声空化强化渗透脱水  

ENHANCING OSMOTIC DEHYDRATION WITH ACOUSTIC CAVITATION

作　　者：孙宝芝 姜任秋 淮秀兰[2] 李斌[3] 刘登瀛[2] 

机构地区：[1]哈尔滨工程大学动力与核能工程学院,黑龙江哈尔滨150001 [2]中国科学院工程热物理研究所,北京100080 [3]中国科学院电工研究所,北京100080

出　　处：《化工学报》2004年第10期1714-1718,共5页CIESC Journal

基　　金：国家重点基础研究发展规划项目(No G2 0 0 0 0 2 63 0 5 );国家自然科学基金项目 (No 5 0 3 760 63 );中国科学院工程热物理研究所所长基金项目共同资助 .~~

摘　　要：An experimental study was carried out to enhance osmotic dehydration of fruits—apples using acoustic cavitation.The variation in water losses and dry matter gain rates of materials with solute concentration, cavitation intensity, the thickness of materials and treating time segment during osmotic dehydration was discussed,at the same time, the influence of different materials on mass transfer during osmotic dehydration using acoustic cavitation was investigated.The results showed that water losses rates of materials were remarkably increased during osmotic dehydration using acoustic cavitation, but dry matter gain rates increased very little.Meanwhile the physical mechanism of enhanced mass transfer during osmotic dehydration with acoustic cavitation was clarified on the basis of analyzing the experimental results.An experimental study was carried out to enhance osmotic dehydration of fruits-apples using acoustic cavitation. The variation in water losses and dry matter gain rates of materials with solute concentration, cavitation intensity, the thickness of materials and treating time segment during osmotic dehydration was discussed, at the same time, the influence of different materials on mass transfer during osmotic dehydration using acoustic cavitation was investigated. The results show that water losses rates of materials are remarkably increased during osmotic dehydration using acoustic cavitation, but dry matter gain rates increase very little. Meanwhile the physical mechanism of enhanced mass transfer during osmotic dehydration with acoustic cavitation was clarified on the basis of analyzing the experimental results.

关 键 词：渗透脱水 质量传递 声空化 

分 类 号：TK124[动力工程及工程热物理—工程热物理]