کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7048361 | 1457130 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cooling performance of two-phase closed thermosyphons installed at a highway embankment in permafrost regions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cooling performance of two-phase closed thermosyphons installed at a highway embankment in permafrost regions Cooling performance of two-phase closed thermosyphons installed at a highway embankment in permafrost regions](/preview/png/7048361.png)
چکیده انگلیسی
Two-phase closed thermosyphon (TPCT) is a popular way to prevent permafrost layers from degrading, and consequently ensure the stabilities of engineering constructions in permafrost regions. Although TPCTs have been numerically and experimentally investigated for many years, long-term field monitored data concerning the cooling performance of TPCTs are limited. This paper presents the ground temperatures, embankment deformations and some related meteorological factors for a road section of the Qinghai-Tibet Highway before and after installing the TPCTs in permafrost regions. Based on the monitored data, three main aspects are analyzed: 1) cooling scope and period of the TPCTs; 2) cooling effects for the soil layers, especially for the permafrost layers; and 3) remedying effects with respect to embankment deformation and crack formation. Some corresponding suggestions are proposed for a better design of TPCTs in the construction of roadways in permafrost regions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 98, 5 April 2016, Pages 220-227
Journal: Applied Thermal Engineering - Volume 98, 5 April 2016, Pages 220-227
نویسندگان
Fan Yu, Jilin Qi, Mingyi Zhang, Yuanming Lai, Xiaoliang Yao, Yongzhi Liu, Guilong Wu,