MJ2425 Cooling of Electronics 6.0 credits


  • Education cycle

    Second cycle
  • Main field of study

    Mechanical Engineering
  • Grading scale

    A, B, C, D, E, FX, F

At present this course is not scheduled to be offered.

Intended learning outcomes

The aim of the course is to give knowledge concerning cooling problems in electric and electronic systems, as well as knowledge about methods for thermal design of such systems.

After this course the student should be able to:

  • describe, and assess cooling problems in electric and electronic systems
  • perform thermal design work using methods such as:
    – compact models of electronic components
    – the air efficiency method for selection of fans
    – the thermal territory method
  • design heat sinks, and assess the impact of flow bypass
  • describe and apply different compact models for characterization of components
  • describe different liquid cooling techniques and assess their capability and applicability
  • assess the capability and applicability of different commercial calculation tools.

Course main content

A brief repetition of the basics of refrigeration. Characterization of electronic components. The cooling efficiency concept, the air efficiency method for choice of fans. The thermal territory method for placing of components on circuit boards. Optimization of fin distances. Design of heat sinks in open geometries. Approximation of contact resistances. Liquid cooling in one-phase and two-phase. Orientation about commercial calculation tools (FEM- and CFD-programmes).


MJ1401 Heat transfer and SG1220 Fluid mechanics for engineers or SG1217 Fluid Mechanics Basic Course, or equivalent courses


Mälhammar, Å.: Thermal design for Electronics, 2003
Palm, B.:Short notes on heat transfer



  • LAB1 - Laboratory Work, , grading scale: P, F
  • PRO1 - Project, 1.5, grading scale: P, F
  • TEN1 - Examination, 4.5, grading scale: A, B, C, D, E, FX, F

Requirements for final grade

Written exam (TEN1; 4,5 cr)
Student project (SEM1; 1,5 cr
Lab work (LAB; 0 cr)

Offered by

ITM/Energy Technology


Hans Havtun, e-mail hans.havtun@energy.kth.se


Hans Havtun <hans.havtun@energy.kth.se>

Supplementary information

 Replaces 4A1625


Course syllabus valid from: Autumn 2011.
Examination information valid from: Autumn 2007.