Measuring the transfer characteristics of five different heat exchanger models, system control via PLC

Learning objectives/experiments

• in conjunction with a heat exchanger (WL 110.01 to WL 110.05)
  • plotting temperature curves
  • determining the mean heat transfer coefficient
  • comparing different heat exchanger types

….

Transparent heat exchanger with additional temperature measuring point after half of the transfer section; parallel flow and counterflow operation

Learning objectives/experiments

• in conjunction with WL 110 supply unit
  • function and behaviour during operation of a tubular heat exchanger
  • plotting temperature curves:
    in parallel flow operation
    in counterflow operation
    ….

Typical plate heat exchanger in parallel flow and counterflow operation

Learning objectives/experiments

• in conjunction with WL 110 supply unit
  • function and behaviour during operation of a plate heat exchanger
  • plotting temperature curves:
    in parallel flow operation
    in counterflow operation
    ….

Transparent shell and tube heat exchanger in cross parallel flow and cross counterflow operation

Learning objectives/experiments

• in conjunction with WL 110 supply unit
  • function and behaviour during operation of shell and tube heat exchanger
  • plotting temperature curves:
    in cross parallel flow operation
    in cross counterflow operation
    ….

Heat transfer between water and air; cross-flow operation

Learning objectives/experiments

• in conjunction with WL 110 supply unit
  • function and behaviour of a finned tube heat exchanger
  • determine the mean heat transfer coefficient
  • influence of heat capacity
  • compare with other heat exchanger types
    ….

Cooling and heating of the heat exchangers directly tangible

Learning objectives/experiments

• fundamentals of a compression refrigeration circuit
• key components of a refrigeration system
  • compressor, evaporator, condenser, expansion element
• relationship between the pressure and boiling point of a liquid
• operation of a refrigeration system / heat pump
  ….

Transparent components allow observing how the state of the heat transfer medium changes

Learning objectives/experiments

• fundamentals of geothermal energy
• operating behaviour of a geothermal probe with heat pipe principle
• determination of the amount of heat that can be dissipated in the heat pipe with variation of the thermal load
• variation of the filling level of the heat transfer medium contained
• examination of the radial temperature profile in a sand sample and determination of the thermal conductivity
  ….

Use of geothermal energy in an open system without thermal repercussion

Learning objectives/experiments

• fundamentals of geothermal use
• operating behaviour of a two-well system
• hydraulic and thermal properties of the ground
• determination of the usable heat capacity
• fundamentals and energy balance of a heat pump

Heat pump for operation with different sources, operating the heating controller via touch screen or web browser

Learning objectives/experiments

• familiarisation with heat pump applications for heating rooms and hot water
• using the heat pump for cooling
• advantages and disadvantages of various system configurations (brine heat pump, air heat pump)
• configuration and adjustment of a heating controller for heat pump control
• operating behaviour under varying heat supply and demand
  ….

Can be used as heat sink or heat source

Learning objectives/experiments

• energy balance in combined heating systems for domestic hot water generation and heating
• heat transfer in an underfloor heating system
• use of heat sources for heat pump systems
• learning objectives of the HL 320 modular system

Can be used as heat sink or heat source

Learning objectives/experiments

• use of a fan convector for heating and cooling rooms
• how the temperature difference between the heating feed and return affects the overall efficiency of a heating system
• operating conditions when used as an air heat exchanger in a heat pump system
• comparison of an air heat exchanger with other heat sources in a heat pump system

Laboratory scale gas-fired steam generator for wet or superheated steam; integrated condenser

Learning objectives/experiments

• specific characteristic values of a steam boiler
• efficiency of a steam generator
• analysis of the exhaust gases
• influence of different burner settings
• saturation temperature and pressure of the steam
  ….

Single-stage steam turbine with power output measurement; steam supply via ET 850, gas-fired or ET 852, electrical

Learning objectives/experiments

• principle of operation of a steam turbine:
  • steam consumption of the turbine
  • turbine output at different settings
  • investigation of the losses occurring in different turbine components
  • power and torque curve
    ….