应用因次分析和实验测定相结合的方法，对恒速干燥阶段的对流传热系数进行了研究。

The study is about the coefficient of heat transfer of convection in the stage of Constant rate of drying with the ways of dimensional analysis and the experiments.

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辣椒的干燥过程在初期的大多数时间内，辣椒处于恒速干燥阶段，然后则处于缓慢降速干燥阶段。

Also most time in the low tempereture , there is a constant rate stage in capsicum's drying process, the other time the capsicum's drying process is in a decelerated stage.

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干燥温度越高、污泥颗粒越小，干燥至一定的含水率所需的干燥时间越短，恒速干燥阶段的干燥速率越高。

The higher the drying temperature and the smaller the particles of sludge, the shorter time be needed to dry to a certain moisture content and the higher drying rate in constant rate drying stage.

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