CAJ | 학술논문

根据多孔介质热湿传递机理,分析了室外气候荷载作用下含湿量变化对建筑墙体的温度波衰减系数、温度波延时时间等热工性能参数的影响.结果显示,随着含湿量的增加,墙体的有效导热系数和容积比热均增大,然而含湿量增大可减小温度波通过墙体时的衰减系数,同时增大了温度波达到墙内表面的延时时间.这些特性有利于减少温度波对室内环境舒适性的影响,尤其是对非空调的通风房间舒适性的影响.
근거다공개질열습전체궤리,분석료실외기후하재작용하함습량변화대건축장체적온도파쇠감계수、온도파연시시간등열공성능삼수적영향.결과현시,수착함습량적증가,장체적유효도열계수화용적비열균증대,연이함습량증대가감소온도파통과장체시적쇠감계수,동시증대료온도파체도장내표면적연시시간.저사특성유리우감소온도파대실내배경서괄성적영향,우기시대비공조적통풍방간서괄성적영향.
According to the heat and moisture transfer mechanism of porous medium,the study analyzed the heat engineering performance parameters caused by the change of moisture content under the influence of outdoor climate load such as the temperature wave attenuating coefficient and the time duration of temperature wave delay of building walls and other coefficient of thermal properties.The results indicated that as the moisture content increases,the effective thermal conductivity and the volume specific heat of walls both increase.However,the increase of humidity shall decrease the weakening coefficient of temperature wave when transmitting through the walls,and at the same time increase the delay time temperature wave when reaching the indoor surface of walls.These features shall be good for decreasing the influence of temperature wave to the comfortibility of indoor environment,especially for decreasing the influence of the comfortibility of the rooms without air-conditioners.