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題 名 | 傳統型連續式茶葉乾燥機之能源效率探討=A Study on the Energy Efficiency of Traditional Continuous-flow Type Tea Dryer |
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作 者 | 張振厚; | 書刊名 | 臺灣茶業研究彙報 |
卷 期 | 32 2013.11[民102.11] |
頁 次 | 頁89-102 |
分類號 | 473.43 |
關鍵詞 | 茶葉; 乾燥機; 能源效率; Tea; Dryer; Energy efficiency; |
語 文 | 中文(Chinese) |
中文摘要 | 茶葉乾燥製程需要耗費相當多的能源,傳統茶葉乾燥機具存在能源效率不佳之問 題,本研究利用燃油式熱風之傳統型連續式茶葉乾燥機進行升溫性能評估及茶葉乾燥 試驗。依試驗結果分析,乾燥機之預熱過程,其升溫段能源消耗速率最大。茶葉乾燥 之能源效率及乾燥效率與茶葉含水率成正比,而能源成本及及二氧化碳排放率與茶葉 含水率成反比,尤其當含水率低於5%以下時,其比值增加的幅度相對較大。由能源 成本及二氧化碳排放量之百分比顯示燃油均佔97%以上,用電所佔的比例相對微小, 欲達到節能減碳之目的,應以減少燃油消耗量為主要目標。乾燥過程中機體內排氣端 之中、下層溫度高於上層溫度,平均排氣溫度高於平均進氣溫度約1.9 倍,平均燃燒 廢氣溫度高於平均熱風溫度約1.4 倍,顯示乾燥機之能源利用效率仍有改善空間。 |
英文摘要 | Because the excess energy consumption and heat lost in tea processing operations, the energy efficiency of traditional tea dryer should be studied and improved. The research would study energy efficiency of the tea dryer which was continuous-flow type by preheated test and tea drying tests. According to the results of experiments, the energy consumption rate of dryer was maximum during temperature increase period of dryer preheated process and the energy efficiency of dryer was proportional to moisture content of tea, but the energy cost and the ratio of carbon dioxide exhaust were reverse proportional. Especially, those ratios were higher when the moisture of tea was less than 5%. Additionally, the cost and the carbon discharge of fuel ratio were above 97% in amount of energy and the temperature of the middle and bottom layer was higher than that of the top layer in the chamber of dryer, the averaged temperature of output air was about 1.9 times higher than the input air, and the average temperature of combustion exhaust gas was about 1.4 times higher than the drying temperature. The energy efficiency of the tea dryer is suggested to be improved by recycled heating in the tea processing. |
本系統中英文摘要資訊取自各篇刊載內容。