Dish Stirling systems

Dish/Stirling systems mainly consist of the parabolically shaped concentrator (dish), a solar receiver and a Stirling motor as thermal engine with interconnected generator.

The parabolic concentrator is tracking the sun in two axes, so that it reflects the direct solar radiation onto a receiver positioned in the focus of the concentrator. The radiation energy transformed into heat within the receiver is transferred to the Stirling motor, which, being a thermal engine, converts the thermal energy into mechanical energy. A generator is directly coupled to the Stirling motor shaft, which converts the mechanical energy into the desired electrical energy (Fig. 5.20). For hybrid operation, the system may be heated in parallel or in addition by a gas burner (operating e.g. by natural gas or biogas).

In the following, the main components of such systems are discussed. Subsequently, the corresponding complete systems are assessed.

Concentrator bowl

Annular mounting structure

Concentrator bowl

Annular mounting structure

Azimuth drive

Dish Stirling Systems

Foundation

Azimuth drive

Foundation

Fig. 5.20 Dish/Stirling systems (Distal II)

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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