TEP4255 - Heat Pumping Processes and Systems


Examination arrangement

Examination arrangement: Written examination
Grade: Letters

Evaluation Weighting Duration Grade deviation Examination aids
Written examination 100/100 4 timer

Course content

TEP4255 deals with heat pumping processes and systems applied in different kinds of refrigeration units, from smaller plants in domestic units and supermarket, to industrial plants in food and process industry, including gas liquefaction. Historic development, and importance of refrigeration technology. Thermodynamic analysis of different refrigeration processes; with special emphasis on thermodynamic losses. Properties of working fluids, including effects on the environment. Natural, environmentally friendly, working fluids. Refrigeration system components, including compressors and heat exchangers. Component design. System solutions for different kinds of applications, both refrigeration and heat pump systems.

Learning outcome

– The course provides the student with knowledge about:
- Thermodynamical process analyses
- System solution for different applications
- Working fluids physical properties and environmental consequences

The course gives the student insight about:
- Modes of operation for heat pumping processes and systems
- Main components in heat pumping processes, as compressors, evaporators, condensers and valves
- Working fluids areas of operation and environmental consequences, including the phase change

The course should enable the student to:
- Design and dimensioning of refrigeration and heat pumps for different areas of operation
- Calculate thermodynamical losses in processes for optimization of process and components
- Dimensioning of components in the process

General competence:
The course should give the student:
- Basic knowledge about thermodynamical analysis of processes
- Understanding of system and the capability to evaluate the efficiency of processes
- Overview of the implementing areas from processes for condensing of natural gas , though freezing and chilling processes to heat pumping systems for building and industrial processes.

Learning methods and activities

Lectures, theoretical exercises, practical exercises in laboratory and excursions. The lectures and exercises are in English when students who do not speak Norwegian take the course. If there is a re-sit examination, the examination form may be changed from written to oral.

Compulsory assignments

  • Exercises

Specific conditions

Compulsory activities from previous semester may be approved by the department.

Course materials


Credit reductions

Course code Reduction From To
SIO7050 7.5
More on the course



Version: 1
Credits:  7.5 SP
Study level: Second degree level


Term no.: 1
Teaching semester:  SPRING 2014

Language of instruction: English, Norwegian


Subject area(s)
  • Energy and Process Engineering
  • Energy and Indoor Environment
  • Refrigeration and Air Conditioning - Refrigeration Systems and Components
  • Technological subjects
  • Thermodynamics
Contact information
Course coordinator: Lecturer(s):

Department with academic responsibility
Department of Energy and Process Engineering


Examination arrangement: Written examination

Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
Spring ORD Written examination 100/100 2014-05-26 09:00
Room Building Number of candidates

Examination arrangement: Oral examination

Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
Summer KONT Oral examination 100/100 2014-08-13
Room Building Number of candidates
  • * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.

For more information regarding registration for examination and examination procedures, see "Innsida - Exams"

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