Effective condensing dehumidification in a rotary-spray honey dehydrator
Authors:
- Marcin Morawski,
- Marcin Malec,
- Beata Niezgoda-Żelasko
Abstract
This paper presents a mathematical model of the heat and mass transfer processes for a rotary‐spray honey dehydrator with a heat pump and a closed air circuit. An analytical calculation model, based on the energy balance equations of the dehydrator and heat pump, was used to model the transient dehydration process of honey in a dehydrator. The presented article includes a different approach to modelling both the dryer and the heat pump assisting the drying process. The novel quality of this study lies in the use of original equations to determine the heat and mass transfer coefficients between honey and air and using an actual model of a cooling unit to model the honey dehydration process. The experimentally verified calculation algorithm enables an analysis of the effects of air flow rate, mixer rotation speed, and cooling unit power on the efficiency of the drying process. The dehydrator calculation model was used to minimize the drying time by selecting the optimal evaporative temperature values of the cooling unit. For fixed mixer speed and air flow rates, optimal values of evaporation temperatures allow for 8–13% reduction in honey drying time and an increase in the specific moisture extraction rate (SMER) by 4–32%.
- Record ID
- CUTa3826ba453574c75b8b5e1003eb44c97
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 1
- Pages
- [1-17]
- Article number
- 100
- Other elements of collation
- schem.; tab.; wykr.; Bibliografia (na s.) - 16-17; Bibliografia (liczba pozycji) - 39; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2021-12-23; Numeracja w czasopiśmie - Vol. 15, Iss. 1, Spec. Iss.
- Substantive notes
- Special Issue: Numerical Simulation of Convective Heat Transfer
- Keywords in English
- rotary-spray honey dehydrator, modelling heat and mass transfer, optimal operating parameters
- ASJC Classification
- DOI
- DOI:10.3390/en15010100 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/15/1/100 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTa3826ba453574c75b8b5e1003eb44c97/
- URN
urn:pkr-prod:CUTa3826ba453574c75b8b5e1003eb44c97
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.