Research progress on parameter control technology of heat pump drying for agricultural products
Heat pump drying is suitable for agricultural product with high moisture content and hard to dry,has significant advantage of energy-saving.However,it was very difficult to control the drying parameters of heat pump drying due to the nonlinear dehydration of materials.Especially,as important factors in heat pump drying,temperature,humidity,air speed lack of mature precision control and process control technology,this limits the development of the heat pump drying technology.The effects of temperature,humidity and air speed on the drying efficiency,energy consumption and quality of agricultural product heat pump were reviewed,and analyzd the development status and future development trend of parameter precision control technology and process control technology,in order to provide reference for the development of efficient,high-quality and energy-saving agricultural product heat pump drying equipment.
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