How much maximum temperature can be achieved by solar reflector, solar refractor and by the combination of both?
Paul Scherrer Institute (PSI) in Switzerland developed a solar-concentrators kiln for calcination of calcium carbonate (CaCO3) which can reach temperatures above 1000 degrees Celsius. Hence, the answer to your question is definitely 'yes' that these temperature can be easily achieved from solar concentrators.
Professor Yehia Khalil, Yale University, USA
Fellow of the University of Oxford, UK
Concerning to the 350―400 ºC temperature range, you may want to see: Jan F. Kreider, "Medium and High Temperature Solar Processes", Academic Press, New York / London, 1979, Ch. 6; http://www.sciencedirect.com/science/book/9780124259805
Yes as Prof Khalil points out very high temperatures have been achieved but maintaining those temperatures for a continuous operation that only shuts down for maintenance once every 4 or 5 years like a H2 plant would likely be problematic.
Dear colleague,
The answer is "YES". We can reach 1000°C using solar energy. The technology used for this purpose is relatively expensive. I recommend the answer of Professor Khalil.
Best regards!
Dr. Adel OUESLATI
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