Thermal Bed Mixing in Rotary Drums for Different Operational Parameters

The transversal thermal bed mixing was experimentally investigated in a batch rotary drum with a diameter of 0.6 m and a length of 0.45 m. The drum was filled with two fractions of granular material with different thermal conditions and the mixing temperature in the solid bed was measured with therm...

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Main Authors: Aainaa Izyan, Nafsun, Herz, F., Specht, E., Komossa, H., Wirtz, S., Scherer, V., Liu, X.
Format: Article
Language:English
Published: Elsevier Ltd 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/16428/
http://umpir.ump.edu.my/id/eprint/16428/1/Thermal%20bed%20mixing%20in%20rotary%20drums.pdf
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author Aainaa Izyan, Nafsun
Herz, F.
Specht, E.
Komossa, H.
Wirtz, S.
Scherer, V.
Liu, X.
author_facet Aainaa Izyan, Nafsun
Herz, F.
Specht, E.
Komossa, H.
Wirtz, S.
Scherer, V.
Liu, X.
author_sort Aainaa Izyan, Nafsun
building UMP Institutional Repository
collection Online Access
description The transversal thermal bed mixing was experimentally investigated in a batch rotary drum with a diameter of 0.6 m and a length of 0.45 m. The drum was filled with two fractions of granular material with different thermal conditions and the mixing temperature in the solid bed was measured with thermocouples located at different bed height. Quartz sand with a mean particle diameter of dP=0.2 mm was used as test material. The operating parameters, rotational speed and filling degree of the drum were varied in the range of n=1–6 rpm and F=10–20% respectively, whereas the influence on thermal mixing time was evaluated. The thermal mixing behavior was shown in terms of time constant, number of bed rotation, peak time and mixing number. Thermal mixing time decreases with higher rotational speed and lower filling degree. Comparison between experimental data and penetration model shows good agreement for low rotational speeds.
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institution Universiti Malaysia Pahang
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language English
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publishDate 2017
publisher Elsevier Ltd
recordtype eprints
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spelling ump-164282019-07-17T07:46:23Z http://umpir.ump.edu.my/id/eprint/16428/ Thermal Bed Mixing in Rotary Drums for Different Operational Parameters Aainaa Izyan, Nafsun Herz, F. Specht, E. Komossa, H. Wirtz, S. Scherer, V. Liu, X. TP Chemical technology The transversal thermal bed mixing was experimentally investigated in a batch rotary drum with a diameter of 0.6 m and a length of 0.45 m. The drum was filled with two fractions of granular material with different thermal conditions and the mixing temperature in the solid bed was measured with thermocouples located at different bed height. Quartz sand with a mean particle diameter of dP=0.2 mm was used as test material. The operating parameters, rotational speed and filling degree of the drum were varied in the range of n=1–6 rpm and F=10–20% respectively, whereas the influence on thermal mixing time was evaluated. The thermal mixing behavior was shown in terms of time constant, number of bed rotation, peak time and mixing number. Thermal mixing time decreases with higher rotational speed and lower filling degree. Comparison between experimental data and penetration model shows good agreement for low rotational speeds. Elsevier Ltd 2017 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/16428/1/Thermal%20bed%20mixing%20in%20rotary%20drums.pdf Aainaa Izyan, Nafsun and Herz, F. and Specht, E. and Komossa, H. and Wirtz, S. and Scherer, V. and Liu, X. (2017) Thermal Bed Mixing in Rotary Drums for Different Operational Parameters. Chemical Engineering Science, 160. pp. 346-353. ISSN 0009-2509. (Published) http://doi.org/10.1016/j.ces.2016.11.005 DOI: 10.1016/j.ces.2016.11.005
spellingShingle TP Chemical technology
Aainaa Izyan, Nafsun
Herz, F.
Specht, E.
Komossa, H.
Wirtz, S.
Scherer, V.
Liu, X.
Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title_full Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title_fullStr Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title_full_unstemmed Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title_short Thermal Bed Mixing in Rotary Drums for Different Operational Parameters
title_sort thermal bed mixing in rotary drums for different operational parameters
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/16428/
http://umpir.ump.edu.my/id/eprint/16428/
http://umpir.ump.edu.my/id/eprint/16428/
http://umpir.ump.edu.my/id/eprint/16428/1/Thermal%20bed%20mixing%20in%20rotary%20drums.pdf