High flux solar simulator for testing materials, solar concentrators, receivers, PV modules and daylighting devices
A Spanish Research Centre working on solar energy systems offers its High flux solar simulator to conduct research on synthesis and surface treatment of new materials. High-flux solar simulators are designed to recreate the high radiation intensity distribution usually met in concentrating solar systems. The researchers are looking for commercial agreement with technical assistance and research cooperation agreement.
The center is looking for commercial agreement with technical assistance; the partner sought should be active in developing new markets for solar fuels, daylighting, concentrating photovoltaics and concentrating solar power materials and components. The institute is also looking for research cooperation agreements with other research centers and companies to foster the technology basis of their research.
High temperature solar thermal and thermochemical technologies require concentrated sunlight to achieve temperatures in the range of 300–2000ºC to produce fuels, commodities, and electricity while high-concentration photovoltaic systems operate above 100 kW/m2 of irradiance. High solar flux is also required to conduct research on synthesis and surface treatment of new materials. High-flux solar simulators are designed to recreate the high radiation intensity distribution usually met in concentrating solar systems. Compared with real solar concentrators, the high-flux solar simulators provide controlled conditions and allow conducting high-temperature thermal and thermochemical research without perturbations due to solar resource intermittency. The Spanish research institute, working on sustainable energies including solar energy systems, has built a new 42 kWe high-flux solar simulator used for high-temperature solar thermal and thermochemical research. The elliptical reflector can provide a highly efficient transfer of radiation with radiation source located at the first focus and the target located at the second focus of the reflector. Thus, the ellipsoidal mirror is usually used to reflect and concentrate the light rays for the high-flux solar simulator. The solar simulator with a big single ellipsoidal mirror is difficult to be fabricated and has limitations to adjust the source power output and distribution. The simulator with multi truncated ellipsoidal reflectors is flexible to adjust. In this facility, an array of seven lamp-reflector modules can be adopted. MARKET APPLICATION •Testing materials performance at high flux/high temperatures. •Testing solar reactors and receivers up to 14kW incident solar power. •Research on solar driven hydrogen production by thermochemical cycles. •Solar fuels and chemicals production. •Testing concentrating PV compact modules. •Testing advanced thermal fluids for heat transfer and thermal storage. •Testing daylighting devices for high flux collectors. •Synthesis and surface modification of materials. They are looking for commercial agreement with technical assistance for companies that want to test or validated their developments in the solar simulator and also research cooperation agreement could be studied for further developments or for participation in European research projects.
Advantages and innovations
The alignment of seven lamps of the high-flux solar simulator can be adjusted in order to use different pointing strategies. The flux distribution is axisymmetric with 3,600 kW/m2 of peak flux and a circular area of 20-mm-diameter in which the flux exceeds 3,000 kW/m2. The power density within a focal area with diameter of 30 mm is about 2,700 kW/m2, and the cumulative power is about 2,000 W. For the diameter of 60 mm, the cumulative power is 5,300 W, and the power density is about 1,860 kW/m2, which correspond to stagnation temperature achieving 2,400 K. Within the focal area of 200-mm-diameter, the cumulative power can reach 14,000 W.
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