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DOE turns to private sector to build out spent nuclear fuel recycling
The Department of Energy on April 22 issued two requests for applications seeking proposals from private industry on kickstarting the reprocessing and recycling of spent nuclear fuel in the United States.
According to the DOE, the RFAs represent an unprecedented opportunity for the private sector to restore the nation’s nuclear leadership.
Noriyuki Unno, Kazuhisa Yuki, Jun Taniguchi, Shin-ichi Satake
Fusion Science and Technology | Volume 77 | Number 7 | October-November 2021 | Pages 716-720
Technical Paper | doi.org/10.1080/15361055.2021.1894080
Articles are hosted by Taylor and Francis Online.
Efficient heat transport and energy conversion are key factors for realizing a commercial fusion reactor. A promising method for enhancing heat transport performance and simplifying the transport system is thermosiphon. However, the maximum heat flux in the evaporation unit [namely, boiling heat transfer (BHT)] of the thermosiphon system should be improved to remove heat at high heat fluxes (>10 MW/m2). To improve BHT, we propose a new technique using a vibration material excited by boiling bubbles. In this study, we investigated the characteristics of BHT with and without the vibration material with pure water at atmospheric pressure to demonstrate our concept. We demonstrated that the vibration material enhances BHT when the vibration is synchronized with the frequency of boiling bubbles emitted from the heating surface.