LAPSE:2023.2860
Published Article
LAPSE:2023.2860
Drying Characteristics of a Combined Drying System of Low-Pressure Superheated Steam and Heat Pump
February 21, 2023
Abstract
The present study aimed at investigating the use of a drying system combining the concept of low-pressure superheated steam drying and heat pump drying for fish. The effects of various drying medium pressures on the temperature field, airflow field, drying time, equipment performance as well as the power consumption of the drying process were investigated and discussed. Four comparative tests with different initial pressures were carried out according to a specified drying process by the combined drying system. The results showed that when the vacuum was high, the temperature field and airflow field in the drying chamber were more uniform. Due to the poor heat transfer performance of the drying medium at high vacuum, the drying time increased with a decrease in initial pressure. It was also found that with the decrease in drying medium pressure, the power consumption of the heat pump and the axial fans was reduced, while the power consumption of the electric heater went up. Overall, the total power consumption is directly proportional to the drying medium pressure.
The present study aimed at investigating the use of a drying system combining the concept of low-pressure superheated steam drying and heat pump drying for fish. The effects of various drying medium pressures on the temperature field, airflow field, drying time, equipment performance as well as the power consumption of the drying process were investigated and discussed. Four comparative tests with different initial pressures were carried out according to a specified drying process by the combined drying system. The results showed that when the vacuum was high, the temperature field and airflow field in the drying chamber were more uniform. Due to the poor heat transfer performance of the drying medium at high vacuum, the drying time increased with a decrease in initial pressure. It was also found that with the decrease in drying medium pressure, the power consumption of the heat pump and the axial fans was reduced, while the power consumption of the electric heater went up. Overall, the total power consumption is directly proportional to the drying medium pressure.
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Keywords
combined drying, drying time, heat pump, heat transfer, low pressure, power consumption
Subject
Suggested Citation
Yao Y, Lu Z, Gong Y, Guo S, Xiao C, Hu W. Drying Characteristics of a Combined Drying System of Low-Pressure Superheated Steam and Heat Pump. (2023). LAPSE:2023.2860
Author Affiliations
Yao Y: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Resea
Lu Z: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Resea
Gong Y: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Resea
Guo S: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Xiao C: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Hu W: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Lu Z: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Resea
Gong Y: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Resea
Guo S: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Xiao C: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Hu W: State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Company Limited, Wuhan 430070, China; State Grid Electric Power Research Institute, Nanjing 211000, China
Journal Name
Processes
Volume
10
Issue
7
First Page
1402
Year
2022
Publication Date
2022-07-19
ISSN
2227-9717
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Original Submission
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PII: pr10071402, Publication Type: Journal Article
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LAPSE:2023.2860
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https://doi.org/10.3390/pr10071402
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Feb 21, 2023
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