Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Kazuhisa YUKI"'
Publikováno v:
Journal of Thermal Science and Technology, Vol 16, Iss 2, Pp JTST0017-JTST0017 (2021)
For boiling heat transfer, it is important to improve both the critical heat flux and heat transfer coefficient. In general, the heat transfer coefficient is improved by promoting the nucleation of boiling bubbles on the heating surface. However, thi
Externí odkaz:
https://doaj.org/article/006bc63a10794abc9889229b450ce656
Autor:
Kazuhisa YUKI, Risako KIBUSHI, Rikako TSUJI, Kio TAKAI, Noriyuki UNNO, Tetsuro OGUSHI, Masaaki MURAKAMI, Tomiyuki NUMATA, Hikaru NOMURA, Takuya IDE
Publikováno v:
Journal of Thermal Science and Technology, Vol 15, Iss 1, Pp JTST0012-JTST0012 (2020)
In this study, we quantitatively discuss several kinds of thermal resistances that rise up to the surface in thermal management of automotive SiC-based on-board inverters with extremely high heat flux of 500 W/cm2. It is proven that a stacking struct
Externí odkaz:
https://doaj.org/article/6c146b4b0f404b1ea6e5b539e2295a29
Publikováno v:
Journal of Thermal Science and Technology, Vol 15, Iss 1, Pp JTST0007-JTST0007 (2020)
Owing to their large surface area and capillary effect, porous materials are highly desired for heat-transfer applications. In this study, we investigated the evaporation behavior of a water droplet on porous epoxy resin with a three-dimensional netw
Externí odkaz:
https://doaj.org/article/c07cf540e0ed47e78f42b5c8ffa19e64
Autor:
Kazuhisa Yuki, Risako Kibushi, Ryohei Kubota, Noriyuki Unno, Shigeru Tanaka, Kazuyuki Hokamoto
Publikováno v:
Energies, Vol 15, Iss 3, p 1042 (2022)
To discuss a suitable porous structure for helium gas cooling under high heat flux conditions of a nuclear fusion divertor, we first evaluate effective thermal conductivity of sintered copper-particles in a simple cubic lattice by direct numerical he
Externí odkaz:
https://doaj.org/article/e623e7580aac41e68403f37b0f5bfa10
Publikováno v:
Fluids, Vol 6, Iss 12, p 443 (2021)
We developed a boiling bubble resonator (BBR) as a new heat transfer enhancement method aided by boiling bubbles. The BBR is a passive device that operates under its own bubble pressure and therefore does not require an electrical source. In the pres
Externí odkaz:
https://doaj.org/article/df0593e7503d4a1cbf668b2de3565e20
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 824, Pp 14-00513-14-00513 (2015)
Droplet behavior on a nanoparticles-assembled bi-porous layer foamed onto a heating surface is evaluated in order to evaluate whether the layer works as a boiling heat transfer promoter. The nanoparticles layer foamed by a boiling adhesion method is
Externí odkaz:
https://doaj.org/article/6491861bd70d4c3a8ad1a6a9a667c920
Publikováno v:
2023 International Conference on Electronics Packaging (ICEP).
Autor:
Junichiro Ono, Yuta Aoki, Noriyuki Unno, Kazuhisa Yuki, Koichi Suzuki, Yoshitaka Ueki, Shin-ichi Satake
Publikováno v:
International Journal of Multiphase Flow. 166:104512
Publikováno v:
Journal of Electronic Packaging. 145
Boiling heat transfer (BHT) is a promising technique for cooling the high heat flux emitted from next-generation electronic devices. However, critical heat flux (CHF) is a significant problem in BHT because it restricts the maximum performance of coo
Publikováno v:
Fusion Science and Technology. 77:716-720
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 s...