[1]韩 娅,王登甲,周 勇,等.平板型太阳能集热器热损失随海拔高度变化规律研究[J].西安建筑科技大学学报(自然科学版),2021,(05):773-780.[doi:10.15986/j.1006-7930.2021.05.021 ]
 HAN Ya,WANG Dengjia,ZHOU Yong,et al.Study on heat loss of flat plate solar collector varying with altitude[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2021,(05):773-780.[doi:10.15986/j.1006-7930.2021.05.021 ]
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平板型太阳能集热器热损失随海拔高度变化规律研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
期数:
2021年05期
页码:
773-780
栏目:
出版日期:
2021-10-25

文章信息/Info

Title:
Study on heat loss of flat plate solar collector varying with altitude
文章编号:
1006-7930(2021)05-0773-08
作者:
韩 娅1王登甲12周 勇23刘艳峰12张昕宇4樊博浩1
(1.西安建筑科技大学 建筑设备科学与工程学院,陕西 西安 710055; 2.西安建筑科技大学 西部绿色建筑国家重点实验室,陕西 西安 710055; 3.西安建筑科技大学 管理学院,陕西 西安 710055; 4.中国建筑科学研究院有限公司,北京 100013)
Author(s):
HAN Ya1WANG Dengjia12ZHOU Yong23LIU Yanfeng12ZHANG Xinyu4FAN Bohao1
(1.School of Building Services Science and Engineering,Xi'an Univ. of Arch. & Tech.,Xi'an 710055,China; 2.State Key Laboratory of Green Building in Western China,Xi'an Univ. of Arch. & Tech.,Xi'an 710055,China; 3.School of Management,Xi'an Univ. of Arch. & Tech.,Xi'an 710055,China; 4.China Academy of Building Research,Beijing 100013,China)
关键词:
海拔 太阳能 平板集热器 热损失 修正
Keywords:
altitude solar energy flat plate collector heat loss correction
分类号:
TU83
DOI:
10.15986/j.1006-7930.2021.05.021
文献标志码:
A
摘要:
受到高原地区气压低、空气密度小、大气透明度高等特殊环境影响,平板太阳能集热器表面对流和辐射热损失发生一定变化,这对集热器在高原地区的实际应用产生一定影响.该研究通过对平板太阳能集热器传热过程进行分析,考虑不同海拔高度下对流及辐射换热机制,选取了位于不同海拔的典型城市,对平板太阳能集热器的对流、辐射和总热损失进行数值模拟分析.结果表明:随海拔高度升高,平板集热器的对流热损失系数减小,辐射热损失系数增大; 而由于对流和辐射热损失系数的变化程度不同,总热损失系数随海拔高度先减小而后增大,最大变化约在10%.研究为不同海拔高度平板集热器热利用提供计算依据.
Abstract:
Due to the special environmental impacts of low air pressure, low air density and high atmospheric transparency in plateau area, the convective and radiative heat loss of flat plate solar collectors change to some extent, which has a certain impact on the practical application of collectors in plateau area. In this study, by analyzing the heat transfer process of flat plate solar collector and considering the convective and radiative heat transfer mechanism at different altitudes, typical cities at different altitudes are selected to simulate the convective, radiative and total heat loss of flat panel solar collector. The results show that with the increase of altitude, the convective heat loss coefficient of the flat plate collector decreases, and the radiation heat loss coefficient increases. However, due to the different variation degrees of convection and radiation heat loss coefficients, the total heat loss coefficient decreases first and then increases with the altitude, and the maximum change is about 10%. The study provides calculation basis for heat utilization of flat plate collectors at different altitudes.

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备注/Memo

备注/Memo:
收稿日期:2021-04-06修改稿日期:2021-09-26
基金项目:国家自然科学基金项目(52078408); 陕西省杰出青年基金项目(2020JC-43)
第一作者:韩娅(1996-),女,硕士研究生,研究方向:可再生能源利用与建筑节能技术. E-mail:1028868444@qq.com
通信作者:王登甲(1984-),男,博士,教授,主要从事建筑节能与太阳能供暖空调技术研究. E-mail:wangdengjia@xauat.edu.cn
更新日期/Last Update: 2021-10-25