| 用估算热收支的方法评价热棒制冷效果 |
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| 引用本文： | 武俊杰,马巍,孙志忠,温智.用估算热收支的方法评价热棒制冷效果[J].冰川冻土,2010,32(1). |
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| 作者姓名： | 武俊杰 马巍 孙志忠 温智 |
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| 作者单位： | 中国科学院,寒区旱区环境与工程研究所,冻土工程国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 中国科学院西部行动计划(二期)项目(KZCX2-XB2-10);;国家自然科学基金创新群体项目(40821001)资助 |
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| 摘 要： | 利用青藏铁路路基地质钻孔资料和地温资料,通过计算随地温变化的热收支、来自近地表的热量、来自深部的热量、以及冻土上限变化引起的相变热,来估算测温孔在水平方向的热收支.通过对比热棒路基、普通路基的右路肩孔以及天然孔水平热收支的差异,来描述热棒的工作效果.之后,对比了热棒路基左路肩孔(阳坡)和右路肩孔(阴坡)水平热收支的差异,并给出解释.最后,以热棒路基右路肩孔水平热收支为基础估算了整个路基的水平热收支,进而给出了单个热棒的平均"产冷量".
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| 关 键 词： | 冻土 热棒 热收支 产冷量 |
Evaluating Cooling Effect of Two-Phase Closed Thermosyphon by Estimated Heat Budget |
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| WU Jun-jie,MA Wei,SUN Zhi-zhong,WEN Zhi.Evaluating Cooling Effect of Two-Phase Closed Thermosyphon by Estimated Heat Budget[J].Journal of Glaciology and Geocryology,2010,32(1). |
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| Authors: | WU Jun-jie MA Wei SUN Zhi-zhong WEN Zhi |
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| Institution: | State Key Laboratory of Frozen Soil Engineering;CAREERI;CAS;Lanzhou Gansu 730000;China |
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| Abstract: | Cooling effect of the two-phase closed thermosyphon(heat pipe)is always represented by ground temperature decreasing in embankment,lifting up of permafrost table,and freezing period elongating.Effective radius of the thermosyphon and "generated cold amount" in cold seasons are the main index for further quantifying the effect.Unfortunately,owing to no thermal probe binding down the external wall of the thermosyphon,it is of great difficulty in getting quantified effect in Beiluhe thermosyphon embankment.In ... |
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| Keywords: | permafrost two-phase closed thermosphon heat budget "generated cold amount" |
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