ECTS credits ECTS credits: 3
ECTS Hours Rules/Memories Student's work ECTS: 51 Hours of tutorials: 3 Expository Class: 9 Interactive Classroom: 12 Total: 75
Use languages Spanish (100%)
Type: Ordinary subject Master’s Degree RD 1393/2007 - 822/2021
Departments: Chemistry Engineering
Areas: Chemical Engineering
Center Higher Technical Engineering School
Call: Second Semester
Teaching: With teaching
Enrolment: Enrollable | 1st year (Yes)
The course aims to train students in the basics of controlling mechanisms (mass and heat) of the transfer rate in an operation in which solids are present as is the drying. Equilibrium conditions (thermodynamic equilibrium) and drying kinetics (transfer rate) using rigorous and approximate models will be addressed. Enhancement of transfer processes is necessary to minimize energy costs in industrial processes in which the drying step plays an important role, but with a restrictive approach as is the quality of dried product. Different common drying (thermal and non thermal) methods in the industry and current trends will be studied. The course is focused to the practical use (practical exercises) of the concepts and methods that are employed to design of drying equipment using hot convective air.
a. Lectures.
Theme 1. Importance of drying operation in the chemical and food industries. Energy aspects. Moisture-solid interaction. Air-water interactions: humid air properties. Psychrometric and Mollier charts.
Theme 2. Drying statics. Water activity. Experimental measurement and prediction. Water sorption isotherms (desorption/adsorption). BET, GAB and empirical models. Applications.
Theme 3. Mass and heat transfers in drying processes. External and internal conditions. Moisture transport mechanisms: diffusion. Stationary and non-stationary systems. Experimental determination of effective diffusivities.
Theme 4. Introduction to the design of convective dryers. Differential balances of energy and mass. Continuous and batch dryers. Mathematical modeling. Application to dryers with dispersed solids: pneumatic dryers.
Theme 5. Other drying methods. Drying by radiation (IR), dielectric, freeze-drying and osmotic dehydration. Selection of drying equipment. Methods of energy efficiency.
b. Interactive lessons.
1. Seminars of exercises-solving.
2. Report of lab practices with format as scientific paper. Oral presentation.
c. Lab practices
1. Experimental drying kinetics determination of apple samples: effect of geometry and temperature. Data treatment. Determination of coefficients of diffusion.
Basic Bibliography
MUJUMDAR, A.S. Handbook of industrial drying. New York: Marcel Dekker. 1995. ISBN: 978-1-46659-665-8. (SIG: 132 29). (the e-book is requested)
Complementary Bibliography
BARBOSA-CANOVAS, G.V. VEGA MERCADO, H. Deshidratación de alimentos. Zaragoza: Acribia. 2000. ISBN: 978-8-42000-918-6. (ALT 368).
KUDRA, T., MUJUMDAR, A.S. Advances drying Technologies, Basilea: Marcel Dekker. 2002. ISBN: 0-8247-9618-7. (SIG: 164 11).
Basic and General skills: CB6, CB7. CB10, CG1, CG6, CG7, CG9
Specific skills: CE3, CE5, CE6
Transversal skills: CT1, CT4
The student to pass the course will be able to analyze systematically by applying property balances drying operations.
To know the existence of different drying technologies and selection based on operating conditions, production, etc.
Problem solving, basic part of the course, will require increasing the student capacity for abstraction.
The oral presentation of papers will allow the acquisition by the student of oral communication skills.
Teamwork.
The theoretical contents of the course are teaching based on lectures. In each, there will be follow-up questions of topics in the classroom for active participation of students. As support material will be employed blackboard and PowerPoint presentations. The slides will be delivered prior in paper to the student together with the course program and exercises sets. (CG1, CG9, CB6, CG1, CE5, CE6).
The seminars will be employed to solve exercises and case studies by both professor and students. (CB7, CG6, CG7, CT4, CE3, CE5).
A design of a convective dryer or description of drying equipment using advanced techniques employed in different industrial sectors will be conducted in groups of 3 students. This work will be presented in the latest calendar scheduled interactive classes for 20 minutes after the professor supervision during the tutorial hours. (CB10, CG1, CE5, CE6, CT1, CT4).
Lab practices will be conducted to determine experimental drying kinetics under different operating conditions of different products or experimental determination of water sorption isotherms under different higrothermal conditions. Data treatment employing the corresponding models will result in the evaluation of water effective diffusion coefficients in different experimental conditions. An operation handbook of dryer is disposal for the students. (CB6, CG6, CG7, CE3).
Assistance to Practices is compulsory.
Activity Timetable:
1st week (2 hours):
Course presentation.
Theme 1. Importance of drying operation in the chemical and food industries. Energy aspects. Moisture-solid interaction.
2nd week (6 hours):
Theme 1. Importance of drying operation in the chemical and food industries. Air-water interactions: humid air properties. Psychrometric and Mollier charts.
Theme 2. Drying statics. Water activity. Experimental measurement and prediction. Water sorption isotherms (desorption/adsorption). BET, GAB and empirical models. Applications
3rd week (4 hours + 6 hours of lab):
Theme 3. Mass and heat transfers in drying processes. External and internal conditions. Moisture transport mechanisms: diffusion. Stationary and non-stationary systems. Experimental determination of effective diffusivities.
Lab practices
4th week (4 hours):
Theme 4. Introduction to the design of convective dryers. Differential balances of energy and mass. Continuous and batch dryers. Mathematical modeling.
5th week (4 hours)
Theme 5. Other drying methods. Drying by radiation (IR), dielectric, freeze-drying and osmotic dehydration. Selection of drying equipment. Methods of energy efficiency.
Student learning will be monitored through activities, works or solving exercises individually and/or group. Students also conduct an exam with theoretical and practical issues and exercises solving that will identify the final mark.
Distribution of the mark (%)
Exam 50
Works/practices 35 (10/25%)
Tutorials 10
Professor report 5
To pass is necessary to achieve 5 points and 3/10 in each part of assessment, excepting Tutorial/Professor report marks.
For second opportunity the accumulative mark of continuous assessment will be maintained.
In additional calls, the student can keep the continuous evaluation marks and no repeat the lab practices in the case of mark high than 5.
The skills evaluation will be made as it is indicated by activity in the methodology chapter. So:
The exam, with theoretical and practical character, assesses the corresponding skills to lectures and interactive classes. CG1, CG6, CG7, CG9, CB6, CB7, CT4, CE3, CE5, CE6.
Teamwork (including tutorial) and oral presentation: CB10, CG1, CE5, CE6, CT1, CT4.
Lab practices: CB6, CG6, CG7, CE3.
This distribution of activities related to assessment will be maintained in the three scenarios.
In cases of fraudulent performance of exercises or exams, the provisions of the Regulations for the assessment of student academic performance and review of marks will be applied.
Classroom + homework hours:
Lectures: 12 + 12
Seminars: 8 + 10
Lab Practices: 6 + 7
Group tutorials: 1 + 4
Individual titurials: 1 + 4
Exam and revision: 2 + 8
Total: 30 + 45 = 75 h
Students of this course must have a basic knowledge of heat and mass transfers as well as on balances of property.
It is advisable that students have English proficiency to consult bibliography and also handling spreadsheets to solve design problems.
Finally, of course, it is recommend the use of tutorials for clarification of doubts and concepts.
The language is Spanish.
Virtual course will be employed.
Operation handbook of dryer are disposal for the students with topics related to safety and health in lab.
The admission of students enrolled in the laboratory of practices requires that they know and comply with the Protocol of Safety Standards in the ETSE labs. This information is available on the USC website:
https://www.usc.gal/gl/centro/escola-tecnica-superior-enxenaria
Access to intranet
Go to Documentación > Seguridade > Formación.
Click on "Protocolo de formación básica en materia de seguridade para espazos experimentais".
Ramon Felipe Moreira Martinez
Coordinador/a- Department
- Chemistry Engineering
- Area
- Chemical Engineering
- Phone
- 881816759
- ramon.moreira [at] usc.es
- Category
- Professor: University Professor
| Monday | ||
|---|---|---|
| 10:00-12:00 | Grupo /CLE_01 | Classroom A6 |
| Wednesday | ||
| 12:00-14:00 | Grupo /CLE_01 | Classroom A6 |
| Friday | ||
| 10:00-12:00 | Grupo /CLE_01 | Classroom A6 |
| 05.29.2024 10:00-12:00 | Grupo /CLE_01 | Classroom A6 |
| 05.29.2024 10:00-12:00 | Grupo /CLIS_01 | Classroom A6 |
| 05.29.2024 10:00-12:00 | Grupo /CLIL_01 | Classroom A6 |
| 07.03.2024 10:00-12:00 | Grupo /CLE_01 | Classroom A6 |
| 07.03.2024 10:00-12:00 | Grupo /CLIS_01 | Classroom A6 |
| 07.03.2024 10:00-12:00 | Grupo /CLIL_01 | Classroom A6 |
| Teacher | Language |
|---|---|
| MOREIRA MARTINEZ, RAMON FELIPE | Spanish |
| Teacher | Language |
|---|---|
| MOREIRA MARTINEZ, RAMON FELIPE | Spanish |
| Teacher | Language |
|---|---|
| MOREIRA MARTINEZ, RAMON FELIPE | Spanish |
| Teacher | Language |
|---|---|
| MOREIRA MARTINEZ, RAMON FELIPE | Spanish |