Presentation Information
[1F05]Experimental study of Crookes Radiometer with uniform-temperature vanes
*Yuma Takami1,2,3, Hiroshi Sugimoto1,2,3 (1. Kyoto University, 2. Graduate School of Engineering, 3. Department of Aeronautics and Astronautics)
We experimentally investigated a "radiometric force" generated by differences in accommodation coefficients. The radiometric force, known as the driving force of the well-known Crookes radiometer, is usually thought to result from temperature differences between the black and white surfaces of the mica vane. Our thin glass vane does not induce such a temperature difference because it is too thin. Instead, we painted only one side of the glass vanes black, which results in a difference in the accommodation coefficient. When illuminated, our uniform-temperature radiometer rotated. We also reported the effects of pressure and container size on rotation speed.