| 湿度差驱动下溶液蒸发冷冻过程中冰体的发展规律 |
| |
| 引用本文： | 高蓬辉,纪绍斌,衡文佳,周兴业,周国庆.湿度差驱动下溶液蒸发冷冻过程中冰体的发展规律[J].化工学报,2013,64(8):2820-2826. |
| |
| 作者姓名： | 高蓬辉 纪绍斌 衡文佳 周兴业 周国庆 |
| |
| 作者单位： | 1. 中国矿业大学深部岩土力学与地下工程国家重点实验室, 江苏 徐州 221116;
2. 中国矿业大学力学与建筑工程学院, 江苏 徐州 221116 |
| |
| 基金项目： | 国家自然科学青年基金项目，中国博士后面上基金项目(20110490042).supported by the National Natural Science Foundation of China，the China Postdoctoral Science Foundation |
| |
| 摘 要： | 针对湿度(绝对湿度)差驱动下溶液的蒸发冷冻过程进行了分析研究,在热质平衡理论的基础上,考虑溶液表面冰体的形面变化特征,建立了蒸发冷冻过程中溶液表面冰体生长的热力学非稳态模型,分析了不同蒸发冷冻时刻,气-液界面间湿度(绝对湿度)差、气流速度以及气-液界面间质扩散对溶液表面冰体发展分布的影响,研究表明湿度(绝对湿度)差、气流速度和质扩散系数对溶液的蒸发冷冻作用明显。该理论模型及研究结果为强化湿度差驱动下溶液的蒸发冷冻及工程应用提供了理论指导和依据。
|
| 关 键 词： | 蒸发冷冻 冰体 湿度差 |
| 收稿时间： | 2012-12-03 |
| 修稿时间： | 2013-02-28 |
Icing evolution in process of liquor evaporation-refrigeration driven by humidity difference |
| |
| GAO Penghui
,
JI Shaobin
,
HENG Wenjia
,
ZHOU Xingye
,
ZHOU Guoqing.Icing evolution in process of liquor evaporation-refrigeration driven by humidity difference[J].Journal of Chemical Industry and Engineering(China),2013,64(8):2820-2826. |
| |
| Authors: | GAO Penghui JI Shaobin HENG Wenjia ZHOU Xingye ZHOU Guoqing |
| |
| Affiliation: | 1. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;
2. School of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China |
| |
| Abstract: | Icing characteristic is important for refrigeration,freezing desalination and chemical engineering. A new freezing method is proposed in this paper,which is driven by humidity difference in 0℃ environment.The evaporation-refrigeration of liquor driven by absolute humidity difference in zero centigrade was studied.Based on heat and mass balance,an unsteady-state thermodynamic model was established with movement characteristic of icing on the surface of liquor,which could simulate icing development under different conditions.The effects of absolute humidity difference,airflow velocity and mass diffusion coefficient on icing development were analyzed.The results indicate that above factors have evident effects on the liquor evaporation-refrigeration.The model and results will provide a theoretical basis and guidance for liquor evaporation-refrigeration driven by absolute humidity difference and its applications. |
| |
| Keywords: | evaporation-refrigeration icing humidity difference |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
