Concentrated Solar Power (CSP)

Concentrated Solar Power (CSP)

Technology

The Fresnel collector is a line-focusing system which uses individually tracked reflector rows to concentrate direct solar radiation onto a stationary linear receiver. A pressurized water circuit at 16 bars is a cost-effective and efficient way to transfer process heat at temperatures of up to 200 °C. For higher temperatures, a thermal oil circuit is the appropriate technology.

 Applications

Industrial Solar collectors can provide process heat at temperatures of up to 400 °C in a power range from 100 kW to 10 MW.

The number of possible applications is nearly unlimited! 

 Technical Data

Type

linear concentrating Fresnel collector

Modular system

each module is 4 m long and 8 m wide with 11 primary mirror rows

Primary mirrors

toughened flat white glass mirrors

Mirror support structure

steel, aluminum

Primary mirror drive

individually driven mirror rows; each electric drive has a power consumption of 7 W and drives a 32 m long mirror row

Absorber tube

Schott PTR® 70

Secondary reflector

highly reflective aluminum

Steel structure

hot-dip galvanized and powder coated steel

Total collector height

4.5 m

Weight per m2 roof area covered

Approx. 28 kg/m2

Heat transfer circuit

Standard:

16 bar pressurized water up to  200°C (optional up to 40 bar and 250°C)

thermal oil circuit up to 400°C

direct steam generation
saturated steam up to 40 bar and 250°C

Thermal power range

100 kW to 10 MW

Optical Efficiency

62 %, based on DNI

Peak performance

500 W/m2


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