Luqman, Abdul Halim and Firdaus, Basrawi and Ahmmad Shukrie, Md Yudin and Siti Norazualina, Faizal (2020) Fluidized bed drying of stingless bee pot-pollen: performance of swirling distributor. In: Symposium on Energy Systems (SES 2019) , 1-2 October 2019 , Kuantan, Malaysia. pp. 1-6., 863. ISSN 1757-8981 (Print); 1757-899X (Online)
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Abstract
Pot-pollen is pollen collected by stingless bees, that is mixed with honey and bee secretion, and then stored in cerumen pots. Raw pot-pollen contains high moisture content which can lead to excessive fermentation and spoilage. Drying of pot-pollen is needed to preserve them. Typically, elevated temperature can increase the drying performance. However, as pot-pollen is heat sensitive, heating above 40 °C is not preferable. Hence, the objective of this study is to investigate the drying performance of fluidized bed dryer with swirling distributor. The experiment was conducted using three different distributors, a perforated distributor, 45° and 67° swirling distributor, at 1.0 m/s and 1.5 m/s superficial air velocities. Drying experiment was conducted at ambient conditions, with no heating being applied to the pot-pollen samples. It was found that 67° swirling distributor at 1.5 m/s superficial air velocity had the highest improvement in terms of drying performance, able to reduce the moisture content from 30.5 % to 18 % within 30 minutes drying time. Hence, using swirling distributor is a suitable enhancement to fluidized bed drying especially for heat sensitive food materials.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Uncontrolled Keywords: | Fluidized bed drying; Stingless bees; Pot-pollen; Performance of swirling distributor |
| Subjects: | T Technology > T Technology (General) |
| Faculty/Division: | Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Miss. Ratna Wilis Haryati Mustapa |
| Date Deposited: | 26 Jun 2020 03:36 |
| Last Modified: | 26 Jun 2020 03:36 |
| URI: | http://umpir.ump.edu.my/id/eprint/27075 |
| Download Statistic: | View Download Statistics |
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