Tenders Description & Specification for Compression Refrigeration System
Compression Refrigeration System
Learning Objectives / Experiments:
Calculate the refrigeration capacity from the log p-h diagram and in comparison with the measured values
Function and operational behavior of the refrigeration circuit components.
Thermodynamic cycle in the log p-h diagram.
Operation with expansion valve or with capillary tubes of different lengths.
Underfilling or overfilling with refrigerant.
Calculate the coefficient of performance.
Calculate the efficiency of the compressor.
Specification
Investigation of a refrigeration system with different expansion elements.
Receiver for underfilling/overfilling the system with refrigerant.
Refrigeration circuit consisting of a hermetic compressor, condenser, evaporator and expansion element.
Transparent finned tube heat exchangers as condenser and evaporator to observe the phase transitions of the refrigerant expansion valve and capillary tubes of different lengths as expansion elements.
Software for data acquisition via USB under Windows XP or Windows Vista.
Refrigerant R134a, CFC-free.
Sensors record pressure and temperature.
Compressor equipped with two pressure switches.
Technical Data:
Compressor
Power consumption: 213W at 7,2°/32°C
Refrigeration capacity: 372W at 7,2/32°C
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
Condenser and evaporator with fan
Air flow condenser: 300m³/h
Air flow evaporator: 180m³/h
Capillary tubes: 1,5m, 3m, 6m
Receiver for refrigerant: 1,3L
Dimensions and Weight
Length x Width x Height: 1.730x790x1.760mm
Weight: 150kg
Connections
230V, 50Hz, 1 phase or 120V, 60Hz/CSA, 1 phase.
Ltekonline are the manufacturers of Compression Refrigeration System used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Refrigeration Training Kit for Engineering Teaching Lab in Universities
