Heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel

Yao Hung Wang; Kuo Cheng Yen; Heui Yung Chang; Chi Ming Lai

doi:10.1016/j.nucengdes.2021.111183

Heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel

Yao Hung Wang, Kuo Cheng Yen, Heui Yung Chang, Chi Ming Lai

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Computational fluid dynamics (CFD) was used in this study to numerically simulate the heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel. The parameters included a Grashof number of 1.0x10¹¹, an approaching wind incidence angle of 0° or 45°, and a Reynolds number (Re) of 2.7×10⁴-8.0×10⁵ (Gr/Re²=0.15-137). As shown by the results, the buoyant airflow dominated the heat removal capability of the cask at low Re (2.7×10⁴). When the Re was increased to 5.3×10⁴-1.3×10⁵, the wind-induced channel airflow compromised the buoyant airflow, thus reducing the heat removal capacity of the cask. When the Re was⩾2.7×10⁵, the wind-induced airflow dominated.

Original language	English
Article number	111183
Journal	Nuclear Engineering and Design
Volume	378
DOIs	https://doi.org/10.1016/j.nucengdes.2021.111183
Publication status	Published - 2021 Jul

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Safety, Risk, Reliability and Quality
Waste Management and Disposal
Mechanical Engineering

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10.1016/j.nucengdes.2021.111183

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title = "Heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel",

abstract = "Computational fluid dynamics (CFD) was used in this study to numerically simulate the heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel. The parameters included a Grashof number of 1.0x1011, an approaching wind incidence angle of 0° or 45°, and a Reynolds number (Re) of 2.7×104-8.0×105 (Gr/Re2=0.15-137). As shown by the results, the buoyant airflow dominated the heat removal capability of the cask at low Re (2.7×104). When the Re was increased to 5.3×104-1.3×105, the wind-induced channel airflow compromised the buoyant airflow, thus reducing the heat removal capacity of the cask. When the Re was⩾2.7×105, the wind-induced airflow dominated.",

author = "Wang, {Yao Hung} and Yen, {Kuo Cheng} and Chang, {Heui Yung} and Lai, {Chi Ming}",

note = "Funding Information: Support from the Atomic Energy Council, Taiwan, R.O.C through grant no. 109FCMA002 in this study is gratefully acknowledged. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = jul,

doi = "10.1016/j.nucengdes.2021.111183",

language = "English",

volume = "378",

journal = "Nuclear Engineering and Design",

issn = "0029-5493",

publisher = "Elsevier BV",

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T1 - Heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel

AU - Wang, Yao Hung

AU - Yen, Kuo Cheng

AU - Chang, Heui Yung

AU - Lai, Chi Ming

PY - 2021/7

Y1 - 2021/7

N2 - Computational fluid dynamics (CFD) was used in this study to numerically simulate the heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel. The parameters included a Grashof number of 1.0x1011, an approaching wind incidence angle of 0° or 45°, and a Reynolds number (Re) of 2.7×104-8.0×105 (Gr/Re2=0.15-137). As shown by the results, the buoyant airflow dominated the heat removal capability of the cask at low Re (2.7×104). When the Re was increased to 5.3×104-1.3×105, the wind-induced channel airflow compromised the buoyant airflow, thus reducing the heat removal capacity of the cask. When the Re was⩾2.7×105, the wind-induced airflow dominated.

AB - Computational fluid dynamics (CFD) was used in this study to numerically simulate the heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel. The parameters included a Grashof number of 1.0x1011, an approaching wind incidence angle of 0° or 45°, and a Reynolds number (Re) of 2.7×104-8.0×105 (Gr/Re2=0.15-137). As shown by the results, the buoyant airflow dominated the heat removal capability of the cask at low Re (2.7×104). When the Re was increased to 5.3×104-1.3×105, the wind-induced channel airflow compromised the buoyant airflow, thus reducing the heat removal capacity of the cask. When the Re was⩾2.7×105, the wind-induced airflow dominated.

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Heat removal and hybrid ventilation characteristics of a vertical dry storage cask for spent nuclear fuel

Abstract

All Science Journal Classification (ASJC) codes

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