Effect of particle diameter and particle axial distribution on heat and mass transfer inside adsorption heat transformer
[1]Sheng Zunrong,Xue Bing,Liu Zhouming,et al.Effect of particle diameter and particle axial distribution on heat and mass transfer inside adsorption heat transformer[J].Journal of Zhengzhou University (Engineering Science),2017,38(04):17-22.[doi:10.3969/j.issn.1671-6833.2017.01.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38
Number of periods:
2017 04
Page number:
17-22
Column:
Public date:
2017-07-18
- Title:
- Effect of particle diameter and particle axial distribution on heat and mass transfer inside adsorption heat transformer
- CLC:
- -
- DOI:
- 10.3969/j.issn.1671-6833.2017.01.011
- Abstract:
- A direct-contact method of zeolite adsorption liquid water was adopted to enhance heat and mass transfer rate within adsorption heat transformer.Hot water was recycled to generate superheated steam directly,and then saturated zeolite would be regenerated by drying gas.The reactor with was filled spherical zeolite with same mass and different diameters.The mass of steam generated by small particle packed bed was 64.89％ higher than that generated by big particle packed bed.The maximum steam temperature and gross temperature life had increased by about 37C.Experiments of two kinds of packed types in double layer reactor (finecoarse bed and coarse-fine bed) have shown that small particle played a more effective role for the heating of steam and packed bed;the mean maximum temperature of the steam at the top of fine-coarse bed is 37.23％ higher than that of coarse-fine bed and the lasting time of the maximum temperature is decreased by 14.25％.The steam generation rate of fine-coarse bed was 16.18％ higher than that of coarse-fine bed,which is more efficient in steam generation.In regeneration process,drying time of upper reactor was 25.03％ shorter than coarse-fine bed.It concluded that fine-coarse bed was more effective for zeolite regeneration.
- References:
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