摘要
保水性铺装是一种通过表面蒸发冷却来有效降低铺装表面温度的方法,可以缓解城市热岛现象。保水材料的种类不同,效果各异,若进行室外蒸发冷却实验会受到气候条件的制约。本文以日光灯模拟太阳照射,制作了室内蒸发冷却实验装置,并针对此装置的可行性进行了实验及数值计算分析。而后,应用此装置进行了实验,分析了开粒度沥青表面铺装材料和具有吸水/保水性沥青表面铺装材料的表面蒸发冷却效果。
Water retention pavement is an effective method to decrease the surface temperature,which could relieve the heat island phenomenon.Different water retention materials have different evaporation cooling effects,and their outdoor evaporation cooling experiments are restricted by climatic conditions.In this paper,using the fluorescent lamp to simulate the solar radiation,the indoor evaporation cooling test facility was set up.The experiments and numerical analysis were carried out to validate the feasibility of this facility.Furthermore,surface evaporation cooling experiments for asphalt and water absorption/retention asphalt pavement materials were implemented and the effects were discussed.
出处
《建筑科学》
北大核心
2011年第6期56-60,共5页
Building Science
基金
北方工业大学科研基金项目
关键词
热岛
吸水性
保水性
蒸发冷却
湿气对流系数
heat island
water absorption property
water retention property
evaporation cooling
moist transfer coefficient
