SR2039 Compression Refrigeration System Didactic Equipment School Equipment Training Refrigeration Trainer Learning Objectives / Experiments - function and operational behaviour of the refrigeration circuit components - operation with expansion valve or with capillary tubes of different lengths - underfilling or overfilling with refrigerant - thermodynamic cycle in the log p-h diagram - calculate the refrigeration capacity from the log p-h diagram and in comparison with * the measured values * calculate the coefficient of performance * calculate the efficiency of the compressor Specification [1] investigation of a refrigeration system with different expansion elements [2] refrigeration circuit consisting of a hermetic compressor, condenser, evaporator and expansion element [3] transparent finned tube heat exchangers as condenser and evaporator to observe the phase transitions of the refrigerant [4] expansion valve and capillary tubes of different lengths as expansion elements [5] receiver for underfilling/overfilling the system with refrigerant [6] sensors record pressure and temperature [7] compressor equipped with two pressure switches [8] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista [9] refrigerant R134a, CFC-free Technical Data Compressor - power consumption: 213W at 7,2°/32°C - refrigeration capacity: 372W at 7,2/32°C Condenser and evaporator with fan - max. air flow condenser: 300m³/h - max. air flow evaporator: 180m³/h Capillary tubes: 1,5m, 3m, 6m Receiver for refrigerant: 1,3L Measuring ranges - pressure: -1...9bar / -1...24bar - temperature: 4x -40...150°C, 1x -100...100°C - flow rate: 2...18m³/h - electric power consumption: 0...1.000W Dimensions and Weight LxWxH: 1.730x790x1.760mm Weight: approx. 150kg Connections 230V, 50Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
