Armin Buchroithner

Graz University of Technology


Armin Buchroithner received his M.Sc. degree in automotive engineering at the Graz University Technology, Austria, in 2011. He wrote his master’s thesis on hybrid vehicles with mechanical energy storage, which he received the Johann Puch Award for Excellence for. From 2010 until 2016, he worked at the Institute for Machine Elements and Methods of Development in research and teaching. He was a guest lecturer at the Universitá Politecnica de Valencia in Spain on sustainable mobility. In 2014 and 2015, he worked for NASA Jet Propulsion Laboratory in California on a government-funded solar power project. In 2017 he received his Ph.D. in Mechanical Engineering with distinction, and his theses were awarded the Austrian TÜV Science Award and the Association of German Engineers Award. Apart from many scientific publications, he is the single author of a Springer book entitled Flywheel Energy Storage in Automotive Engineering. He is now a project scientist at the Institute of Electrical Measurement and Sensor Systems and has recently completed a research stay at the Center for Energy Research (University of California, San Diego).


Highly Efficient Solar Co-Generation in Parabolic Trough Collectors Using Hybrid Absorber Technologies: Potentials and Challenges
Parabolic trough collectors (PTCs) play an important role in concentrated solar power (CSP) as they provide economic heat up to 400°C and above, which can be used for industrial processes or electricity generation. In recent years, several PTCs incorporating absorber tubes equipped with concentrator photovoltaics (CPV) have emerged, resulting in highly efficient hybrid (CPV-T) absorbers providing both, process heat and electricity. This talk discusses not only the general market potential of this technology, but also concrete technological approaches, which have led to overall average system efficiencies of 75.5% (26.8% electrical + 48.8% thermal) While even higher efficiencies seem possible in the near future by deploying more advanced optical components and cells as well as highly accurate tracking systems, low-cost designs based on large-batch manufacturing methods inspired by the automotive industry might revolutionize the market. By comparing challenges and potentials, it can clearly be seen that the proposed technology can contribute significantly to a more rapid transition to renewable energy supply, which is of absolute importance given the global political, economic and climate-related events in recent years. The conclusions and approaches presented in this presentation are also backed by findings research projects conducted by the authors.

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