Yoshitaka Ueki
Osaka University
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Publication
Featured researches published by Yoshitaka Ueki.
AIP Advances | 2017
Yoshitaka Ueki; Naoyuki Fujita; Masaya Kawai; Masahiko Shibahara
Nanoparticle dispersed fluids, nanofluids, have been widely investigated. However, thermal conductivity of molten salt-based nanofluid had never been measured and investigated yet. Since molten salts are high Prandtl number fluids, it is necessary to enhance heat transfer of the molten salts when they are employed as coolants. Therefore, in the present study we produced a molten salt-based nanofluid, and measured its thermal conductivity to demonstrate the molten salt-based nanofluid was able to enhance its own thermal conductivity. We employed Heat Transfer Salt (HTS: 40 wt% NaNO2, 7 wt% NaNO3, and 53 wt% KNO3) as a base fluid since it was a typical example of molten salts. We mixed HTS with silicon carbide nanoparticles, which was a molten salt-based nanofluid, and investigated change in thermal conductivity by mixing nanoparticle by means of transient hot-wire method. We found that, at a particle volume fraction of 0.72%, the effective thermal conductivity increased by 13% at 200oC. Compared with Wiene...
International Journal of Heat and Mass Transfer | 2017
Yoshitaka Ueki; Takashi Aoki; Kenta Ueda; Masahiko Shibahara
Transactions of the JSME (in Japanese) | 2018
Genki Uno; Kunio Fujiwara; Yoshitaka Ueki; Masahiko Shibahara
Journal of Nuclear Materials | 2018
Takashi Nozawa; Kazumi Ozawa; C. Park; Joon-Soo Park; Akira Kohyama; Akira Hasegawa; Shuhei Nogami; Tatsuya Hinoki; Sosuke Kondo; Toyohiko Yano; Tamaki Shibayama; B. Tsuchiya; Tatsuo Shikama; Shinji Nagata; Teruya Tanaka; H. Iwakiri; Yasushi Yamamoto; Satoshi Konishi; Ryuta Kasada; Masatoshi Kondo; Tomoaki Kunugi; Takehiko Yokomine; Yoshitaka Ueki; Nariaki Okubo; Tomitsugu Taguchi; Hiroyasu Tanigawa
International Journal of Heat and Mass Transfer | 2018
Yoshitaka Ueki; Kenta Ueda; Masahiko Shibahara
International Journal of Heat and Mass Transfer | 2018
Yoshitaka Ueki; Yasuhiro Miyazaki; Masahiko Shibahara; Taku Ohara
Fusion Engineering and Design | 2018
Yoshitaka Ueki; Naoyuki Fujita; Masaya Kawai; Masahiko Shibahara
The Proceedings of the Thermal Engineering Conference | 2016
Kenta Ueda; Yoshitaka Ueki; Takashi Aoki; Masahiko Shibahara
The Proceedings of the Thermal Engineering Conference | 2016
Hiroki Imori; Yoshitaka Ueki; Masahiko Shibahara
The Proceedings of Conference of Kansai Branch | 2016
Kenta Ueda; Yasuhiro Mishima; Yoshitaka Ueki; Masahiko Shibahara