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- Convective Cooling of purple-speckled Cocoyam (Colocasia Esculenta (L.) Schott): Influence of Air Velocity, Corm Size and Orientation on Cooling Behaviour
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Convective Cooling of purple-speckled Cocoyam (Colocasia Esculenta (L.) Schott): Influence of Air Velocity, Corm Size and Orientation on Cooling Behaviour
Authors: John Ndisya, Gitau Ayub, Roman Franz, Mbuge Duncan, Kulig Boris, Sturm Barbara, Hensel Oliver
Identifier: CSBE21341
Download file: https://library.csbe-scgab.ca/docs/meetings/2021/CSBE21341.pdf
Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions
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Description: Convective cooling has been successfully applied to provide the ideal storage conditions for various agricultural products. However, the preservation of purple-speckled Cocoyam by cooling is not adequately understood. In this study, forced convection cooling of whole purple-speckled Cocoyam corms under two levels of air velocity (0.5, 0.9 m's-1), corm size (small, large) and corm orientation to airflow (across, along) was investigated. The time to attain a temperature of 12 ? 0.2 ?C at the core of the corms and the energy consumed in the process were investigated and found to be significantly dependent on the cooling settings. The kinetics of the cooling process were adequately modelled by the Two-term model. For both levels of corm size, numerical optimisation results using the desirability function approach found that the air velocity of 0.5 m's-1 and the across orientation to the cooling airstream resulted in optimal cooling time and specific energy consumption. The composite desirability indices attained at the optimal cooling settings were 0.85 for small-sized corms and 0.52 for large-sized corms.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 2
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Type: Text.Abstract
Format:
Publication type: Presentation
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Relation:
Coverage: Kenya
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
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DOI:
Description: Convective cooling has been successfully applied to provide the ideal storage conditions for various agricultural products. However, the preservation of purple-speckled Cocoyam by cooling is not adequately understood. In this study, forced convection cooling of whole purple-speckled Cocoyam corms under two levels of air velocity (0.5, 0.9 m's-1), corm size (small, large) and corm orientation to airflow (across, along) was investigated. The time to attain a temperature of 12 ? 0.2 ?C at the core of the corms and the energy consumed in the process were investigated and found to be significantly dependent on the cooling settings. The kinetics of the cooling process were adequately modelled by the Two-term model. For both levels of corm size, numerical optimisation results using the desirability function approach found that the air velocity of 0.5 m's-1 and the across orientation to the cooling airstream resulted in optimal cooling time and specific energy consumption. The composite desirability indices attained at the optimal cooling settings were 0.85 for small-sized corms and 0.52 for large-sized corms.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 2
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Kenya
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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