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HL 320.04

- Conversion of solar energy into heat in the evacuated tube collector
- Pivotable collector with connections for the HL 320 modular system
- Components for operational and system reliability from real-world modern heating technology
- Suitable for sunlight and artificial light


Technical Description

The HL 320.04 experiment module contains a modern evacuated tube collector and allows you to convert solar energy into heat. Evacuated tube collectors reach much higher operating temperatures compared to simple flat plate collectors due to the lower thermal losses.

HL 320.04 is one of the modules from the HL 320 Solar Thermal Energy and Heat Pump modular system. The experiment module can be incorporated into the modular system in a variety of different ways. The module can be used both for generating heated domestic water and for the combined production of domestic hot water and for heating rooms.   

Pipe connections for the heat transfer fluid are easy to create and alter thanks to the quick-release couplings. 

Carefully structured instructional materials have been created for the intended module combinations with the HL 320.04 module. As part of the documentation for the overall HL 320 system, these materials set out the basic principles and provide a step-by-step guide through the experiments. 

Learning Objectives / Experiments
- design and operation of the evacuated tube collector
- determining the net power
- parameters affecting collector efficiency
- integration of an evacuated tube collector in a modern heating system 
- hydraulic and control engineering operating conditions
- creating energy balances
- optimisation of operating conditions for different types of use


[1] trainer for investigating the function and operating behaviour of an evacuated tube collector
[2] evacuated tube collector with selective coating
[3] adjustable collector tilt angle
[4] solar circulation station with pump, expansion tank and safety valve
[5] measurement instruments and controls by HL 320.05 
[6] operation with solar radiation or HL 313.01 Artificial Light Source

Technical Data

- total area: 2,1m²
- absorbing surface: 1,5m²
- absorber content: 1,5L  
- rated throughput: 58L/h  
- safety valve: 4bar

Solar circuit station
- solar pump: 3-stage
- safety valve: 4bar
- manometer: 0...6bar
- balancing valve: 1...13L/min

Dimensions and Weight
LxWxH: 1660x800x2300mm
Weight: approx. 220kg Required for Operation  230V, 50Hz, 1 phase

Scope of Delivery
1 trainer
1 set of instructional materials

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