Multiphysics modelling of convective drying of food materials
Data(s) |
28/12/2012
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Resumo |
Currently, 1.3 billion tonnes of food is lost annually due to lack of proper processing and preservation method. Drying is one of the easiest and oldest methods of food processing which can contribute to reduce that huge losses, combat hunger and promote food security. Drying increase shelf life, reduce weight and volume of food thus minimize packing, storage, and transportation cost and enable storage of food under ambient environment. However, drying is a complex process which involves combination of heat and mass transfer and physical property change and shrinkage of the food material. Modelling of this process is essential to optimize the drying kinetics and improve energy efficiency of the process. Since material properties varies with moisture content, the models should not consider constant materials properties, constant diffusion .The objective of this paper is to develop a multiphysics based mathematical model to simulate coupled heat and mass transfer during convective drying of fruit considering variable material properties. This model can be used predict the temperature and moisture distribution inside the food during drying. Effect of different drying air temperature and drying air velocity on drying kinetics has been demonstrated. The governing equations of heat and mass transfer were solved with Comsol Multiphysics 4.3. |
Formato |
application/pdf |
Identificador | |
Publicador |
Global Institute of Science and Technology |
Relação |
http://eprints.qut.edu.au/56082/2/409-Chandan_update.pdf http://www.gistconpro.com/409-Chandan_update.pdf Kumar, Chandan, Karim, Azharul, Saha, Suvash C., Joardder, Mohammad Uzzal Hossain, Brown, Richard J., & Biswas, Dipankar (2012) Multiphysics modelling of convective drying of food materials. In Proceedings of the Global Engineering, Science and Technology Conference, Global Institute of Science and Technology, Dhaka, Bangladesh. |
Direitos |
Copyright 2012 please consult the authors |
Fonte |
School of Chemistry, Physics & Mechanical Engineering; Faculty of Science and Technology |
Palavras-Chave | #090407 Process Control and Simulation #090802 Food Engineering #090805 Food Processing #091307 Numerical Modelling and Mechanical Characterisation #Drying #Modelling #Multyphysics #Heat and mass transfer #comsol |
Tipo |
Conference Paper |