葡萄差压通风预冷实验研究  

Experimental study on grape differential pressure pre -cooling

作　　者：王强[1] 刘凤珍[2] 连添达[3] 

机构地区：[1]西安交通大学,西安710049 [2]中南大学,长沙410075 [3]天津商学院,天津30040

出　　处：《制冷技术》2004年第4期33-35,共3页Chinese Journal of Refrigeration Technology

摘　　要：本文根据差压通风预冷的原理建立了实验台,对一定位置圆形开孔的葡萄差压预冷包装箱在五种不同开孔面积、5 种不同压差工况下的葡萄冷却速度分别进行了测试,并绘制了2.5h内的葡萄温降曲线。结果表明,合理地选择压差以及包装箱 开孔大小对葡萄的冷却速度、冷却均匀性起着关键的作用。According to the principle of differential pressure pre - cooling,an experimental device has been set up. The experimental cooling velocity has been conducted in five different test conditions of air vent hole and five different test conditions of air differential pressure. The curve of temperature degradation has been drawn during 2. 5 hours. The results of this test proved that the reasonable choice of differental pressure and air vent hole is the critical element for cooing speed and cooling uniformity.

关 键 词：葡萄 差压预冷 通风 选择压 包装箱 合理 开孔 压差 圆形 曲线 

分 类 号：TB66[一般工业技术—制冷工程]