本文針對紅外線輻射應用在PVA/水溶液薄膜乾燥上的效用與特性進行實驗分析，並對於乾燥設備進行改裝測試，將原有熱風狹縫噴嘴式烘箱加以改造，加裝紅外線石英燈管與反射罩於噴嘴狹縫間，對於單純熱風乾燥與紅外線輻射伴隨熱風乾燥的效果比較之間的差異，並改變不同的乾燥性質與操作參數，如紅外線加熱器位置、塗膜厚度、加熱溫度、熱風風量等，討論其對於乾燥速率的影響。
對於PVA/水溶液薄膜乾燥，由實驗結果發現紅外線輻射最主要能增進高含水率區間的乾燥速率，並證實紅外線加熱器位於整個烘箱的前半段的乾燥效果要比在後段來的好。

對於紅外線伴隨熱風乾燥實驗中，紅外線溫度、熱風溫度升高與增加熱風風量均可以提升乾燥速率，而在無風單純紅外線乾燥實驗，雖然紅外線亦有增加乾燥速率的效果，但乾燥速率很低，既熱風加熱所提供的對流熱傳速率，是薄膜乾燥中重要的熱傳條件，紅外線輻射則是能夠在熱風乾燥條件下，有效增加乾燥速率的加熱方式，且熱風在系統中亦有減少薄膜表面空氣中溶液濃度的作用，可以提升溶液的質傳速率。

此外當薄膜厚度較小時，紅外線輻射的效果非常顯著，可以增加含水率高時的乾燥速率，但隨著薄膜厚度增加，紅外線輻射乾燥的效果則相對減少，當薄膜厚度為1mm時，已經完全無法顯現其效果，主要是因為薄膜厚度增加，乾燥速率的快慢變成質傳速率所決定，就算增加外界熱傳速率也無法改善乾燥的效果。

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