6. Regulation and control of hot-air drying
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Objectives
The main aim of dryer control is to ensure a constant water content X P2 = Cte in the final product, in response to fluctuations in certain time-varying drying parameters, such as: the water content of the product X P1 on entry (particularly for products of biological origin, with a "natural" variability of water content, or of DM concentration), the flow rate of the product more or less disturbed by the upstream process, the characteristic dimension L of the product and/or its composition (purity..), the temperature and humidity of the air A...
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Unit operations. Chemical reaction engineering
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Regulation and control of hot-air drying
Conclusion
Bibliography
Reviews
Journals dealing with the drying unit operation, independently of the product:
Chemical Engineering Science ;
Chemical Engineering Processing ;
Drying Technology Journal ;
International Journal of Thermal Science ;
Journal of Heat and Mass Transfer...
Software tools
Collection of psychrometry software http://www.linric.com
Online psychrometric calculation http://www.psychro.com
Commercial "Dryer 3 000" software [Windows, MacOSX or Unix/Linux], for calculating cereal tower dryers, by simulation using...
Events
IDS Congress: International Drying Symposium (number of the year)
International congress dedicated to drying. It takes place every two years, in a different host country. The proceedings of each congress are available for consultation.
Directory
AFSIA: French Association for Drying in Industry and Agriculture
It brings together applied drying research centers, researchers and manufacturers in France. Its headquarters can change (in 2008, INSA Lyon). It organizes or participates in conferences, and produces its own publications (AFSIA publications).
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