Laboratory Stand “Solar Thermal Energy and Heat Pump”

Learning objectives/experiments:

1. Energy balance in combined heating systems for demonstrating hot water production and heating
2. Heat transfer in an underfloor heating system
3. Use of heat source for heat pump systems

Pipes:

• Lengths (not less than): 10m, 20m, 30m
• Material: polyethylene
• Wall thickness: 2mm
• Outer diameter: 16mm
• Operating pressure: max 3bar

Tank:

• Volume: 200L

Measuring ranges:

• Temperature: 0..160°C
• Flow rate: 0…1000L/h

Specifications:

• Evaporator:
  • 1.5KW variable load electrical heaters
• Compressor:
  • 1HP belt driven type
• Condenser:
  • Water cooled by internal cooling heaters
• Expansion valve:
  • Thermostatically controlled
• Instrumentations:
  • Pressure for refrigeration cycle, refrigerant and cooling water flowrates, evaporator and compressor motor power input, and temperature at various locations. The motor torque is determined by means of a load cell.
• Safety:
  • Condenser pressure and evaporator heater temperature are limited by automatic cut-outs.