635-0421/01 – Technology of Thermal Processes (TTP)
| Gurantor department | Department of Thermal Engineering | Credits | 6 |
| Subject guarantor | doc. Ing. Zuzana Klečková, CSc. | Subject version guarantor | doc. Ing. Zuzana Klečková, CSc. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 3 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2012/2013 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Students will be able to
-classify mechanical and thermophysical properties of solid materials,
-classify charge, establish conditions of heating-up solution,
-solve simple tasks of heat energy transfer,
-apply knowledges on furnace equipment.
Teaching methods
Lectures
Individual consultations
Tutorials
Summary
The subject aims for broadening and deepening of knowledges about thermal energy transfer during the heating-up of solids in defined types of power appliances.
The intention is to show the wider context of the spread of thermal energy at practical use.
Compulsory literature:
1. KUPPAN, T. Heat Exchanger Design Handbook. Marcel Dekker, Inc. New York - Basel, 2000. ISBN 0-8247-9787- 6
2. TRINKS, W. et al. Industrial furnases. Wiley-Interscience. New York, 2003. ISBN-10: 0471387061
3. KAZANTSEV, E. I. Industrial Furnaces . Mir Publisher, Moscow, 1977. ASIN: B0000EGEXJ
Recommended literature:
Current literature will be communicated in introductory lecture.
Additional study materials
Way of continuous check of knowledge in the course of semester
Semestral prospectus, parallel proofs.
E-learning
http//www.fmmi.vsb.cz/635
Will be continuously completed.
Other requirements
There are not additional requirements for students
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Thermophysical and mechanical properties of metals and alloys.
Heat transfer in the furnaces working enclosure.
External and internal heat transfer.
External heat transfer equations. Development of thermal balance. Determination of the convection component. Determination of radiation component. External heat transfer coefficient. Formulas for the external heat transfer coefficient calculation.
Internal heat transfer. Heating of thin and thick bodies .
External and internal thermal resistance. Determination of Bi criterion. Thin and thick bodies.
Thin bodies heating-up regimes..Determination of temperature and heating-up time period.
Constant furnace temperature.Furnace is a linear function of time, heat flux incident on the charge is constant. Expression by means of criteria.
Fourier differential equation of heat conduction and uniqueness conditions. Heating regimes of thick bodies at given boundary conditions. The surface temperature is a constant, furnace temperature is constant, the velocity of temperature rise is constant, the heat flux incident on the charge is constant. Comparison of different types of heating.
Heat stresses. Permissible heating-up rate.
Subdivision of industrial furnaces and characteristics of individua types. Division factors . Thermal characteristics.
Heat exchangers, thermal and hydraulic calculation. Recuperator, regenerator. Types of flow in the exchanger. Determination of heat transfer surface. Average logarithmic temperature gradient. The heat passage coefficient. Thermal efficiency, temperature of the wall.
Power and heat balance. Individual items and their determination.
Practice
Determination of thermophysical parameters of solids depending on the temperature. External heat transfer, convection and radiation components determination. The resulting heat flux to the charge. Approximate formulas for determining the total heat transfer coefficient on the charge. Determination of heating time, determining the temperature at the end of heating-up for thin bodies. Convection and radiation formula. Using Fourier differential equation for heating-up of thick bodies. Calculations for the specific conditions of solution uniqueness. Determination of the allowable temperature gradient at the end of heating-up period.
Design of heat exchanger, calculation of exchanger heat transfer surface.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction