ASR2010 heat pump for cooling and heating operation Didactic Equipment Air Conditioner Training Equipment
Learning Objectives / Experiments
– design, operation and key components of a heat pump or refrigeration system
– representation of the thermodynamic cycle in the log p-h diagram
– comparing different operating modes
– measurement of compressor capacity and heating or cooling capacity in the glycol-water circuit
– determination of
* efficiency
* coefficient of performance of heat pump and
refrigeration system
* specific compressor load
* compressor pressure ratio
* specific cooling capacity
* specific refrigeration capacity
– comparing key figures of heat pump and
refrigeration system
Specification
[1] air-to-water heat pump for cooling or heating operation
[2] different operating modes selectable via solenoid valves
[3] refrigeration circuit with compressor, condenser (heat exchanger with fan), 2 evaporators with fan (refrigeration and freezing stage)
[4] glycol-water circuit with tank, pump and coaxial coil heat exchanger
[5] coaxial coil heat exchanger and heat exchanger with fan can both be used as condenser or evaporator in the refrigeration circuit
[6] 1 thermostatic expansion valve each for all heat exchangers and evaporators
[7] 1 additional evaporation pressure controller and 1 capillary tube for the refrigeration stage evaporator
[8] displays for temperature, pressure, flow rate and power consumption of the compressor
[9] software for data acquisition with USB under Windows Vista or Windows 7
[10] refrigerant AR134a, CFC-free
Technical Data
Compressor
– refrigeration capacity: 934W at -6,7/55°C
– power consumption: 620W at -6,7/55°C
Heat exchanger with fan
– transfer area: 1,25m², volumetric air flow
rate: 650m³/h, capacity: 1148W at DT=15K
Evaporators with fan
– refrigeration stage
* transfer area: 1,21m², volumetric air flow
rate: 80m³/h, capacity: 140W (tAL1=5°C, ADT1=10K)
– freezing stage
* transfer area: 3,62m², volumetric air flow
rate: 125m³/h, capacity: 330W (tAL1=5°C, ADT1=10K)
Coaxial coil heat exchanger
– capacity: 1,6kW at 0°C; DT=9K
Measuring ranges
– temperature: 11x -50…150°C
– pressure: 2x -1…15bar, 1x -1…24bar
– flow rate (refrigerant): 1x 4…40L/h
– flow rate (glycol-water): 1x 2,5…65g/s
– power: 0…1150W
Dimensions and Weight
LxWxH: 2210x800x1900mm
Weight: approx. 330kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Water connection
