高原铁路站房地板辐射系统的分区供暖效果  

Partition Heating Performance of Radiant Floor System in Railway Stations on Plateau

作　　者：郑嘉诚 余涛[1] 雷波[1] 陈辰 吕瑞欣 ZHENG Jiacheng;YU Tao;LEI Bo;CHEN Chen;LYU Ruixin(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China;Chengdu Architectural Design&Research Institute Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]成都市建筑设计研究院有限公司,四川成都610041

出　　处：《西南交通大学学报》2024年第1期62-69,共8页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金(51708453);四川省自然科学基金(2022NSFSC1944)。

摘　　要：为了解决高原铁路站房部分区域在强太阳辐射的影响下出现过热、地板辐射供暖系统能耗浪费的问题,以某高原铁路车站为研究对象,根据站房内太阳照射情况对地板辐射系统提出了分区供暖方案;利用建筑能耗模拟软件Energyplus对该铁路站房进行模拟分析,对比了地板辐射系统分区前后站房内的热环境和系统供暖量.结果表明:地板辐射系统采用统一的设计及运行控制方案供暖时,站房内太阳直射影响区的平均操作温度在日间最高可达27℃,与非直射影响区之间的温差超过5℃;在地板辐射系统分区供暖时,直射影响区的平均操作温度最高为26℃,室内温度分布更为均匀,局部过热现象得到缓解;在保证站房热舒适性的前提下,地板辐射系统的分区供暖方案能够使直射影响区整个供暖季的供暖量降低38.2%.In order to solve the local overheating and the energy waste of radiant floor heating systems in railway stations on the plateau with intensive solar radiation,a railway station on the plateau was studied,and a partition heating scheme of the radiant floor system was proposed according to the solar radiation distribution in the station.The building energy consumption simulation software,namely Energyplus was used to simulate the station,and both the indoor thermal environment and the heating capacity of the radiant floor system with or without the partition scheme were compared.Results show that when the radiant floor system adopts a unified design and operation control scheme for heating,the average operative temperature in the irradiated zone can reach up to 27℃during the daytime,and the temperature difference with the unirradiated zone is more than 5℃.When the radiant floor system uses the partition heating scheme,the maximum operative temperature in the irradiated zone is 26℃.The indoor temperature distribution is more uniform,and the local overheating is alleviated.Under the premise of ensuring the thermal comfort of the station,the partition heating scheme of the radiant floor system can reduce the heating capacity in the irradiated zone during the heating season by 38.2%.

关 键 词：铁路站房 太阳辐射 地板辐射供暖 室内热环境 系统供暖量 

分 类 号：TU832.1[建筑科学—供热、供燃气、通风及空调工程]