太阳能空气干燥装置的发展现状  

Development Status of Solar Air Drying Equipment

作　　者：贾斌广 陈茹 王达[1] JIA Bin-guang;CHEN Ru;WANG Da(Jinan Fruits Research Institute,All China Federation of Supply and Marketing Cooperatives,Jinan 250200,China;Ecology Institute of Shandong Academy of Sciences,Jinan 250101,China)

机构地区：[1]中华全国供销合作总社济南果品研究院,山东济南250200 [2]山东省科学院生态研究所,山东济南250101

出　　处：《中国果菜》2019年第10期12-20,共9页China Fruit & Vegetable

基　　金：国家重点研发计划（2017YFD0400905-3）

摘　　要：干燥是延长农产品贮藏时间,提高农产品附加值的重要环节。随着燃料资源的枯竭、化石燃料成本的上涨,利用太阳能干燥日渐成为最有效的干燥方法之一。本文介绍了太阳能空气干燥装置的发展现状,并分析了应用太阳能干燥的有利条件,指出强迫对流可以提高太阳能干燥的效率,但最佳的送风量要从热质传递与经济性两者综合考虑。研究表明,优化太阳能干燥装置有效提高10%~40%的太阳能利用效率,然而目前尚未得到集热装置的最优形式。最后,文章指出蓄热与多能互补是太阳能空气干燥装置今后的发展方向。Drying is an important process to prolong storage time of agricultural products and increase economic value of agricultural products.It makes solar energy become one of the most effective methods,because of the depletion of fuel resources and the rising cost of fossil fuels.The development status and the favorable conditions of solar energy were introduced in this paper.It was pointed out that forced air flow could improve the efficiency of solar drying,but the optimal air volume should be considered from the heat and mass transfer and economy.In addition,it could improve the efficiency of the solar heaters 10%-40%by optimizing solar drying equipment.However,the optimal structure of solar heaters had not yet been obtained.Finally,heat storage and multi-energy complementation were future development directions of solar air drying devices.

关 键 词：太阳能干燥 空气集热器 集热效率 强化传热 

分 类 号：S214.4[农业科学—农业机械化工程]