Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method | |
Liu, Lin1,2; Huang, Hongyu1; He, Zhaohong1 ; Li, Shijie1,2; Li, Jun3; Chen, Jiechao1; Deng, Lisheng1; Osaka, Yugo4; Kobayashi, Noriyuki3
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| 2018 | |
| Source Publication | NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING
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| ISSN | 1556-7265 |
| Volume | 22Issue:4Pages:255-269 |
| Corresponding Author | Huang, Hongyu(huanghy@ms.giec.ac.cn) ; He, Zhaohong(hezh@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | Silica gel consolidated composite adsorbents heat and mass transfer freeze-drying method |
| DOI | 10.1080/15567265.2018.1490938 |
| WOS Keyword | ADSORPTION COOLING SYSTEM ; ACTIVATED CARBON ; THERMAL-CONDUCTIVITY ; SORPTION REFRIGERATION ; PUMP APPLICATIONS ; PART I ; GEL ; ENHANCEMENT ; SORBENTS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Leading Key Projects of Chinese Academy of Sciences[QYZDY-SSW-JSC038] ; Science and Technology Planning Project of Guangdong Province, China[2016A050502040] |
| WOS Research Area | Thermodynamics ; Engineering ; Science & Technology - Other Topics ; Materials Science ; Physics |
| Funding Organization | Leading Key Projects of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province, China |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Nanoscience & Nanotechnology ; Materials Science, Characterization & Testing ; Physics, Applied |
| WOS ID | WOS:000447198400001 |
| Publisher | TAYLOR & FRANCIS INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/24123 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Huang, Hongyu; He, Zhaohong |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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