Home           Products           Company           Contact us     
> Fundamentals of Thermodynamics
> Applied Thermodynamics
> Renewable Energies
> Power Engines and Machines
> Internal Combustion Engines
> Refrigeration and Air Conditioning Technology
> Heating and Ventilation in Buildings
> Sanitary Systems
Products  |  Thermal Engineering and HVAC  |  Renewable Energies  |  ET 202
ET 202 Principles of Solar Thermal Energy Show data sheet (pdf file) Print page
ET 202 - A product from the GUNT 2E range
Technical Description
  Solar thermal systems convert solar energy into usable thermal energy. ET 202 allows you to demonstrate solar thermal heating of domestic water in an illustrative manner.
  A lighting unit simulates natural solar radiation and allows a range of experiments to be carried out in the laboratory. The light is converted into heat in an absorber and transferred to a heat transfer fluid. A pump conveys the heat transfer fluid through a hot water tank. The heat is released to the water by an integrated heat exchanger in the tank.
  ET 202 can be used to study a variety of angles of incidence and different illuminance. The pre-installed absorber with selective coating can be replaced for a more simple blackened absorber, so as to obtain comparative measurements of collector losses. External heat consumers can be attached to the tank via two connectors.
    The trainer is fitted with sensors to detect the relevant temperatures (collector inlet, collector outlet, ambient air and tank) and the illuminance.
  The measured values are displayed on the device and can simultaneously be transferred to a PC via USB. Using the PC, the data can be clearly displayed in the software provided and analysed further.
    The well-structured instructional material sets out the basic principles and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- Design and operation of 
   a simple solar thermal system
- Determining the net power
- Energy balance on the solar collector
- Influence of illuminance, 
  angle of incidence and flow
- Determining efficiency curves
- Influence of various absorbing surfaces


* Demonstration model of a solar thermal systemc
* Lighting unit for operation in the laboratoryc
* Hot water tank with additional electric heaterc
* Inclinable flat collector with replaceable absorbersc

Alternative products
HL 313 -- Domestic Water Heating with Flat Collector

[1] Functional demonstration model of a solar thermal system
[2] Lighting unit with 25 halogen bulbs
[3] Spacing and tilt adjustable collector
[4] Two replaceable absorbers with different coating
[5] Solar circuit with pump and variable flow
[6] Hot water tank with tube coil as heat exchanger and electrical auxiliary heater
[7] Sensors detect temperature and illuminance
[8] LabVIEW software for collecting data via USB 

Technical Data

Flat collector
- absorbing surface: 320x330mm
- tilt angle: 0...60
Lighting unit
- lamp field: 25x 50W
- adjustable flow: 0...24L/h
Measuring ranges
- temperature: 4x0...100C
- flow: 0...30L/h
- illuminance: 0...3kW/m

Dimensions and Weight
LxWxH: 1895x800x1500mm
Weight: approx. 130kg
Required for Operation
230V, 50/60Hz, 1 Phase or 230V, 60Hz, 3 Phase or 208V, CSA, 3 Phase
Scope of Delivery

1 trainer
1 measuring beaker
1 absorber
1 CD with LabVIEW software + USB cable
1 set of instructional material

Order Details

061.20200  ET 202  Principles of Solar Thermal 


© 2005 G.U.N.T. Gerätebau GmbH