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The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method

文献类型：期刊论文

作者Liu, Lin1,2; Huang, Hongyu1; He, Zhaohong1; Li, Shijie1,2; Li, Jun3; Chen, Jiechao1; Deng, Lisheng1; Osaka, Yugo4; Kobayashi, Noriyuki3
刊名NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING
出版日期2018
卷号22期号:4页码:255-269
关键词Silica gel consolidated composite adsorbents heat and mass transfer freeze-drying method
ISSN号1556-7265
DOI10.1080/15567265.2018.1490938
通讯作者Huang, Hongyu(huanghy@ms.giec.ac.cn) ; He, Zhaohong(hezh@ms.giec.ac.cn)
英文摘要A series of experimental investigations had been performed to analyze the heat and mass transfer performance for two novel types of silica-based consolidated composite adsorbents developed by the freeze-drying method. The first type of adsorbent is silica gel consolidated with carboxymethyl cellulose (CMC) (SC), while the other is silica gel consolidated with CMC and carbon fiber powder (SCC). Results indicate that the thermal conductivity of consolidated composite adsorbents increases with the mass proportion of carbon fiber powder, while it decreases with the increasing moisture content in the preparation process of the adsorbents. When the mass ratio of silica gel, CMC, and carbon fiber powder is 4:1:4, the highest thermal conductivity of consolidated composite adsorbent obtained from experiments reaches 1.66W m(-1) K-1, which is 13.4 times greater than that of pure silica gel. Furthermore, the results of macroporous properties analysis of typical samples including SC20 and SCC20 (where the 20 means that the undried samples have a water content of 20% by mass during the preparation process) show that heat transfer additives effectively improve the macroporous porosity and permeability of the consolidated composite adsorbents. The study on adsorption dynamic performance indicates that the freeze-drying method helps to improve the adsorption performance including adsorption rate and equilibrium water uptake. The experimental results also show that the mass transfer coefficient K of the two typical samples are approximately stable at 5 x 10(-3) s(-1) when the adsorption temperature is ranged between 30 and 40 degrees C, which are almost twice the corresponding values of the samples developed by heating-drying method. Therefore, the proposed approach which is the consolidation with heat transfer additives combined with freeze-drying method is effective for simultaneously enhancing the heat and mass transfer performance of the silica gel adsorbents.
WOS关键词ADSORPTION COOLING SYSTEM ; ACTIVATED CARBON ; THERMAL-CONDUCTIVITY ; SORPTION REFRIGERATION ; PUMP APPLICATIONS ; PART I ; GEL ; ENHANCEMENT ; SORBENTS
资助项目Leading Key Projects of Chinese Academy of Sciences[QYZDY-SSW-JSC038] ; Science and Technology Planning Project of Guangdong Province, China[2016A050502040]
WOS研究方向Thermodynamics ; Engineering ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000447198400001
出版者TAYLOR & FRANCIS INC
资助机构Leading Key Projects of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province, China
源URL[http://ir.giec.ac.cn/handle/344007/24122]  
专题中国科学院广州能源研究所
通讯作者Huang, Hongyu; He, Zhaohong
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Nagoya Univ, Grad Sch Engn, Dept Chem & Biol Engn, Nagoya, Aichi, Japan
4.Kanazawa Univ, Div Mech Sci & Engn, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa, Japan
推荐引用方式
GB/T 7714		 Liu, Lin,Huang, Hongyu,He, Zhaohong,et al. The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method[J]. NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING,2018,22(4):255-269.
APA Liu, Lin.,Huang, Hongyu.,He, Zhaohong.,Li, Shijie.,Li, Jun.,...&Kobayashi, Noriyuki.(2018).The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method.NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING,22(4),255-269.
MLA Liu, Lin,et al."The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method".NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING 22.4(2018):255-269.

入库方式： OAI收割

来源：广州能源研究所

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