WL 420 - WL 460  Ι  Thermoline

WL 420 - WL 460  Ι  Thermoline

Fundamentals of heat transfer


Overall didactic concept for targeted teaching on the fundamentals of heat transfer.


  • accurate measurements
  • software-controlled
  • training software

The series for a simple introduction to a complex subject.



Get an overview of the Thermoline, software and functions.


Overview of WL 420 - WL 460



WLxxx zusammen weiss



WL 420 Heat conduction in metals

Investigation of the thermal conductivity of different metals

Learning objectives/experiments
  • time dependency until the steady state is reached
  • calculate the thermal conductivity λ of different metals
  • calculate the thermal resistance of the specimen
  • heat transfer with different specimens connected in series
  • effect of specimen length on heat transfer


    » About the product


WL 422 Heat conduction in fluids

Determination of the coefficient of thermal conductivity for gaseous and liquid fluids

Learning objectives/experiments
  • steady heat conduction in gases and liquids:
    • determine the thermal resistance of fluids
    • determination of thermal conductivities λ for different fluids at different temperatures
  • transient heat conduction in fluids:

WL 430 Heat conduction and convection

Investigation of heat conduction and convection using the example of a cooling fin

Learning objectives/experiments
  • effect of heat conduction and convection on heat transfer
  • effect of free and forced convection on heat transfer
  • calculate convective heat transfers
  • effect of different materials on heat conduction
  • effect of specimen length on heat transfer


    » About the product


WL 440 Free and forced convection

Calculation of convective heat transfer at different geometries:
flat plate, cylinder, tube bundle

Learning objectives/experiments
  • free and forced convection
  • calculation of convective heat transfer at different geometries

WL 460 Heat transfer by radiation

Effect of different surfaces on heat transfer

Learning objectives/experiments
  • verify Lambert’s inverse-square law
  • verify Stefan-Boltzmann law
  • verify Kirchhoff’s law
  • study transient behaviour
  • create power balances


    » About the product



Heat conduction in metals with WL 420


Operation, data acquisition and remote learning



  • simple operation of the system via the software
  • adjust operating parameters via respective button icons
  • check and read off measured values

Geometric temperature curve

  • representations of the temperature curves make it easier to understand the respective heat transfer mechanisms

Time dependency

  • representation of the measured values as a function of time
  • plot and log your own characteristics
  • freely selectable form of presentation of the measured values:
    measured values selection, resolution, colour, time intervals
WL110 Data

Network capability

  • full network access to ongoing experiments by any number of external workstations with GUNT software, via the customer's own network
  • experiments can be independently followed and evaluated by students at all workstations when using a single training system


    » Further information

Remote learning set up

This video shows you how you can also use any GUNT device for remote learning.



» Further information


E-Learning course

E Learn WL110

A free E-Learning course on heat transfer enables independent learning of the theoretical fundamentals and follow-up of the experiments.


  • multi-media online course, which enables learning independent of time and place
  • check through targeted review of the learning objectives
  • all content is free of charge - you are welcome to use extracts for your lectures


» E-Learning course



In our download area, you will find all documents available as PDF in one place.
You are also welcome to use extracts for your lessons.



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