Principles of cold production

Water Air
Soil             Waste
ET 101
     
ET 352
     
ET 480
Simple compression refrigeration circuit               Vapour Jet Compressor in Refrigeration Engineering        Absorption refrigeration system                           
Cooling and heating of the heat exchangers directly tangible                                                                                                                                          Investigation of cold production using thermal energy. Transparent condenser and evaporator allow the view into the inner workings      Investigation of a thermally driven refrigeration system without compressor that can be heated with either gas or electrically                     
         
ET 120
 
ET 122
 
Cooling using the Peltier effect    Vortex cooling device
Demonstration of the thermoelectric effect                                                   Demonstration of cooling and heating with the aid of compressed air