A Characteristic Study of the Thermal Conduction between Excavated Holes with Heatin Rocks
碩士 === 國立高雄第一科技大學 === 營建工程所 === 92 === ABSTRACT The main purpose of this research is to capture the temperature change of heated excavated holes around heat source. The temperature change may arise some physical and/or chemical actions then cause the rock around the hole cracks or collapses. This r...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/57763619537744140059 |
| Summary: | 碩士 === 國立高雄第一科技大學 === 營建工程所 === 92 === ABSTRACT
The main purpose of this research is to capture the temperature change of heated excavated holes around heat source. The temperature change may arise some physical and/or chemical actions then cause the rock around the hole cracks or collapses. This research analyzes the heat conduction problems of two-excavated holes which is a most probable disposal method of nuclear waste in the future. Due to the production of heat from nuclear decay, the temperature of buffer material and rock around disposal holes would be greatly increased. Therefore, this research accomplish the prediction of the temperature change with different material parameters in the field using numerical analysis method. This research employed the FTS and FTT programs originally developed by Dr. Chihsen T. Lin for the steady and transient analyses of the disposal holes.
This research adopted the design standard of Swedish KBS-3. The property of materials used in this research is obtained from the test results of Energy and Resource Laboratories (ERL) of Industrial Technology Research Institute (ITRI) in Taiwan. The analytical results show that the heat conduction coefficient of rocks around disposal holes is a major factor that has great influence on the temperature of buffer and rock temperatures and the safe distance between disposal holes in view of acceptable temperature.
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