ASR2020 Heat Exchangers In The Refrigeration Circuit Vocational Training Equipment Refrigeration Lab Equipment
Learning Objectives / Experiments
– Different heat exchangers and their use in refrigeration
* 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 the refrigerant on the cyclic process
– Design of a compression refrigeration system
– Representation of the cyclic process in the log p-h diagram
Specification
[1] Refrigeration system with 4 different heat exchangers: coaxial coil heat exchanger, finned tube heat exchanger, tubular heat exchanger, plate heat exchanger
[2] Combinations of different media: water/refrigerant, refrigerant/refrigerant, air/refrigerant
[3] Water circuit with tank and pump to cool the condenser and heat the evaporator
[4] Superheater can be disabled via bypass
[5] Flow meter and thermometer in the water circuit to determine the exchanged heat flows
[6] Thermometers at all relevant points of the system
[7] Refrigerant AR134a, 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
