Volume 11, Issue 6

Adv. Appl. Math. Mech., 11 (2019), pp. 1436-1460.

Published online: 2019-09

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• Abstract

Air flow distribution in radial flow adsorber was numerically investigated using computational fluid dynamics (CFD) method, which was proved to be applicable to study the problem of non-uniform distribution in radial flow adsorber. Results showed that the degree of non-uniformity was more serious in desorption process than that is adsorption process. Therefore, it was considered that the non-uniform distribution of flow in a radial flow adsorber was mainly manifested in the desorption process. Optimum design of distributor parameters can improve the flow distribution in adsorber. Meanwhile, three different structures of distributor and the effect of breathing valve were analyzed. Results revealed that truncated cone is more effective than tubular and conical distributors in flow distribution. By inserting the truncated cone in central channel, desorption uniformity was increased by 6.56% and the breakthrough time of CO$_2$ was extended from 564s to 1138s in the adsorption process. The "dead zone" problem at the top of adsorber during the desorption process was solved by opening breathing valve, which prolonged the working life of adsorber and was proved to have less effect on the uniform of airflow.

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@Article{AAMM-11-1436, author = {Yongliang and Chen and and 5204 and College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Yongliang Chen and Yao and Li and and 5205 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Yao Li and Haiqing and Si and and 5206 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Haiqing Si and Bing and Wang and and 5207 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Bing Wang and Haibo and Wang and and 5208 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Haibo Wang and Yingying and Shen and and 5209 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Yingying Shen and Ziqiang and Qin and and 5211 and College of Civil Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China and Ziqiang Qin}, title = {Numerical Investigation into the Distributor Design in Radial Flow Adsorber}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2019}, volume = {11}, number = {6}, pages = {1436--1460}, abstract = {

Air flow distribution in radial flow adsorber was numerically investigated using computational fluid dynamics (CFD) method, which was proved to be applicable to study the problem of non-uniform distribution in radial flow adsorber. Results showed that the degree of non-uniformity was more serious in desorption process than that is adsorption process. Therefore, it was considered that the non-uniform distribution of flow in a radial flow adsorber was mainly manifested in the desorption process. Optimum design of distributor parameters can improve the flow distribution in adsorber. Meanwhile, three different structures of distributor and the effect of breathing valve were analyzed. Results revealed that truncated cone is more effective than tubular and conical distributors in flow distribution. By inserting the truncated cone in central channel, desorption uniformity was increased by 6.56% and the breakthrough time of CO$_2$ was extended from 564s to 1138s in the adsorption process. The "dead zone" problem at the top of adsorber during the desorption process was solved by opening breathing valve, which prolonged the working life of adsorber and was proved to have less effect on the uniform of airflow.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2019-0001}, url = {http://global-sci.org/intro/article_detail/aamm/13311.html} }
TY - JOUR T1 - Numerical Investigation into the Distributor Design in Radial Flow Adsorber AU - Chen , Yongliang AU - Li , Yao AU - Si , Haiqing AU - Wang , Bing AU - Wang , Haibo AU - Shen , Yingying AU - Qin , Ziqiang JO - Advances in Applied Mathematics and Mechanics VL - 6 SP - 1436 EP - 1460 PY - 2019 DA - 2019/09 SN - 11 DO - http://doi.org/10.4208/aamm.OA-2019-0001 UR - https://global-sci.org/intro/article_detail/aamm/13311.html KW - CFD method, air separation, radial flow adsorber, adsorption, desorption. AB -

Air flow distribution in radial flow adsorber was numerically investigated using computational fluid dynamics (CFD) method, which was proved to be applicable to study the problem of non-uniform distribution in radial flow adsorber. Results showed that the degree of non-uniformity was more serious in desorption process than that is adsorption process. Therefore, it was considered that the non-uniform distribution of flow in a radial flow adsorber was mainly manifested in the desorption process. Optimum design of distributor parameters can improve the flow distribution in adsorber. Meanwhile, three different structures of distributor and the effect of breathing valve were analyzed. Results revealed that truncated cone is more effective than tubular and conical distributors in flow distribution. By inserting the truncated cone in central channel, desorption uniformity was increased by 6.56% and the breakthrough time of CO$_2$ was extended from 564s to 1138s in the adsorption process. The "dead zone" problem at the top of adsorber during the desorption process was solved by opening breathing valve, which prolonged the working life of adsorber and was proved to have less effect on the uniform of airflow.

Yongliang Chen, Yao Li, Haiqing Si, Bing Wang, Haibo Wang, Yingying Shen & Ziqiang Qin. (2019). Numerical Investigation into the Distributor Design in Radial Flow Adsorber. Advances in Applied Mathematics and Mechanics. 11 (6). 1436-1460. doi:10.4208/aamm.OA-2019-0001
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