AFT115 Vapour Jet Compressor Training System Didactic Equipment Thermal Experiment Equipment
The System Should cover the following Training Objective:
Familiarization with compression refrigeration systems based on the vapour jet method
Investigation of clockwise and anticlockwise Rankine cycle
Investigation of energy balances
calculation of the coefficient of performance of the refrigeration circuit
Familiarization with thermodynamic cycle in the log p-h diagram
Investigation of operating behaviour under load
Familiarization with solar thermal vapour jet refrigeration
Practice of solar heat for cold production
Components of solar refrigerating plants according to the vapour jet method
Operation of a vapor jet compressor on a solar thermal flat collector
Optimization of the operating point
Extended concept on the use of thermal solar plants
Energy management for solar thermal cooling systems
Investigation of the functions of the flat collector and the solar circuit
Acquiring the net power
Investigation of relationship between flow and net power
Acquiring the collector efficiency
Investigation of relationship between temperature difference (collector/environment) and collector efficiency The System comprising the following:
1.Vapour Jet Compressor Unit
Minimum Technical Specifications Required (like or better than):
The system is placed on a rigid frame of four castor wheels
Refrigeration circuit with condenser, evaporator and vapour jet compressor of 1,7mm min. diameter of convergent-divergent nozzle and 7mm min. diameter of mixing jet for refrigerant
Vapour circuit with pump and vapour generator for operating the vapour jet compressor
Transparent tank: 3.5L with water-cooled pipe coil of area: 0.17m2 as condenser
Transparent tank: 3.5L with adjustable heater as an evaporator of power: 4x 125W
Flooded evaporator with float valve as expansion element
Vapour generator with electrically heated water jacket
Vapour generator refrigerant tank of 0.75L, 9L water jacket, 2kW heater power
Pump of maximum flow rate:1,7L/min and maximum head: 70mWS
Flow meter to measure flow rate (cooling water) of range 0 to 1.5
2x pressure sensors of range 0 to 10bar and another 2x of range -1 to 9bar
12x temperature sensors of range -20 to 100°C
Power measuring range: 0 to 750W and 0 to 3kW
Data acquisition software
USB interface
PC Core i7, DVD+/-RW, 8GB RAM, 1TB Hard Disk Drive, Optical Mouse, Multimedia Keyboard, Monitor (21") LED
2.Solar Heat Supply Unit
Minimum Technical Specifications Required (like or better than):
feed line to the vapour generator with temperature and flow rate measurement
return line with temperature measurement
measured values transferred to Vapor Jet Compressor Unit for further processing in the software
Pump with power consumption: 40Wm max. flow rate: 1m3/h and head: 4,8m
Temperature measuring ranges: 2x 0 ~ 120 °C
flow rate measuring range: 10 ~ 300 L/h
3.Domestic Water Heating Unit
Minimum Technical Specifications Required (like or better than):
The system is placed on a rigid frame of four castor wheels
Selectively absorbing coating solar thermal flat collector
Adjustable collector tilt angle
Solar circulation station with pump, expansion vessel and safety valve (4bar)
Hot water circuit (of absorbing surface: 2.3m2, rated throughput: 20 to 200L/h and operating pressure: 1 to 3bar) with buffer tank (of capacity: 70L), pump and plate heat exchanger (of 3kW, 10 plates)
4x bimetallic thermometers: 0 to 120°C
Solar controller with temperature, flow and illuminance sensors
Data logger and SD memory card
Flow rate sensor measuring range varies from 20 to 300L/h
Artificial Light Source Unit 8 KW
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