TEP4255 - Heat Pumping Processes and Systems


Examination arrangement

Examination arrangement: School exam
Grade: Letter grades

Evaluation Weighting Duration Grade deviation Examination aids
School exam 100/100 4 hours D

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, with focus on natural, environmentally friendly, working fluids. Refrigeration system components, including compressors, heat exchangers and expansion devices. Component design. System solutions for different applications, both refrigeration and heat pump systems. Low temperature gas condensing systems. Heat driven systems (Absorption).

Learning outcome

Knowledge: The course provides the student with knowledge about: - Thermodynamical process analyses - Working fluids physical properties and environmental consequences - System solution for different applications The course gives the student insight about: - Modes of operation for heat pumping processes and systems - Working fluids areas of operation and environmental consequences, including the phase change (liquid and gas) - Main Components operations in heat pumping processes, as compressors, evaporators, condensers and valves - Energy efficient improvements, including cold thermal storage.

Skills: 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 systems and components using digital tools

General competence: The course should give the student: - Basic knowledge about thermodynamical analysis of processes - Understanding of system and the capability to evaluate the energy efficiency of processes (energy quality) - 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 an excursion in Trondheim. The lectures and exercises are in English. Students are free to choose Norwegian or English for written assessments. The exam will be given in English only.

Compulsory assignments

  • Exercises

Further on evaluation

If there is a re-sit examination, the examination form may be changed from written to oral.

Required previous knowledge

The student require minimum knowledge of TEP4120 Thermodynamic 1 at NTNU as knowledge before entering the course.

Course materials

Compendium under development. I addition selected chapter from other books.

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 2024

Language of instruction: English

Location: Trondheim

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

Department with academic responsibility
Department of Energy and Process Engineering


Examination arrangement: School exam

Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
Spring ORD School exam 100/100 D 2024-06-05 09:00 INSPERA
Room Building Number of candidates
SL310 lilla sone Sluppenvegen 14 33
Summer UTS School exam 100/100 D INSPERA
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"

More on examinations at NTNU