Effect of hydrated salt additives on film boiling behavior at vapor film collapse

Takahiro Arai*, Masahiro Furuya

*この研究の対応する著者

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A high-temperature stainless-steel sphere was immersed into various salt solutions to test film boiling behavior at vapor film collapse. The film boiling behavior around the sphere was observed with a high-speed digital-video camera. Because salt additives enhanced condensation heat transfer, the observed vapor film was thinner. Surface temperature of the sphere was measured. Salt additives increased the quenching (vapor film collapse) temperature, because frequency of direct contact between sphere surface and coolant increased. Quenching temperature rises with increased salt concentration. The quenching temperature, however, approaches a constant value when the slat concentration is close to its saturation concentration. The quenching temperature is well correlated with ion molar concentration, which is a number density of ions, regardless of the type of hydrated salts.

本文言語English
ホスト出版物のタイトル2008 Proceedings of the 16th International Conference on Nuclear Engineering, ICONE16
ページ323-332
ページ数10
DOI
出版ステータスPublished - 2008 12月 1
外部発表はい
イベント16th International Conference on Nuclear Engineering, ICONE16 2008 - Orlando, FL, United States
継続期間: 2008 5月 112008 5月 15

出版物シリーズ

名前International Conference on Nuclear Engineering, Proceedings, ICONE
3

Conference

Conference16th International Conference on Nuclear Engineering, ICONE16 2008
国/地域United States
CityOrlando, FL
Period08/5/1108/5/15

ASJC Scopus subject areas

  • 原子力エネルギーおよび原子力工学

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