化工学报2016，Vol.67Issue(12)：4976-4982,7.DOI:10.11949/j.issn.0438-1157.20160463
均匀多孔介质下乙醇溶液的过冷度
Supercooling degree of ethanol solution under action of porous media
摘要
Abstract
In order to study the effects of porous media on supercooling degree of ethanol solution, the experimental system of porous media with different porosities and thermal conductivities was built. The effect of ethanol concentration on the supercooling degree was investigated by changing the ethanol concentration. The method of heat transfer enhancement was explored by changing the porosity and thermal conductivity of porous media. The data were processed by statistical method and the experiment at each condition was repeated 32 times. The experimental results showed that the porosity and thermal conductivity of porous media had effects on the supercooling degree of ethanol solution. With decreasing porosity and increasing thermal conductivity, the average supercooling degree decreased, and the stability was improved. High concentration had obvious effect on decreasing the supercooling degree. The higher the concentration, the lower the average value and the maximum value of supercooling degree, while the change of concentration had little effect on the stability of supercooling degree.关键词
过冷度/多孔介质/乙醇溶液/孔隙率/浓度Key words
supercooling degree/porous media/ethanol solution/porosity/concentration分类
能源科技引用本文复制引用
章学来,李跃,王友利..均匀多孔介质下乙醇溶液的过冷度[J].化工学报,2016,67(12):4976-4982,7.基金项目
国家自然科学基金项目（50976064，51376115）。@@@@supported by the National Natural Science Foundation of China (50976064,51376115) （50976064,51376115）
