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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/904


    Title: 台灣核廢料地下處置場之熱傳導及熱應變分析;Analysis of heat conduction and heat strain in Taiwan deep geological disposal of spent nuclear fuels
    Authors: 吳育弘;Yu-Hung Wu
    Contributors: 土木工程研究所
    Keywords: 衰變熱;深層地質處置;等面積參數分析;熱間隙;fixed area;deep geological disposal;decay heat;air gap
    Date: 2004-06-24
    Issue Date: 2009-09-18 17:15:10 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 由於核廢料長期衰變熱會對我們的環境造成影響,各國未來核廢料的處理方式傾向以深層地質處置(deep geological disposal)法作為最終處置設施,本研究即在此概念下進行分析。 研究中採用台灣核能研究所,所規範的台灣核廢料地下掩埋處置場模型,以有限元素分析法,並配合對稱、體積單元等概念化簡模型。分析過程中,本研究主要針對處置場的兩種參數進行比較,一種是等面積參數分析法,同時改變長向與短向距離,以固定的面積尺寸,研究不同面積下處置場的最高溫度情形。另一種研究則是以文獻中(謝馨輝,2003)提到的熱間隙之熱傳導係數,以改變熱傳導係數值來觀察在不同位置上是否滿足SKB對處置孔之溫度設計規範,以此來進行安全性驗證。以上兩種分析,前者可以提供未來設計尺寸的參考數據,後者可以模擬地下處置設施的各個時期真實情形。 Due to the long-term decay heat of the nuclear waste material which will cause influence on our environment, all of the most countries tend to handle the nuclear waste material by the way of the deep geological disposal, which as the final treatment facilities with deep geology. This research is analysed under this concept promptly. In this article, I adopt the module conception from the nuclear energy research institute of Taiwan. Meanwhile, using the method of Finite Element, conception of symmetry, and represent volume unit to simplify the complicated modules. In the process of the analysis, I concentrate on two parameters as the main topics. One is the method of fixed area parameters. By changing the long direction size and short direction size but keep the same area at the same time, I could research the maximum temperature in the module. The other one is the method of the variety of the heat conductivity of the air gap. By changing it, I could find out that whether the maximum temperature in the certaion location satisfy the safty rules of SKB or not. The above-mentioned two kinds of analysis, the former could offer the reference data in designing the module size in the future , the latter could imitate the true situation of each periods of the underground treatment facilities .
    Appears in Collections:[土木工程研究所] 博碩士論文

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