稻穀間歇乾燥新薄層公式

A New Thin-Layer Equation for Intermittent Drying of Rough Rice

陳貽倫(Yi-Luen Chen)

《農業機械學刊》 7卷2期 (1998/06) Pp. 51-59

https://doi.org/10.30062/JAM.199806.0005

摘要

以國產梗稻作稻穀薄層間歇乾燥試驗，可變之乾燥參數及其範圍為：通風溫度自35至60℃；通風風速自15至25cm/s；每循環之乾燥時間自5至15分鐘；每循環之均化時間自40至120分鐘。
設每一處理之乾燥曲線皆遵照指數模式MR=A•exp(-kt)、將每一處理之數據用迴歸法適配(fit)於該模式後、可得一組A，k值，在四個乾燥參數不同位階(level)組合之不同乾燥條件下，共獲162組A，k值，經第二次迴歸處理，分別得A，k二值之推算式(Predictors)，此二推算式中之A，k值皆為上述四參數之函數，其相關件之決定係數分別為0.674和0.913。

關鍵字

稻穀 ； 薄層 ； 間歇乾燥

並列摘要

Intermittent drying experiment using paddy rice of medium grain were carried out with drying temperatures ranging from 35 to 60℃,drying air velocities from 15 to 25 cm/s, drying phase duration from 5 to 15 minutes, and tempering phase duration of 40 to 120 minutes as drying variables.
Each treatment of drying was assumed to take the commonly used exponential drying model of MR=A•exp(-kt).A pair of A, k values were derived through a first-step regression by fitting the drying data into the model. Onehundred and sixty-two pairs of A,k values were thus derived and fitted, with their corresponding levels of drying variables, into a pair of multivariate predictors for predicting A and k. These two predictors were found both to be functions of the above-mentioned four drying parameters. Their determination coefficients of correlation were 0.674 and 0.913, respectively.

並列關鍵字

Rough rice ； Thin layer ； Intermittent drying