间歇供暖在散热器供暖房间的应用  

Application of Intermittent Heating in Radiator Heating Room

作　　者：王玉 郑文科 李选平 姜益强 陈永烨 WANG Yu;ZHENG Wenke;LI Xuanping;JIANG Yiqiang;CHEN Yongye

机构地区：[1]哈尔滨工业大学建筑学院,黑龙江哈尔滨150001 [2]寒地城乡人居环境科学与技术工业和信息化部重点实验室(哈尔滨工业大学),黑龙江哈尔滨150001 [3]中国建筑西南设计研究院,四川成都610041

出　　处：《煤气与热力》2022年第4期10-16,共7页Gas & Heat

基　　金：十三五国家重点研发计划课题“主动式关键技术研究及产品研发”(2017YFC0702604)。

摘　　要：研究了散热器间歇供暖在近零能耗建筑的应用,通过建立近零能耗居住建筑典型房间计算模型,采用CFD数值仿真的方法模拟不同房间在过量或欠量供暖工况下的房间温度变化特征,探究供热量、外墙保温形式及外墙数量对房间温度、供暖效率及能耗的影响,分析不同房间模型(外保温一面外墙房间模型、外保温两面外墙房间模型、内保温一面外墙房间模型、内保温两面外墙房间模型)下不同工况室内空气温度、外墙内表面温度、供暖时间比例及房间能耗。结果表明:随着供热量的增加,房间供暖时间比例减小,平均能耗减小;房间供热量倍数和外墙数相同时,内保温房间比外保温房间在供暖及停暖时的温升、温降速率增加,平均能耗增大;房间供热量倍数和保温形式相同时,两面外墙房间的平均能耗大于一面外墙房间。The application of radiator intermittent heating in near zero energy consumption buildings is studied.By establishing a calculation model of typical rooms in near zero energy consumption residential buildings,the room temperature variation characteristics of different rooms under excessive or insufficient heating conditions are simulated by CFD numerical simulation method.The influence of heating capacity,external wall insulation form and external wall quantity on room temperature,heating efficiency and energy consumption is explored.The indoor air temperature,the inner surface temperature of the external wall,the proportion of heating time and the room energy consumption under different working conditions are analyzed for different room models(external insulation room model with one external wall,external insulation room model with two external walls,internal insulation room model with one external wall,and internal insulation room model with two external walls).The results show that with the increase of heating quantity,the proportion of room heating time decreases and the average energy consumption decreases.When the multiple of room heating quantity and the number of external walls are equal,compared with the external insulation room,the temperature rise and temperature drop rate of the internal insulation room increases during heating and shutdown,and the average energy consumption increases.When the multiple of room heating quantity and the thermal insulation form are the same,the average energy consumption of rooms with two external walls is greater than that of rooms with one external wall.

关 键 词：散热器供暖 过量或欠量供暖 温度变化 间歇供暖 

分 类 号：TU832.02[建筑科学—供热、供燃气、通风及空调工程]