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