室内空气流动对辐射顶板供暖系统的影响分析  

Influence analysis of indoor air flow on radiant ceiling heating system

作　　者：陆美瑶 李念平[1] 彭晋卿 阿勇嘎 袁宸章 黄晨昱 汪泳思 LU Meiyao;LI Nianping;PENG Jinqing;A Yongga;YUAN Chenzhang;HUANG Chenyu;WANG Yongsi(College of Civil Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《热科学与技术》2022年第5期484-490,共7页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(51878255)。

摘　　要：辐射顶板冬季供暖时,室内会出现较大的垂直温差,且不符合人体“头冷脚暖”的需求。为了提高辐射顶板供暖系统的舒适性。分别对辐射顶板结合风盘侧吹、吊扇反吹、吊扇对吹三种气流组织形式的供暖系统进行实验测试。结果表明:风盘侧吹和吊扇反吹工况能减少室内的垂直温差,降低垂直不满意率,吊扇对吹工况垂直温差增大,垂直不满意率超过20%。风盘侧吹和吊扇反吹工况下房间的操作温度提高;吊扇对吹工况操作温度下降。三种气流组织形式均能提高辐射顶板的供热能力,其中吊扇反吹(450 r/min)工况下辐射顶板的供热能力提升30%。In ceiling radiant heating,there will be a large vertical temperature difference in the room and the indoor air temperature does not meet the need with″cold head and hot feet″of the human body.In order to improve the comfort of the radiant ceiling system in heating mode,heating experiments were carried out on the radiant ceiling combined with three air distribution modes as fan coil side blowing,ceiling fan blowing reversely and ceiling fan blowing.The experimental results show that fan coil side blowing and ceiling fan blowing reversely can reduce the vertical temperature difference in the room and the vertical dissatisfaction rate,while the working condition of ceiling fans blowing increases the vertical temperature difference,and the vertical dissatisfaction rate exceeds 20%.The working conditions of fan coil side blowing and ceiling fan blowing reversely can increase the operating temperature of the experimental room.The working condition of ceiling fan blowing can reduce the operating temperature of the experimental room.At the same time,all the three air distribution modes can improve the heating capacity of the radiant ceiling,among which the heating capacity of the radiant ceiling under the condition of ceiling fans blowing reversely(450 r/min)is increased by 30%.

关 键 词：辐射供暖 气流组织 垂直温差 供热能力 

分 类 号：TU832.1[建筑科学—供热、供燃气、通风及空调工程]