SR2020 Heat Exchangers in the Refrigeration Circuit School Educational Equipment Vocational Trainer Workbench Refrigeration Trainer Learning Objectives / Experiments - Different heat exchangers and their use inrefrigeration * coaxial coil heat exchanger * finned tube heat exchanger * tubular heat exchanger * plate heat exchanger - Find out the correct installation position - Determine energy flows - Effect of superheating and supercooling of therefrigerant on the cyclic process - Design of a compression refrigeration system - Representation of the cyclic process in thelog p-h diagram Specification [1] Refrigeration system with 4 different heatexchangers: coaxial coil heat exchanger, finned tubeheat exchanger, tubular heat exchanger, plate heatexchanger [2] Combinations of different media: water/refrigerant,refrigerant/refrigerant,air/refrigerant [3] Water circuit with tank and pump to cool thecondenser and heat the evaporator [4] Superheater can be disabled via bypass [5] Flow meter and thermometer in the water circuit todetermine the exchanged heat flows [6] Thermometers at all relevant points of the system [7] Refrigerant R134a, CFC-free Technical Data Compressor - refrigeration capacity: 580W at -5/32°C - power consumption: 235W at -10/32°C Receiver: 1.4L Measuring ranges - pressure: -1...9bar / -1...24bar - temperature: 3x -20...30°C, 9x 0...60°C, 1x 0...100°C - flow rate: 2x 240L/h Dimensions and Weight l x w x h: 1800x750x1900mm Weight: approx. 200kg Connections 230V, 50Hz, 1 phase
