English: Thermogravitational cycle experiment performed by Elsa Giraudat and Jean Baptiste Hubert (while undergraduate students at the Lycée Hoche, Versailles, France) for their personal project in physics. The fluid was perfluoropentane (C5F12) in their case, and the cold source was made by ice blocks floating on the water column. Numerical integration of the electromotive force gave a harvested energy of 192 µJ per cycle.
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