Model Of A Refrigeration System And Freezing Stage
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Product Description
MODEL OF A REFRIGERATION SYSTEM WITH REFRIGERATION AND FREEZING STAGE
The HSI training system for refrigeration and air conditioning technology. In combination with the base unit the operational model of a refrigeration system with refrigeration and freezing stage results. The model is plugged onto the base unit, secured using fasteners and connected with refrigerant hoses to become a complete refrigeration circuit.
In refrigeration and freezing combinations evaporators are preferably connected in parallel. To increase the refrigeration capacity, evaporators are operated connected in series. Here different pressure levels in the evaporators can be used to obtain different temperature ranges for refrigeration or freezing. Two separate refrigeration chambers with evaporator and expansion elements.
The operation of individual system components, here temperature control, fan, heater, compressor and solenoid valves, takes place via the software. The software offers the option to simulate faults. Temperatures and pressures in the system are recorded by sensors and displayed dynamically in the software. The effect of parameter changes can be tracked online in the log p-h diagram. Fundamentals and individual components are represented in the educational software for ET 915.02. Performance assessments check the learning progress. With the aid of the
authoring system further exercises and performance assessments can be created.
Learning Objectives / Experiments
- Design and operation of a refrigeration system with
- Two evaporators
- Series and parallel connection of two evaporators
- Familiarisation with the different expansion
- Elements
- Operation with capillary tube
- Operation with expansion valve
- Operating behaviour under load
- Refrigeration cycle in the log p-h diagram
- Effect of the evaporation pressure
- Fault simulation
Specification
- Model of a refrigeration system to plug onto the base unit HIS Training System
- Training system with HSI technology
- Each refrigeration chamber includes: evaporator with fan (to recirculate the air) and heater to generate the cooling load
- Refrigeration chambers with transparent front
- Adjustable evaporation pressure controller
- Selectable expansion elements: expansion valve or capillary tube
- Operating modes of the system configurable via 5 solenoid valves
- Sensors to record temperature and pressure
- Operation of solenoid valves, fan, heater and fault simulation via software
- Software: educational software, data acquisition, system operation
- Software for data acquisition via USB under Windows Vista or Windows 7
Technical Data
- Refrigeration chamber: LxWxH: 270x270x220mm
- Electric PTC heater as cooling load: 210W
- Capillary tube: length 2m
- Evaporation pressure controller: 0...5,5bar
Measuring ranges
- Temperature: 6x -50...50°C
- Pressure: 2x -1...9bar
Dimensions and Weight
- LxWxH: 850x380x750mm
- Weight: approx. 45kg
Enter Buying Requirement Details
Other Products in 'Fluid Mechanics Lab Equipment' category
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