Abstract Solar conduction dryer (SCD) utilizes all three modes of heat transfer, viz., conduction, convection, and radiation. The effect of individual mode of heat transfer in SCD on agricultural product drying was studied using drying kinetics and basic heat transfer calculations. It was observed that the order of influence of mode of heat transfer mechanism as conduction followed by radiation and then convection. The correlation for relative activation energy (∆E v /∆Ev,∞) as a function of moisture content (X−X ∞ ), effective diffusivity (D eff ), and mass transfer coefficient (h m ) were determined for each mode of heat transfer. It was observed that the reaction engineering approach (REA) is appropriate tool to understand the physics of drying mechanism in SCD.

中文翻译：

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基于反应工程方法的太阳能传导干燥器数学分析

摘要 太阳能传导干燥器 (SCD) 利用所有三种传热模式，即传导、对流和辐射。使用干燥动力学和基本传热计算研究了 SCD 中单个传热模式对农产品干燥的影响。观察到传热机制模式的影响顺序为传导，然后是辐射，然后是对流。确定了每种热模式的相对活化能 (ΔE v /ΔEv,∞) 与水分含量 (X−X ∞ )、有效扩散率 (D eff ) 和传质系数 (hm ) 的相关性转移。据观察，反应工程方法 (REA) 是了解 SCD 干燥机理物理的合适工具。