点击次数：

影响因子：5.295

DOI码：10.1016/j.applthermaleng.2021.117751

发表刊物：Applied Thermal Engineering

摘要：The present study proposes a rapid cooling method based on vacuum spray flash evaporation, and establishes an experimental system to study the cooling performance of this method by taking beverages as an example. The feasibility and superiority of vacuum spray flash cooling (VSFC) are demonstrated by making the comparisons with the existing rapid cooling methods. A cooling performance evaluation is presented concentrating on the influence of the discharge coefficients of nozzle, multi-nozzle array, and vacuum degree of flash chamber. Meanwhile, the relevant operational parameters of VSFC are optimized. Experiments have shown that the VSFC cools almost six times faster than a freezer. Combined with the simulation, it is found that the cooling process of beverages could be divided into the initiating enhancement stage and the gradual decline stage, in accordance with the characteristics of the internal flow of the beverage during rapid cooling. Parametric analysis indicates that there is an optimal discharge coefficient of nozzles in order to achieve maximum cooling rate for VSFC.

论文类型：期刊论文

卷号：201

页面范围：117751

是否译文：否

发表时间：2021-10-25

收录刊物：SCI

发布期刊链接：www.elsevier.com/locate/apthermen