2017
Arguably the first example of a working energy harvesting system, dating back to 1928, is Jean-Léon Reutter's Atmos clock, which uses fluctuations in atmospheric pressure, triggered by temperature, to power the clock. Prof. Dr. Peter Woias, Professor of Microsystems Design at the University of Freiburg, commented: "At the end of the day, if you go back 200 years, the energy sources we had were those that were available in the environment. That was essentially hydropower or wind power. Only with the use of fossil fuels did we start to use stored energy - and that's what we're still focusing on today. In other words, energy harvesting is a very old technology that we are now rediscovering. Moreover, we in Freiburg deliberately call it Micro Energy Harvesting."
After various experiments of nanogenerators, the focus of my work is on energy harvesting with the piezoelectric effect. Mechanical deformation of a piezocrystal as a result of a force applied by tension or compression generates charges that can be measured as an electric voltage at the electrodes of the piezoelectric element. This phenomenon is called direct piezoelectric effect. The goal is to develop objects and own life forms that deal with the ubiquitous existence of potential energy in our everyday life. Potential energy sources are everyday objects with their inherent vibrations. This existence is to be shown with self-developed objects in the form of visible, audible and tangible vibrations and a communication of the objects to each other is to be created. The energy accumulated over time will manifest itself after a known time in a sound and a light pulse. In this way, small "life-forms" are created that feed on energy self-sufficiently.
2019 Gesellschaft für zeitgenössische Kunst Osnabrück
MEH Micro Energy Harvesting
Technical Support
Martin Nawrath
Eduard Paal
Scholarship
E.ON Stiftung
Product Support
PI Ceramic GmbH
2017
Arguably the first example of a working energy harvesting system, dating back to 1928, is Jean-Léon Reutter's Atmos clock, which uses fluctuations in atmospheric pressure, triggered by temperature, to power the clock. Prof. Dr. Peter Woias, Professor of Microsystems Design at the University of Freiburg, commented: "At the end of the day, if you go back 200 years, the energy sources we had were those that were available in the environment. That was essentially hydropower or wind power. Only with the use of fossil fuels did we start to use stored energy - and that's what we're still focusing on today. In other words, energy harvesting is a very old technology that we are now rediscovering. Moreover, we in Freiburg deliberately call it Micro Energy Harvesting."
After various experiments of nanogenerators, the focus of my work is on energy harvesting with the piezoelectric effect. Mechanical deformation of a piezocrystal as a result of a force applied by tension or compression generates charges that can be measured as an electric voltage at the electrodes of the piezoelectric element. This phenomenon is called direct piezoelectric effect. The goal is to develop objects and own life forms that deal with the ubiquitous existence of potential energy in our everyday life. Potential energy sources are everyday objects with their inherent vibrations. This existence is to be shown with self-developed objects in the form of visible, audible and tangible vibrations and a communication of the objects to each other is to be created. The energy accumulated over time will manifest itself after a known time in a sound and a light pulse. In this way, small "life-forms" are created that feed on energy self-sufficiently.
2019 Gesellschaft für zeitgenössische Kunst Osnabrück
MEH Micro Energy Harvesting
Technical Support
Martin Nawrath
Eduard Paal
Scholarship
E.ON Stiftung
Product Support
PI Ceramic GmbH
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