eprintid: 1229 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/12/29 datestamp: 2023-11-09 15:49:23 lastmod: 2023-11-09 15:49:23 status_changed: 2023-11-09 15:39:16 type: article metadata_visibility: show creators_name: Regupathi, I. creators_name: JagadeeshBabu, P.E. creators_name: Chitra, M. creators_name: Murugesan, T. title: Drag reduction in co-current down flow packed column using xanthan gum ispublished: pub note: cited By 4 abstract: Drag reduction is one of the most important techniques for reducing energy consumption in a packed bed contactor. The present work involves an experimental investigation on flow regime transition for air-water system with and without drag reducing agent (DRA), two-phase pressure drop, friction factor and drag reduction using xanthan gum as DRA. Drag reduction was quantified from the two-phase pressure drop data. Based on the present observations it was found that the percentage drag reduction increases with an increase in the concentration of DRA and it is only effective in the range of 300 ppm to 800 ppm. The experimental results indicate that a maximum of 80 drag reduction was achievable using xanthan gum (800 ppm) as DRA. Furthermore, the experimental data were validated with the available literature correlations. © 2010 Korean Institute of Chemical Engineers, Seoul, Korea. date: 2010 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77954427035&doi=10.1007%2fs11814-010-0181-z&partnerID=40&md5=3837553589d40fc4c5391c8030d8c026 id_number: 10.1007/s11814-010-0181-z full_text_status: none publication: Korean Journal of Chemical Engineering volume: 27 number: 4 pagerange: 1205-1212 refereed: TRUE issn: 02561115 citation: Regupathi, I. and JagadeeshBabu, P.E. and Chitra, M. and Murugesan, T. (2010) Drag reduction in co-current down flow packed column using xanthan gum. Korean Journal of Chemical Engineering, 27 (4). pp. 1205-1212. ISSN 02561115