- 期刊
內具石蠟相變化材料之塑木鋪面其熱傳特性實驗研究
Experimental Study of Heat Transfer Characteristics for the Plastic-Wood Pavement Filled with Paraffin Phase Change Materials
摘要
本研究以實驗方法觀察內嵌相變化材料之戶外型塑木鋪面之熱傳特性，實驗測試以鹵素燈模擬太陽輻射熱能，測試的鋪面材料統一特定的尺寸，測試塊分別有結晶磚、實心木塊、內部中空之塑化木鋪面、內部具相變化材料之塑化木鋪面，本研究採用工業用石蠟作為相變化材料，以實驗方法量測各測試塊的鋪面表面與內部溫度，分析鋪面材料在受鹵素燈照射後的溫度變化與鋪面材料熱性質（熱傳導係數、比熱等）之間的關係。實驗結果指出，與無石蠟之鋪面材料相比較，內部具石蠟之塑化木鋪面可以降低鋪面表面溫度約4℃，鋪面材料的底面溫度更是低了約12℃，主要歸因於石蠟融熔時的潛熱吸收及較低的熱傳導係數，本研究提出之具相變化材料之塑化木鋪面對於改善城市熱島效應將具有正面幫助。
並列摘要
The work experimentally investigated the heat transfer characteristics of outdoor plastic-wood pavement filled with phase change materials. A halogen lamp was used to simulate the sum. Four specimens were employed: solid wood block, crystal brick, hollow plastic-wood pavement and plastic-wood pavement filled with phase change materials. The size of specimens was fixed. The industrial paraffin was used as the phase change material. The surface and internal temperatures of the specimens were measured after exposure to the halogen lamp to analyze the relationships between the temperature variations and specimens' thermal properties. The results indicated that, by compared with the pavements without PCM, the plastic-wood pavement filled with PCM reduced around 4℃ and 12℃ at the upper surface and bottom surface respectively. It is mainly due to the latent heat absorption of paraffin melt and lower thermal conductivity of the plastic-wood pavement. Therefore, the present new cool pavement did help in improving the urban heat island effect.