本研究將微膠囊相變化材料 (microencapsulated phase change materials，mPCM) 結合鋁蜂巢板作為建築外牆結構，透過相變化材料的熱物理性質，將室外環境的熱能轉換為相變化材料的潛熱能，有效降低並延緩太陽日射對於室內環境熱舒適性之影響。本研究針對不同室外與室內邊界條件之組合，以實驗方法探討mPCM 鋁蜂巢板建材應用於建築外牆之熱傳性能。實驗模型為長0.3 公尺，寬為0.3 公尺，厚度為0.03 公尺的壓克力容器，內置總重為1192 公克的mPCM 粉末，並以鋁片覆蓋將其封閉，製成mPCM鋁蜂巢板建材，以模擬建築外牆結構。實驗模型共有兩個邊界條件，分別為室外邊界與室內邊界，以模擬mPCM 鋁蜂巢板建材的室外環境與室內環境。在白天時，室外環境接受太陽日射，故本實驗以兩種室外邊界條件模擬太陽日射，分別為高日射熱得與低日射熱得；在夜晚時，不考慮夜間輻射效應，室外環境停止供熱，故本實驗以兩種室外邊界條件模擬mPCM 鋁蜂巢板建材之散熱方式，分別為緩慢散熱與一般自然對流散熱。mPCM 鋁蜂巢板建材室內側為人居環境，本實驗以兩種室內邊界條件模擬室內環境，第一種為受空調氣流或電扇吹拂，即建材表面以強制對流散熱，第二種為關閉空調和電扇，即指建材表面以自然對流散熱。實驗結果顯示，鋁蜂巢板建材內部含有微膠囊相變化材料時，能降低室內側熱流峰值，並延後峰值出現的時間，有效降低能源使用效率並提高室內環境舒適度；當室外邊界為緩慢散熱、室內邊界為強制對流時，將會使進入至室內環境的熱能最多，降低人居環境的舒適度。

In recent years, environmental awareness gradually rises. Green building issues are valued. Improving energy efficiency and enhancing the indoor environment quality become more important. The main contents of the study use the microcapsule phase change material combined with aluminum honeycomb board as the external structure of the building. Through the thermophysical properties of the phase change material, the thermal energy of the outdoor
environment is converted into the latent heat energy of the phase change material, which effectively reduces and delays the influence of the solar radiation on the indoor environment thermal comfort. In addition, this study discusses the thermal performance of mPCM aluminum honeycomb board used in building exterior wall with different outdoor and indoor boundary conditions. There are two types of outdoor boundary conditions during the daytime such as high heat gain and low heat gain. Similarly, there are two types of outdoor boundary conditions at night such as lentamente heat dissipation and natural heat dissipation. One the other hand, there are two types of indoor boundary conditions during the day and night such as forced convection and natural convection. In these experiment results, the maximum of heat converting into the indoor environment is the combination lentamente heat dissipation outdoor with forced convection indoor boundary condition.

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