| Drying Kinetics and Energy Consumption in Vacuum Drying Process with Microwave and Radiant Heating |
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| 作者姓名： | M.Kamel J.I.Lombrana C.de Elvira R.Rodríguez |
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| 作者单位： | Department of Chemical Engineering Facultad de Ciencias，Universidad del Pais Vasco. Apdo. 644，48080 Bilbao，Spain，Department of Chemical Engineering Facultad de Ciencias，Universidad del Pais Vasco. Apdo. 644，48080 Bilbao，Spain，Instituto del Frio (CSIC) Ciudad Universitaria. 28040 Madrid Spain，Department of Chemical Engineering Facultad de Ciencias，Universidad del Pais Vasco. Apdo. 644，48080 Bilbao，Spain |
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| 摘 要： | The general objective of this work is to analyze energy input in a vacuum process with the incorporation of microwave heating. Thus, necessary criteria for designing an efficient freeze-drying operation are considered through the analysis of strategies based on the combination of different intensities of radiant and microwave heating. The other aim of this research topic is to study the kinetics of drying in relation to mass transfer parameters. Five freeze-drying strategies using both heating systems were used. Consequently, energy input could be related to diffusivity coefficients, temperature and pressure profiles during dehydration of the product and analyzed in comparison to a conventional freeze-drying process.
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Drying Kinetics and Energy Consumption in Vacuum Drying Process with Microwave and Radiant Heating |
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| M. Kamel,J.I. Lombrana,C. de Elvira and R. Rodriguez.Drying Kinetics and Energy Consumption in Vacuum Drying Process with Microwave and Radiant Heating[J].Chinese Journal of Chemical Engineering,2004(6). |
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| Authors: | M Kamel JI Lombrana C de Elvira and R Rodriguez |
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| Abstract: | The general objective of this work is to analyze energy input in a vacuum process with the incorporation of microwave heating. Thus, necessary criteria for designing an efficient freeze-drying operation are considered through the analysis of strategies based on the combination of different intensities of radiant and microwave heating. The other aim of this research topic is to study the kinetics of drying in relation to mass transfer parameters. Five freeze-drying strategies using both heating systems were used. Consequently, energy input could be related to diffusivity coefficients, temperature and pressure profiles during dehydration of the product and analyzed in comparison to a conventional freeze-drying process. |
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| Keywords: | vacuum microwave drying diffusivity constant energy |
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