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https://doi.org/10.1177/16878140211049029
Title: | Investigation of particles deposition in a square duct using optimized roughness elements for a sustainable environment | Authors: | Farhan, Muhammad Rizwan, Hafiz M. Farooq, Muhammad Riaz, Fahid Tahir, Zia Ul Rehman Sultan, Muhammad Siddiqui, Farrukh A. Javaid, Muhammad Yasar Ali, Qasim Zahid, Imran |
Keywords: | deposition of particles numerical investigation Particulate flow Reynolds stress model roughness elements |
Issue Date: | 1-Sep-2021 | Publisher: | SAGE Publications Inc. | Citation: | Farhan, Muhammad, Rizwan, Hafiz M., Farooq, Muhammad, Riaz, Fahid, Tahir, Zia Ul Rehman, Sultan, Muhammad, Siddiqui, Farrukh A., Javaid, Muhammad Yasar, Ali, Qasim, Zahid, Imran (2021-09-01). Investigation of particles deposition in a square duct using optimized roughness elements for a sustainable environment. Advances in Mechanical Engineering 13 (9). ScholarBank@NUS Repository. https://doi.org/10.1177/16878140211049029 | Rights: | Attribution 4.0 International | Abstract: | A sustainable environment is one of the major challenges in developing countries especially in populated regions due to the industrialization and expansion of urban areas. The industries emit particulate matter into the atmosphere that is harmful to human health. There is a need for an efficient particle separation mechanism to improve indoor air quality. This paper presents a numerical investigation of particles deposition in a square duct with variable roughness elements. The working fluid was taken as a mixture of air and inert particles. The Reynolds Stress Model (RSM) and Discrete Particle-phase Model (DPM) were used to simulate the particle-laden flow to analyze the deposition and velocity of the particles in the duct. The diameter of the particles is taken as 5 µm. The ratio of roughness height to the diameter (r/D) ranged from 0.024 and 0.101 and the spacing to the diameter ratio (s/D) varied between 9.8 and 39.23. It was found that the roughness height has a significant effect on the fluid flow as compared to the spacing between the elements. As a result, more uniform vortices are developed across the elements increasing fluid velocity from 10 to 14 m/s, while the deposition and velocity of the particles were increased by 14% and 8%, respectively. Accordingly, the particles deposition technique helps provide clean indoor air for better environmental sustainability. © The Author(s) 2021. | Source Title: | Advances in Mechanical Engineering | URI: | https://scholarbank.nus.edu.sg/handle/10635/233778 | ISSN: | 1687-8132 | DOI: | 10.1177/16878140211049029 | Rights: | Attribution 4.0 International |
Appears in Collections: | Staff Publications Elements |
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