Potential of thermosyphon for passive cooling of nuclear fuel storage vault

IF 4.9 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2024-10-23 DOI:10.1016/j.ijthermalsci.2024.109477

Vivek K. Mishra , Saroj K. Panda , Biswanath Sen , Dipti Samantaray , M.P. Maiya

引用次数: 0

Abstract

This study evaluates the potential of thermosyphon for passive cooling of nuclear fuel storage vaults. For this work, a thermosyphon was specifically designed and manufactured. Experiments were conducted by varying heat load (300–600 W) and filling ratio (40–120 %). Optimal performance was obtained with a 60 % filling ratio. The experimental data obtained with the optimal filling ratio were used to calculate the effective thermal conductivity of thermosyphon and determine the number of thermosyphons needed for the vault. Two geometric vault ventilation models; one featuring a thermosyphon and the other without these were developed. The operations of these vault ventilation systems were simulated using the CFD model. The airflow patterns and temperature distributions within the storage vault were compared. The findings ascertain the utility of thermosyphons as an effective passive cooling device in the nuclear fuel storage vault.

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用于核燃料贮存库被动冷却的热吸器的潜力

本研究评估了热泵用于核燃料储存库被动冷却的潜力。为此，专门设计并制造了一个热泵。通过改变热负荷（300-600 W）和填充率（40-120 %）进行了实验。填充率为 60% 时性能最佳。使用最佳填充率获得的实验数据可用于计算热传导器的有效热传导率，并确定拱顶所需的热传导器数量。我们开发了两种几何拱顶通风模型，一种具有热对称虹吸器，另一种没有。使用 CFD 模型模拟了这些拱顶通风系统的运行情况。对储藏库内的气流模式和温度分布进行了比较。研究结果表明，热像仪是核燃料贮存库中一种有效的被动冷却装置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.