DLRRI-022

Sopran

Parabolic Receiver · 1998

40–200 °CNominal output temperature
Up to 20 bar, adapted to testNominal output pressure
40 kWNominal power on target

About this facility

Sopran is a test stand for solar process heat applications, used to measure the efficiency of line-focusing solar collectors at temperatures up to 200 °C according to EN 12975. The installation also supports investigations of solar cooling and direct steam generation for process heat.

Sectors and technologies

Test of line focussing collectors

Technical specifications

16 parameters
Facility typeParabolic Receiver
Year of construction1998
Total number of collectors6 IST modules
Collector modelIST PT-1
Collector length/width6 × 2.3 m / 12 × 4.6 m
Collector orientationEast–West
Receiver manufacturerIST
Working fluidWater or direct steam generation
Nominal output temperature40–200 °C
Nominal output pressureUp to 20 bar, adapted to test
Nominal power on target40 kW
Total reflective area83 m²
Clean reflectivity93%
Maximum sun concentration46 (related to diameter)
Power conversion systemNo
Thermal energy storageNo

Available services

  • Parabolic Trough Collector’s Characterization

Contact & links

Dirk Krüger, dirk.krueger@dlr.de