検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Applicability of heat transfer enhancement method using porous material to nuclear hydrogen production system

多孔性材料を用いた伝熱促進法の核熱水素製造システムへの適用性

武田 哲明; 一宮 浩一*

Takeda, Tetsuaki; Ichimiya, Koichi*

日本原子力研究開発機構では高温ガス炉(HTGR)により得られる高温の熱を用いて、天然ガスの水蒸気改質法による水素製造システムの技術開発を進めてきた。高温ガス炉水素製造システムでは高温のヘリウムガスにより水蒸気改質器の反応管を加熱する。このシステムでは、水蒸気改質器の反応管外表面に直交フィンを設け、この反応管をガイド管内に挿入した環状流路構造を採用している。しかしながら、フィン付き反応管の製作性や加工に伴う構造強度の低下を考慮しなければならない。そこで、水蒸気改質器の流路構成を模擬した試験装置を用いて伝熱流動実験を行い、高空げき率多孔性材料を用いた伝熱促進法と水蒸気改質器への適用性を検討した。

As for the development of the coupling technology between the HTGR and the hydrogen production system, JAEA have carried out the hydrogen production test with the steam reforming process by natural gas. In the HTGR hydrogen production system, disk type fins are attached on the outside surface of the catalyst tube and the tube is inserted into the guide tube to increase an amount of transferred heat in the present design of the steam reformer. However, we have to take the deterioration of the structure strength by attaching the fins and processing the tube surface into consideration with the design of the steam reformer. The objectives of this study are to develop a method for heat transfer enhancement using a porous material and to discuss the applicability of this method into the steam reformer of the nuclear hydrogen production system. An experiment has been performed using the simulated apparatus of the steam reformer to obtain the heat transfer and fluid flow characteristics.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.