The pivoted collector shell tracks the sun to achieve a highly concentrated solar radiation in the parabolic shaped reflector. An Absorber Tube is installed in the focus line, which is converting the solar radiation into heat to evaporate the water inside the tube. The steam is either used directly or can be stored in a Heat Accumulator to provide steam 24 hours a day.
Each Parabolic Trough Collector has an aperture area of 120 to 180 mē, is 1.43 m wide and has a length of 96 to 144 m. The low specific weight permits roof-top installation to provide solar steam generation in densely built areas. The steam from the solar field can be used directly as process heat or for air-conditioning.
A solar field for solar assisted air-conditioning is installed since year 2000 in the United Arab Emirates. The Parabolic Trough Collector and the Absorber Tube has been further developed to achieve a higher performance.
The operating and maintenance costs are very low because the sun provides energy free of charge. The system will operate for many years due to the extended life expectancy of the components.
UV-protected glass fibre plastic
reflection enhanced aluminium mirror
toughened low-iron glazing
carbon steel, solar selective coated with transparent envelope
up to 32 bar(a), 237° C
30 to 50 t/year
We are offering accurate planning and simulation of the yearly solar performance to reduce the investment in the solar steam generator and to minimize the required backup.