HEAT PUMP AIR-CONDITIONING SYSTEM SIMULATOR.

Features

• air-to-water heat pump,- heating and cooling operation possible,- high practical relevance by using industrial components from refrigeration,- different operating modes can be set via solenoid valves.

• 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

• different operating modes selectable via solenoid valves

• refrigeration circuit with compressor, condenser (heat exchanger with fan), 2 evaporators with fan (refrigeration and freezing stage)

• glycol-water circuit with tank, pump and coaxial coil heat exchanger

• coaxial coil heat exchanger and heat exchanger with fan can both be used as condenser or evaporator in the refrigeration circuit

• 1 thermostatic expansion valve each for all heat exchangers and evaporators,

• 1 additional evaporation pressure controller and 1 capillary tube for the refrigeration stage evaporator,[7]

• displays for temperature, pressure, flow rate and power consumption of the compressor

• refrigerant mass flow rate precisely calculated via software

• software for data acquisition via USB under Windows 10, Technical data: Compressor,- refrigeration capacity: 1561W at 5/40°C,- power consumption: 759W at 5/40°C. Heat exchanger with fan,-transfer area: 1,25m2,- volumetric air flow rate: 650m3/h. Evaporators with fan,- refrigeration stage transfer area: 1,21m2, volumetric air flow rate: 80m3/h,- freezing stage transfer area: 3,62m2, volumetric air flow rate: 125m3/h. Refrigerant: R513A, GWP: 631,- filling volume: 1,5kg, CO2-equivalent: 0,9t, Measuring ranges,- temperature: 11x -50...150°C,- pressure: 2x,-1...15bar, 1x -1...24bar,- mass flow rate: refrigerant, calculated 2,5...65g/s,- power: 0...1150W,230V, 50Hz, 1 phase