中国铁道科学2017，Vol.38Issue(6)：1-8,8.DOI:10.3969/j.issn.1001-4632.2017.06.01
太阳能制冷与热管制冷的多年冻土地基热稳定维护效果对比
Comparison between Effects of Solar Refrigeration and Heat Pipe Refrigeration on Thermal Stability Maintenance in Permafrost Foundation
摘要
Abstract
At the permafrost test field on Fenghuoshan of Qinghai-Tibetan Plateau,comparative experiments were conducted to study the effects of solar refrigeration device and heat pipe refrigeration device on maintaining the thermal stability of permafrost foundation.Results show that under the same experimental conditions,solar refrigeration device has stronger working and refrigeration performances.With the rich sunlight in permafrost region as heat source power,the solar refrigeration device can work full time in all seasons.Especially in warm season,it can effectively prevent permafrost foundation from the thermal erosion of ambient temperature.The reduction in the annual mean ground temperature of solar refrigeration device is 0.57～0.96 ℃ greater than that of heat pipe refrigeration device,its cooling influence radius is 0.13 ～0.87 m larger,and its actual refrigerating capacity is 1.97 times as much as that of heat pipe refrigeration device.关键词
多年冻土/冻土地基/热稳定性/太阳能制冷/热管制冷/制冷影响半径/制冷量Key words
Permafrost/Permafrost foundation/Thermal stability/Solar refrigeration/Heat pipe refrigeration/Influence radius of refrigeration/Refrigerating capacity分类
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米维军,赵永虎,杨晓明,屈耀辉,武小鹏..太阳能制冷与热管制冷的多年冻土地基热稳定维护效果对比[J].中国铁道科学,2017,38(6):1-8,8.基金项目
中国中铁股份有限公司科技开发计划项目(2013-重大-25) （2013-重大-25）
