东南大学学报（自然科学版）2009，Vol.39Issue(5)：967-972,6.DOI:10.3969/j.issn.1001-0505.2009.05.020
青藏铁路低温热管应用的能量基础条件
Fundamental energy conditions of the application of low-temperature heat pipe in Qinghai-Tibet railway
郭宏新 1原思成 2张鲁新3
作者信息
- 1. 中国科学院寒区旱区环境与工程研究所,兰州,730000
- 2. 江苏中圣高科技产业公司,南京,211112
- 3. 北京交通大学土木建筑工程学院,北京,100044
- 折叠
摘要
Abstract
Low-temperature heat pipe is widely applied for stabilizing the permafrost foundation of Qinghai-Tibet railway. The mechanism and fundamental conditions of its application are analyzed. A field test of cooling effect of heat pipe was conducted to study the energy conditions of typical cold region and structural characteristics of heat pipe. A numerical simulation by finite element method with the actually measured boundary conditions is carried out to predict the thirty years long term cooling of heat pipe in permafrost foundation. All results show that the heat pipe lowers the soil temperature effectively at the beginning and can keep lowering the temperature continuously in a long period. Thus the conclusion can be drawn that the fundamental energy conditions of the application of low-temperature heat pipe in permafrost region would not change severely under the background of global climate warming-up, and the heat pipe will be able to keep working during all its life of thirty years, ensuring the stability of the permafrost foundation.关键词
青藏铁路/低温热管/多年冻土/数值计算Key words
Qinghai-Tibet railway/ low-temperature heat pipe/ permafrost/ numerical calculation分类
能源科技引用本文复制引用
郭宏新,原思成,张鲁新..青藏铁路低温热管应用的能量基础条件[J].东南大学学报（自然科学版）,2009,39(5):967-972,6.
