摘要
该新风预热墙是一种兼顾供暖和新风预热需求的太阳能墙体,由渗透型集热板、空气夹层、出风口、保温墙体等组成。通过人工气候室实验测试的方法,分析该太阳能墙系统在不同太阳辐射强度、开孔高度和集热板高度比例、抽吸速度以及渗透孔径等工况下各运行阶段集热板、出风口等热性能。结果表明:随着太阳辐射强度、开孔高度和集热板高度比例的增加,系统的热效率和新风温度显著提升,集热效率最高达到75%,最高温升约为15.0℃;并根据风温和风量需求,给出合理的风机抽吸速度和渗透孔径取值,可为太阳能墙体的实际应用提供依据。
The fresh air preheating wall is a kind of solar wall considering the heating and fresh air preheating requirements.It consists of an air-infiltrating heat collecting plate,an air layer,an air outlet,and an insulation wall.In this study,the thermal performance of the solar wall system was analyzed under different hole-opening height and heat collecting plate height ratios,solar radiation intensities,fan suction speeds and infiltration hole diameters which were tested in the artificial climate chamber.Results show that,with the increase of solar radiation intensity and the holeopening height and heat collecting plate height ratio,the efficiency of the whole system and air temperature are improved.The collector efficiency can reach 75%,the increase of air temperature at outlet 15℃.The optimal range of the fan suction speed and infiltration hole diameter are determined,according to the demand of fresh air temperature and volume.The work provides the basis for the practical application of the solar wall.
作者
王登甲
高倩
刘艳峰
刘园
刘加平
Wang Dengjia;Gao Qian;Liu Yanfeng;Liu Yuan;Liu Jiaping(Western State Key Laboratory of Green Building,Xi’an University of Architecture&Technology,Xi’an 710055,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2019年第9期2649-2654,共6页
Acta Energiae Solaris Sinica
基金
“十三五”国家重点研发计划(2016YFC0700400)
国家自然科学基金(51678468
51878532)
关键词
太阳能供暖
集热效率
实验研究
新风预热
非均匀多孔
solar heating
collector efficiency
experiments
fresh air preheating
non-uniform porous
