Numerical and experimental study of an innovative pipeline design in a granular pneumatic-conveying system |
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| Institution: | 1. Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran;2. Department of Chemical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran;1. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Göteborg, Sweden;2. Department of Applied Mechanics, Chalmers University of Technology, SE-412 96, Göteborg, Sweden;1. Institute for Chemicals and Fuels from Alternative Resources, Western University, 22312 Wonderland Rd., Ilderton, ON, N0 M2AO, Canada;2. Edmonton Research Centre, Syncrude Canada Ltd, 9421 17th Ave, Edmonton, AB, T6N 1H4, Canada;3. The Petroleum Institute, PO Box 2533, Abu Dhabi, UAE;1. School of Physics and Materials Science, Thapar University, Patiala, Punjab 147004, India;2. Department of Mechanical Engineering, Thapar University, Patiala, Punjab 147004, India;3. Fujian Longking Co., Ltd., Longyan, Fujian 364000, China;1. Consiglio per la Ricerca in Agricoltura e l''analisi dell’Economia agraria (CREA), Unità di Ricerca per le Produzioni Legnose fuori Foresta (PLF), Strada Frassineto Po 35, 15033, Casale Monferrato, Alessandria, Italy;2. University of Turin, Via Leonardo da Vinci, 44, 10095, Grugliasco, Torino, Italy;1. School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China;2. State Key Lab for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, PR China;1. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;2. School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China |
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| Abstract: | During gas–solid mixture conveying in a dense phase, material is conveyed in dunes on the bottom of the pipeline, or as a pulsating moving bed. This phenomenon increases the pressure drop and power consumption. We introduce a new technique to reduce the pressure drop, which is termed the perforated double tube. To validate this new model, the gas–solid flow pattern and pressure drop were studied numerically and experimentally. The power consumption was also studied experimentally. Numerical studies were performed by the Eulerian–Lagrangian approach to predict gas and particle movement in the pipeline. Comparisons between the numerical predictions and the experimental results for the gas–solid flow patterns and pressure drop show good agreement. |
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| Keywords: | Computational fluid dynamics Power consumption Perforated double tube Pneumatic conveying |
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