The operation principles of the defrosting methods of air cooler in cold stor-age are introduced,including hot gas defrosting,water defrosting and electric defrost-ing.Under the same operation condition,the comparative analysis is made from initial in-vestment cost,operation cost,defrosting effect etc.The results show that the initial in-vestment of air cooler with electric defrosting is the lowest,which is 60%of that of hot gas defrosting,and 80%of that of water defrosting;the operation cost of air cooler with hot gas defrosting is about 40%-50%of that of electric defrosting,and 1.2-1.4 times of that of water defrosting;the defrosting effect of air cooler with water defrosting is the best.Finally,the defrosting methods of air cooler for different types of cold storage are suggested.
关键词
冷库/冷风机/热气融霜/水冲霜/电热融霜
Key words
cold storage/air cooler/hot gas defrosting/water defrosting/electric de-frosting
维普
万方数据