Heat transfer characteristics of gas heated type steam reformer

Takeda, Tetsuaki; Ohashi, Hirofumi; Inagaki, Yoshiyuki

Nihon Kikai Gakkai 2003-Nendo Nenji Taikai Koen Rombunshu, Vol.3, p.17 - 18, 2003/08

A technology development of a hydrogen production system by a nuclear heat are being performed as a heat application system of a high-temperature gas cooled reactor in the Japan Atomic Energy Research Institute. The objective of this study is to clarify heat transfer characteristics of the steam reformer in the HTTR hydrogen production system. An experiment has been performed using a double coaxial vertical tube to obtain the heat transfer characteristics and to evaluate the effectiveness of heat transfer enhancement. The amount of produced hydrogen increases with increasing not only reaction rate of catalysis but also the heat transfer coefficient. It is necessary to take into account of heat transfer from both surfaces of the double coaxial tube in order to obtain the amount of transferred heat from the heated tube to the coolant gas.

Numerical analysis on thermal-hydraulics of ribbed fuel rods for HTGRs,I; A Case with 3 dimensional roughness on the outer surface

Takase, Kazuyuki; Akino, Norio

Kikai Gakkai Ibaraki Koenkai Koen Rombunshu, 0, p.125 - 126, 1995/00

no abstracts in English

Experimental and analytical studies on turbulent heat transfer performance of a fuel rod with spacer ribs for high temperature gas-cooled reactors

Takase, Kazuyuki

Nucl. Eng. Des., 154, p.345 - 356, 1995/00

https://doi.org/10.1016/0029-5493(94)00924-N

no abstracts in English

Heat transfer characteristics in narrow vertical rectangular channels heated from both sides

Sudo, Yukio; *; Kaminaga, Masanori

JSME Int. J., Ser. II, 33(4), p.743 - 748, 1990/00

no abstracts in English

Thermohydraulic Characteristics Analysis of Natural Convective Cooling Mode on the Steady State Condition of Upgraded JRR-3 Core,Using COOLOD-N

Kaminaga, Masanori; *; ; ; Sudo, Yukio

JAERI-M 87-055, 87 Pages, 1987/03

JAERI-M-87-055.pdf:1.67MB

no abstracts in English