Upstream installation and misalignment effects on the performance of a modified electromagnetic flowmeter |
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| Affiliation: | 1. CSIR-National Physical Laboratory, New Delhi 110012, India;2. Thapar University, Patiala 147004, India;1. Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000, São Paulo, SP, Brazil;2. Nuclear and Energy Research Institute (IPEN-CQMA), 05508-000, São Paulo, SP, Brazil;3. Department of Chemistry, Federal University of Paraiba, 58051-970, João Pessoa, PB, Brazil;4. Department of Fundamental Chemistry, Federal University of Pernambuco, 50670-901, Recife, PE, Brazil;1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China;2. Nanjing Vocational University of Industry Technology, Nanjing 211106, China;3. Department of Chemical and Process Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom;4. Changzhou University, Changzhou 213016, China;1. Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science (ISAS), Japan;2. Iwatani Corporation, Japan;1. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan;2. Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan |
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| Abstract: | The performance of a modified Danfoss 50 mm diameter electromagnetic flowmeter has been investigated when installed downstream from three different pipe diameters—50 mm, 55 mm and 45 mm. The effects of a 3 mm misalignment of the flowmeter, in both the vertical and horizontal planes, with respect to each of the three upstream pipe diameters has also been identified. The largest percentage errors are reported for the 45 mm upstream diameter pipe, with the flowmeter misaligned by 3 mm in the horizontal plane. The vertical and horizontal mean velocity and root-mean-square velocity profiles, measured within the flowmeter using laser Doppler anemometry, show significant variations in comparison with the ideal, fully developed profiles. |
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