Temperature Field Simulation and Energy Analysis of a Heat Pump Tobacco Bulk Curing Barn

Recently, heat pump drying has been widely used in tobacco processing. Considering the importance of this issue, it is of significant importance to further investigate temperature distribution and energy analysis in the drying process. To develop an energy-saving, environmental-friendly, and high-qu...

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Bibliographic Details
Published in:Energies (Basel) 2022-11, Vol.15 (22), p.8655
Main Authors: Zhang, Ye, Li, Bin, He, Zhenfeng, Ou, Wenyan, Zhong, Jiahao, Zhang, Xuefeng, Meng, Mingang, Li, Changyou
Format: Article
Language:English
Subjects:
Air flow
China
Coal
Comparative analysis
Curing
Dehumidification
Drying
Eigenvalues
Energy
Energy conservation
Energy consumption
Energy efficiency
Experiments
Heat
Heat exchangers
heat pump
Heat pumps
Humidity
moisture dehumidification rate
Sensors
Temperature
Temperature distribution
temperature field
thermal efficiency
Thermodynamic efficiency
Tobacco
tobacco bulk curing
Ventilation
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Summary:Recently, heat pump drying has been widely used in tobacco processing. Considering the importance of this issue, it is of significant importance to further investigate temperature distribution and energy analysis in the drying process. To develop an energy-saving, environmental-friendly, and high-quality tobacco drying method, temperature distribution, dehumidification performance, the economic issues, and thermal efficiency of a heat pump curing barn (HPCB) and a traditional coal-fired bulk curing barn (TCCB) were compared. The regional temperature eigenvalue model was applied to describe the temperature uniformity with HPCB and TCCB. Moreover, thermal efficiency was obtained through energy tests. The obtained results showed that HPCB is beneficial to improve the drying quality of tobacco. The performed analyses showed that the thermal efficiency of the TCCB and HPCB was 42.02% and 66.53%, respectively. Accordingly, heat pump technology is recommended for industrial drying of tobacco leaves and obtaining high-quality products.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15228655