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吸附制冷工质对的有效扩散系数测定及其分析
引用本文:王勤,陈光明,韩宝琦. 吸附制冷工质对的有效扩散系数测定及其分析[J]. 太阳能学报, 2001, 22(2): 187-191
作者姓名:王勤  陈光明  韩宝琦
作者单位:1. 浙江大学制冷与低温工程研究所,
2. 西安交通大学制冷与低温工程系,
摘    要:采用非稳定重法测定了吸附制冷工质对13X-H2O的有效扩散系数,测量范围是:温度50-250℃,压力0.6-3.5kPa,实验数据表明,压力和吸附量在测量范围内对有效扩散系数的影响很小,可近似折算于有效扩散系数与温度的依赖关系-Arrhenius方程中,水分子的表面扩散是颗粒内扩散的主要控制因素。

关 键 词:有效扩散系数 吸附制冷工质 测定 分子筛
文章编号:0254-0096(2001)02-0187-05
修稿时间:1999-11-04

DETERMINATION AND ANALYSISOF THE EFFECTIVE DIFFUSIVITY OF ADSORPTION REFRIGERATION WORKING PAIR
Wang Qin,Chen Guangming,Han Baoqi. DETERMINATION AND ANALYSISOF THE EFFECTIVE DIFFUSIVITY OF ADSORPTION REFRIGERATION WORKING PAIR[J]. Acta Energiae Solaris Sinica, 2001, 22(2): 187-191
Authors:Wang Qin  Chen Guangming  Han Baoqi
Affiliation:Wang Qin 1,Chen Guangming 1,Han Baoqi 2
Abstract:The effective diffusivity of adsorption refrigeration working pair 13X-H2O was determined by TG in unsteady diffusition.The data range is from 50℃ to 250℃ in temperature and from 0.6kPa to 3.5kPa in pressure.The experimental data showed that the influences of pressure and concentration on the effective diffusivity are very small and can be expressed in the Arrhenius equation.The surface diffusion of water is the main control factor in the pellet diffusion.
Keywords:effective diffusivity  experiment  zeolite
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