Aalto-China collaboration resulted in a novel 2-stage dish solar concentrator
![Figure. Solar irradiance distribution at focal point of the new concentrator.](/sites/g/files/flghsv161/files/styles/o_288w_ah_n/public/midgard/images/1e6fe4d2f910740fe4d11e69c65d3c6356b1e241e24-ga_en_en.png?itok=WvosoEMy)
Here we propose a novel 2-stage dish concentrator system for concentrating solar power plants based on the so-called overlap method, which improves both the radial flux concentration ratio (b) and the intercept factor (g) of the concentrator. The 2-stage dish is composed of paraboloid primary and hyperboloid secondary mirrors having a special hollow structure enabling the mirrors to overlap, but avoiding excess shading. Geometric and optical analyses with ray-tracing show maximum values ofconcentration ratio15,498 and intercept factor 0.78. Also, the size of the focal spot could be reduced. The concept is applicable for solar tower concepts enabling more compact unit mirrors and reducing the receiver size. The results were recently presented in a journal article: Jun Wang , Song Yang , Chuan Jiang , Qianwen Yan , Peter D. Lund: A novel 2-stage dish concentrator with improved optical performance for concentrating solar power plants. Renewable Energyy 108 (2017) 92-97. http://dx.doi.org/10.1016/j.renene.2017.02.059
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DeployAI Partners Gather for Heart Beat Meeting in Helsinki
The European DeployAI project's partners gathered for the Heart Beat meeting hosted by Aalto University Executive Education in Helsinki.![Professori Maria Sammalkorpi](/sites/g/files/flghsv161/files/styles/2_3_288w_125h_d/public/2024-07/Aalto_University_Maria_Sammalkorpi_10-6-2024_photo_by_Mikko_Raskinen_002.jpg?h=3c516e57&itok=akEFnUgM)
Get to know us: Associate Professor Maria Sammalkorpi
Sammalkorpi received her doctorate from Helsinki University of Technology 2004. After her defence, she has worked as a researcher at the Universities of Princeton, Yale and Aalto.![AI applications](/sites/g/files/flghsv161/files/styles/2_3_288w_125h_d/public/2022-11/Ai_applications_illustration_Matti_Ahlgren.png?h=5cf565ba&itok=EjV6w68S)
Aalto computer scientists in ICML 2024
Computer scientists in ICML 2024![bakteereja ohjataan magneettikentän avulla](/sites/g/files/flghsv161/files/styles/2_3_288w_125h_d/public/2024-07/bakteerit.png?h=9eadbaff&itok=i5Vm1LSf)