ET 910.11 Refrigeration components for advanced experiments
ET 910.11 enables in conjunction with ET 910, ET 910.10, ET 910.05 and the accessory set ET 910.12 the performance of advanced experiments related to refrigeration.
Commercial components are used in practical experiments. These components are mounted on plates ready to be connected and are arranged clearly in the frame of ET 910.05.
The set includes complex refrigeration components, such as capacity controller, intake pressure controller, defrost timer, four-way reversing valve and refrigeration controller. The four-way reversing valve, for example, is used to reverse the circuit. This allows for the defrosting of an iced-up evaporator by operating it temporarily as condenser. Manometers provide an insight to the pressure ratios in the refrigeration circuit.
Via pressure and temperature measurements the changes of state of the refrigerant can be tracked and entered into the log p-h diagram. The temperature is measured by interlaboratory thermometers.
ET 910.11 enables in conjunction with ET 910, ET 910.10, ET 910.05 and the accessory set ET 910.12 the performance of advanced experiments related to refrigeration.
Commercial components are used in practical experiments. These components are mounted on plates ready to be connected and are arranged clearly in the frame of ET 910.05.
The set includes complex refrigeration components, such as capacity controller, intake pressure controller, defrost timer, four-way reversing valve and refrigeration controller. The four-way reversing valve, for example, is used to reverse the circuit. This allows for the defrosting of an iced-up evaporator by operating it temporarily as condenser. Manometers provide an insight to the pressure ratios in the refrigeration circuit.
Via pressure and temperature measurements the changes of state of the refrigerant can be tracked and entered into the log p-h diagram. The temperature is measured by interlaboratory thermometers.
- setup of more complex refrigeration circuits
- sophisticated components for advanced experiments
Rated controller capacity at t0=-10°C, tc=25°C
- evaporation pressure: 2,8kW at Δp=0,2bar
- intake pressure: 5,3kW at Δp=0,2bar
- capacity: 4,8kW at offset=0,7bar
Thermostat: -5…35°C
Refrigeration controller: -40…110°C
Post-injection valve: -45…35°C
Time relay
- response delay: 0,05s…100h
Setting ranges
- evaporation pressure controller: 0…5,5bar
- intake pressure controller: 0,2…6bar
- capacity controller: 0,2…6bar
- components for the setup of complex refrigeration circuits in conjunction with ET 910 and ET 910.10
- post-injection valve
- refrigeration controller with PTC sensor
- defrost timer, timing interval 30min
- time relay
- four-way reversing valve, solenoid valves
- electric thermostat as temperature controller
- power and auxiliary contactor
- setup of different refrigeration circuits
- design, operation and adjustment of components
- evaporation pressure, intake pressure, capacity and refrigeration controllers
- electric thermostat
- manual valve as expansion element
- post-injection valve
- solenoid valve with coil
- four-way reversing valve
- power and auxiliary contactor
- time relay
- defrost timer
- hot gas defrosting
- read and understand technical drawings and operating instructions
- fault finding