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| Formation process and fractal growth model of HCFC-141b refrigerant gas hydrate | |
| 作者姓名： | 赵永利 郭开华 梁栋 樊栓狮 刘晓聪 舒碧芬 葛新石 刘勇 |
| 作者单位： | ZHAO Yongli，GUO Kaihua LIANG DongFAN Shuanshi LIU Xiaocong SHU BifenGE Xinshi & LIU YongGuangzhou Institute of Energy Conversion，Chinese Academy of Sciences，Guangzhou 510070，China;University of Science and Technology of |
| 基金项目： | This work was supported by the National Natural Science Foundation of China (Grant Nos. 59836230 and 59706001)，the Major State Basic Research Program (Grant No. G2000026306). |
| 摘 要： | The microscopic visualization experiment on the formation process of HCFC-141b refrigerant gas hydrate has been investigated, and the morphological photos of hydrate formation process have been obtained. The results show that gas hydrate originally nucleated on the interface of refrigerant HCFC-141b and water under the condition of supercooling, then the hydrate grows continually due to the inducement of formed nucleation and diffusion of refrigerant. The formation of gas hydrate presents an arboreous phenomenon. The fractal dimension of the hydrate formation morphology on different stages was calculated. The calculating results indicate that the initial stage of the hydrate formation belongs to fractal growth, and the dimension is about 1.52. Based on the fractal theory, an RIN-DLA (random inducement nucleation-diffusion limited aggregation) model for the HCFC-141b hydrate growth was developed. The hydrate growth process was simulated with the developed model, and the fractal dimension for the simulated |
Formation process and fractal growth model of HCFC-141b refrigerant gas hydrate |
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| ZHAO Yongli,GUO Kaihua LIANG DongFAN Shuanshi LIU Xiaocong SHU BifenGE Xinshi & LIU YongGuangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou ,China,University of Science and Technology of.Formation process and fractal growth model of HCFC-141b refrigerant gas hydrate[J].Science in China(Chemistry),2002,45(2). | |
| Authors: | ZHAO Yongli GUO Kaihua LIANG DongFAN Shuanshi LIU Xiaocong SHU BifenGE Xinshi & LIU YongGuangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou China University of Science and Technology of |
| Institution: | 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510070, China;University of Science and Technology of China, Hefei 430070, China 2. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510070, China 3. University of Science and Technology of China, Hefei 430070, China |
| Abstract: | The microscopic visualization experiment on the formation process of HCFC-141b refrigerant gas hydrate has been investigated, and the morphological photos of hydrate formation process have been obtained. The results show that gas hydrate originally nucleated on the interface of refrigerant HCFC-141b and water under the condition of supercooling, then the hydrate grows continually due to the inducement of formed nucleation and diffusion of refrigerant. The formation of gas hydrate presents an arboreous phenomenon. The fractal dimension of the hydrate formation morphology on different stages was calculated. The calculating results indicate that the initial stage of the hydrate formation belongs to fractal growth, and the dimension is about 1.52. Based on the fractal theory, an RIN-DLA (random inducement nucleation-diffusion limited aggregation) model for the HCFC-141b hydrate growth was developed. The hydrate growth process was simulated with the developed model, and the fractal dimension for the simulated morphology is well compared with that from the experiment. |
| Keywords: | refrigerant gas hydrate formation process fractal growth dimension RIN-DLA model |
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