Bernhard Müller was Manager of Research and Development for Mueller Solartechnik in Offenheim, Germany. He is the inventor of the Pil Kaar, Kundu Kaar, Zèbre and Mata Hari solar cookers and modified the Primrose of Roger Bernard. Bernhard is a founding member of the Solar Cookers International Network, a member of American Society of Agricultural and Biological Engineers (ASABE), a member of International Solar Energy Society (ISES), and supporting member of EG-Solar e.V.
The solar cooker production ended in 2012 (retirement). As per November 2012 Bernhard Müller limits his activities to consulting, independent solar cookers tests and publication of information on solar cooking.
Recent news and developments
- April 2014: Bernie Müller describes his latest approach for measuring the aperture openings, or solar collection area, for solar cookers here: Explanations of the Aperture Area - Bernhard Müller
- September 2013: Bernie Müller invented the Jar-in-Jar heat trap and gave some of them to NGOs in Kenya. Learn more about this in the Wiki-rubrics Glazing and Solar cooking pots.
- December 2012: Bernie Müller has published findings based on his experimentation with a twin Fresnel lens solar cooker. This cooker was never meant to be a production prototype, and his company, Mueller Solartechnik, no longer manufactures solar cookers. As an engineering exercise, he has shown that incorporating the Fresnel lens produces quite high temperatures(278.6°C/534°F). However, the usable cooking area is small.
- April 2014: The Water Boiling Test for Solar Cookers – WBT SC - Bernie Mueller & Faustine Odaba
- Die Parabel, Brochure (German), 36 pages, ISBN 978-3-8442-4131-0, epubli GmbH, Berlin
- Das Solarkocher-Handbuch, 240 pages, ISBN 978-3-8442-4471-7, epubli GmbH, Berlin