爬藤植物綠化對於建築物降溫效果之研究

Abstract

目前推行的綠化多以屋頂綠化、平面綠化為主，而台灣地狹人稠，都會區人口相當集中，土地資源有限，故推行壁面綠化可以增加綠視率，也可達到節能減碳之效果。 本研究之主要目的在探討壁面綠化之隔熱效果；針對爬藤植物直接覆蓋於建築物外殼的綠化形式對於建築物隔熱效果之影響。 研究第一部分藉由直接觀測台灣現有的壁面綠化案例以影像式的熱像資料來做定性的描述，再以局部區塊量化的數值作定量的分析，檢討爬藤壁面綠化與建築物壁面溫度之差異，並以不同表面溫度之比較，了解爬藤植物壁面綠化對表面溫度的實質降溫效果。第二部分藉由普通混凝土以及輕質混凝土做為模擬牆面之試體，測量不同葉面密度之爬藤植栽覆蓋於混凝土試體表面溫度與實牆的表面溫度，進一步深入探討爬藤植栽對於混凝土建築物降溫效果、節省之熱量、減少之耗電量以及減碳量。

Presently, green on roofs and on the plane is more popular method to make environment green. However, it is crowded in Taiwan urban area and the land resource is limited. Therefore, to carry out greening walls could increase the green view and also achieve the energy conservation to reduce effect of the carbon. The major purpose of this research is to discuss thermal effect of greening wall which focus on climbing plants in reducing temperature of concrete buildings. First, using thermal imagers examines some available greening wall cases in Taiwan. Using the result to do quantitative and qualitative analysis and compare the surface temperature differences of greening walls with that of bare walls. Second, ordinary performance concrete and light weight concrete are used for specimens to simulate the wall of a room. The surface temperature of concrete specimens with different leaf area density would be measured by thermal couples, and further, summarize the cooling effect, energy conservation and carbon reduction of climbing plants application on buildings.