Instructors: Dr. Gerhard Herres; Prof. Dr. Jadran Vrabec
Event type:
Lecture
Org-unit: Maschinenbau
Displayed in timetable as:
eff. W-Übertrag.
Hours per week:
2
Language of instruction:
German
Min. | Max. participants:
- | -
Requirements and recommendations:
Heat and Mass Transfer
Aim of the event:
To reduce energy and high grade material the development of heat exchanger, which use higher efficient methods than usual, can give valueable contributions. Heat transfer with phase change is especially useful. Selected methods will be presented from physical fundamentals to practical construction of the apparatus, whose design is imparted in exercises.
Target group:
Students of mechanical and chemical engineering and plastics technology further production technics and product development.
Contents:
1 Enhancement methods for single phase heat transfer
- Area enhancement
- producing of turbulence
2 Boiler
- Heat- and Mass transfer with vapour bubbles
- Boiling in free convection
- Boiling in forced convection
- Mixture boiling
- Finned tube evaporator
- Evaporator with high efficiency tubes
- Flow-Evaporator with turbulence
3 Condensators
- Film condensation, droplet kondensation
- Influence of vapour and condensate flow
- Mixture condensation, Influence of non-condensable gases
- Condensators with high efficency tubes
4 Heat Pipes
- Theoretical basics
- Types of heat pipes; fluids for heat pipes
- Charakteristics of use, borders of use
- Application for heat recovery, for electronic cooliing, in satellits
Contact person:
Dr. Gerhard Herres
Literature:
Lecture script;
Stephan: Heat Transfer in Boiling and Condensation, Springer Verlag, 1988;
Webb: Principles of Enhanced Heat Transfer, 1994
Thome: Enhanced Boiling Heat Transfer, 1990;
Dunn u. Reay: Heat Pipes, Pergamon, 1994
Supplementary events:
Excercise-/Projectseminar for energy efficient Heat Transfer Methods
Caloric Apparatus
Efficient Utilisation of Energy
Refrigeration/Heat Pump Technology
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