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地黃真空紅外輻射干燥質(zhì)熱傳遞分析
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河南省杰出青年基金資助項(xiàng)目（084100510005）


Mass and Heat Transfer Analysis of Vacuum Infrared Radiation Drying on Rehmanniae
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    摘要:

    以Fourier方程和Fick定律為基礎(chǔ)，建立了地黃真空紅外輻射干燥過(guò)程傳熱、傳質(zhì)的數(shù)學(xué)模型。通過(guò)理論推導(dǎo)和試驗(yàn)測(cè)定，確定了模型中有關(guān)參數(shù)的數(shù)值或方程。利用有限差分法進(jìn)行了不同干燥條件下物料溫度和含水率變化的數(shù)值模擬。結(jié)果表明：模擬值和試驗(yàn)值吻合較好，該模型可以較好地?cái)M合地黃干燥過(guò)程中溫度和含水率的變化，且能較好體現(xiàn)各干燥參數(shù)對(duì)干燥特性的影響情況。

    Abstract:

    Mathematical model of mass and heat transfer about vacuum infrared radiation drying on Rehmanniae was built based on Fourier equation and Fick equation. The values or equation of model parameters were determined by theoretical analysis and experiments. By using finite difference method, mathematical simulations of sample temperature and moisture content under different drying conditions were carried out. The results showed that values of simulation and experiment fit well, the model could well simulate the changes of sample temperature and moisture content during drying and the influence of drying parameters on drying characteristics were illustrated by the model satisfactorily. 

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劉云宏,朱文學(xué),劉建學(xué).地黃真空紅外輻射干燥質(zhì)熱傳遞分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(10):135-140. Liu Yunhong, Zhu Wenxue, Liu Jianxue. Mass and Heat Transfer Analysis of Vacuum Infrared Radiation Drying on Rehmanniae[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(10):135-140.

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