轻工学报2024，Vol.39Issue(4)：1-8,8.DOI:10.12187/2024.04.001
超声微波协同提升贡柑片热风干燥效率的研究
Ultrasonic-microwave synergistic processing improvement of hot air drying efficiency for citrus Gonggan slices
摘要
Abstract
Using methods such as dynamics and thermodynamics,the drying laws,dynamic models,moisture migration,thermodynamic parameters,etc.of citrus Gonggan slices during hot air drying at different temperatures were studied.The effects of ultrasound-microwave synergistic pretreatment on the drying efficiency of citrus Gonggan slices during hot air drying were also analyzed.The results showed that the drying process followed the Two term exponential model and the drying rate was co-related with the drying temperature.The drying rate was the fastest when the drying temperature was 80℃.The ultrasound-microwave synergistic pretreatment effectively reduced the drying time by 0.5 hours to 1.5 hours.The activation energy(Ea)of moisture diffusion was significantly lowered by 1.620 kJ/mol.At a given hot air drying temperature,the ΔH≠,ΔS≠,and ΔG≠ of the ultrasound-microwave synergistic pretreatment group were all lower than the control group.The ultrasound-microwave synergistic pretreatment could increase the effective coefficient of water diffusion of citrus Gonggan slices(4.333×10-7 to 8.967×10-7),resulting in more pores on their surfaces.Therefore,the ultrasound-microwave synergistic pretreatment could effectively improve the hot air drying efficiency of citrus Gonggan slices.关键词
贡柑片/超声微波协同预处理/热风干燥/热质传递效率/水分迁移Key words
citrus Gonggan slices/ultrasonic-microwave synergistic pretreatment/hot air drying/heat and mass transfer efficiency/moisture migration分类
轻工纺织引用本文复制引用
肖更生,沈乔眉,林可为,王锋,刘东杰,马路凯..超声微波协同提升贡柑片热风干燥效率的研究[J].轻工学报,2024,39(4):1-8,8.基金项目
"十四五"广东省农业科技创新十大主攻方向"揭榜挂帅"项目(2024KJ15) （2024KJ15）
国家自然科学基金项目(31901734) （31901734）
广东省普通高校特色创新项目(2022KTSCX053) （2022KTSCX053）
广东省大创项目(S20221134705) （S20221134705）
