoparticles at different temperatures were measured. Distinct deposition bands could be observed resulting from vapor deposition, nanioparticle deposition, or a combination of both. The location or the bands varied with metal and evaporation temperature. Experimentally observed fluctuations in temperature, bimodal size distributions obtained at the highest furnace temperatures, as well as asymmetric deposition patterns suggested the How in the cooling portion of the generator is nonuniform, possibly as a result of buoyancy. These results are important for the design of nanoparticle generation systems, in that horizontal evaporation/condensation generators are often chosen on the basis of assumed simplicity with respect to flow, and this may not always be the case. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/238863
- author
- Damour, T M ; Ehrman, S H ; Karlsson, Martin LU ; Karlsson, Lisa LU and Deppert, Knut LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Aerosol Science and Technology
- volume
- 39
- issue
- 5
- pages
- 444 - 451
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000229583300009
- scopus:20044394563
- ISSN
- 1521-7388
- DOI
- 10.1080/027868290959834
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Solid State Physics (011013006), Polymer and Materials Chemistry (LTH) (011001041)
- id
- db8f7379-7c47-478d-ac0c-c9230661c37d (old id 238863)
- date added to LUP
- 2016-04-01 11:45:12
- date last changed
- 2022-01-26 17:45:29
@article{db8f7379-7c47-478d-ac0c-c9230661c37d, abstract = {{The formation of deposition patterns in the cooling zone during operation of a horizontal evaporation/condensation nanoparticle generator was studied to obtain information about flow conditions during particle formation. Quartz reactor tubes were used together with a simple light attenuation measurement to characterize deposition as a function of axial location. Results for the onset and pattern of deposition for four different metals-indium, gallium, silver, and lead-were obtained, and size distributions for indium and gallium particle nanoparticles at different temperatures were measured. Distinct deposition bands could be observed resulting from vapor deposition, nanioparticle deposition, or a combination of both. The location or the bands varied with metal and evaporation temperature. Experimentally observed fluctuations in temperature, bimodal size distributions obtained at the highest furnace temperatures, as well as asymmetric deposition patterns suggested the How in the cooling portion of the generator is nonuniform, possibly as a result of buoyancy. These results are important for the design of nanoparticle generation systems, in that horizontal evaporation/condensation generators are often chosen on the basis of assumed simplicity with respect to flow, and this may not always be the case.}}, author = {{Damour, T M and Ehrman, S H and Karlsson, Martin and Karlsson, Lisa and Deppert, Knut}}, issn = {{1521-7388}}, language = {{eng}}, number = {{5}}, pages = {{444--451}}, publisher = {{Taylor & Francis}}, series = {{Aerosol Science and Technology}}, title = {{Experimental evidence for evaporation/condensation nonuniform flow in a horizontal aerosol generator}}, url = {{http://dx.doi.org/10.1080/027868290959834}}, doi = {{10.1080/027868290959834}}, volume = {{39}}, year = {{2005}}, }