Thermal drying technologies: new developments and future r&d potential
read more
Citations
CFD analysis of a tube-in-tube heat exchanger to recover waste heat for food drying
Air dehumidification with advance adsorptive materials for food drying: A critical assessment for future prospective
Thermal Drying of Foods
Computational Modeling of Drying Processes of Food Materials
Effect of Particle Size Distribution on Ammonium Sulphate Dried in a Rotary Dryer
References
Handbook of Industrial Drying
Homogenization and Porous Media
Modelling shrinkage during convective drying of food materials: a review
Advanced drying technologies
Total porosity and open-pore porosity in the drying of fruits
Related Papers (5)
Computational modelling of the transport phenomena occurring during convective drying of prunes
An Overview of Recent Developments and Some R&D Challenges Related to Drying of Foods
Frequently Asked Questions (15)
Q2. What are the main reasons for the growth of dryers?
More efficient combustion technologies which also provide thrust for gas movement in dryer, e.g. pulse combustion, will become more common.
Q3. What is the effect of low rank coal on the environment?
Use of low rank coal which contains large volume of water (similar to peat) will increase along with the need to dewater and dry coal costeffectively possibly using superheated steam.
Q4. What is the role of the carbon tax in the development of drying systems?
With potential legislations limiting carbon emissions and imposition of carbon tax, it will be essential in the next few decades to come up with ultraefficient, compact drying systems to remain globally competitive.
Q5. What is the thermo-mechanical model for drying?
The thermo-mechanical models often comprise of simplified drying models based on the diffusion equation with different coefficients and boundary conditions for the first and second periods of drying.
Q6. What is the CFD model for a cylindrical spouted bed dryer?
The CFD model was also used to evaluate the influence of operation parameters such as particle size, density, and pulsating jet, etc on flow pattern of the bed.
Q7. Why did the energy crisis drive drying R&D?
As energy costs dropped and levelled off drying R&Dcontinued but driven by need to reduce costs, improve quality and meet global competition.
Q8. What are the advantages of solar dryers?
Solar dryers utilizing photovoltaics and possibly wind energy to boost the drying rates and efficiency will become more popular even in developed countries.
Q9. What are the main challenges of drying?
Even in conventional areas like drying of paper, ceramics, wood etc there is scope to make the processes more energy-efficient, environmentally friendly and safe.
Q10. What is the potential of the multiscale model in drying?
the multiscale model shows high application potential in drying, especially of porous materials such as wood, ceramics, etc.
Q11. What are the advantages of superheated steam?
In the coming decade one should see more industrial technologies utilizing superheated steam as the drying medium because of its numerous inherent advantages.
Q12. What is the use of the CFD model in the dryer?
the CFD model was used toevaluate an innovative one-stage and two-stage, two dimensional horizontal spray dryer (HSD) concept.
Q13. What are the main problems of drying?
Compared to what the authors find in the literatures on porous media, the corresponding drying problem is complicated by the fact that the porous material can undergo physical deformation and even chemical reactions, change of moisture transport mechanisms during drying, can involve glass transitions, precipitation of solids, micro-crystallization etc.
Q14. What are the different scales that can be considered as independent?
If the scale levels can not be considered as independent, other strategies have been proposed through which several scales can be considered simultaneously, such as the parallel flow model, mesocopic model [24], distributed microstructure models [25], etc.
Q15. What is the thermo-mechanical model used to estimate shrinkage, capillary forces and thermal?
In summary, the thermo-mechanical model can be used to estimate shrinkage, capillary forces and thermal tensions cause stresses in drying bodies.