ET 102 Heat Pump Demonstrational Equipment Technical Skills Training Equipment Thermal Lab Equipment
Utilisation of ambient heat for water heating Features - utilisation of ambient heat for water heating - display of all relevant values at the location of measurement - dynamic recording of the refrigerant mass flow rate Learning objectives/experiments - design and operation of an air-to-water heat pump - representation of the thermodynamic cycle in the log p-h diagram - energy balances - determination of important characteristic variables -- compressor pressure ratio -- ideal coefficient of performance -- real coefficient of performance - dependence of the real coefficient of performance on the temperature difference (air-to-water) - operating behaviour under load Specification [1] investigation of a heat pump with a water circuit as load [2] refrigeration circuit with compressor, evaporator with ventilator, thermostatic expansion valve and coaxial coil heat exchanger as condenser [3] EC ventilator enables very high load variability [4] hot water circuit with pump, tank and condenser as heater [5] additional cooling via pipe coil in the hot water tank and external cooling water [6] record and display of all relevant measured values [7] refrigerant mass flow rate precisely calculated via software [8] software for data acquisition via USB under Windows 10 [9] refrigerant R513A, GWP: 631 Technical data Compressor - refrigeration capacity: 372W at 7,2/55°C - power consumption: 205W at at 7,2/55°C Coaxial coil heat exchanger (condenser) - refrigerant content: 0,55L - water content: 0,3L Finned tube evaporator - transfer area: approx. 0,175m2 - air flow 0…1400m3/h Pump - max. flow rate: 1,9m3/h - max. head: 1,4m Hot water tank volume: approx. 4,5L Refrigerant: R513A - GWP: 631 - filling volume: 1kg - CO2-equivalent: 0,6t Measuring ranges - pressure: 2x -1...15bar - temperature: 4x 0...100°C, 2x -100...100°C - power: 0...6000W - flow rate: -- water 0...108L/h -- cooling water 10...160L/h -- refrigerant calculated 0...17kg/h 230V, 50Hz, 1 phase; 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase; UL/CSA optional LxWxH: 1630x800x1900mm Weight: approx. 195kg
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