Bhattacharyya, SuvanjanBenim, Ali CemalChattopadhyay, HimadriBanerjee, Arnab2020-02-032020-02-032019Suvanjan Bhattacharyya, Ali Cemal Benim, Himadri Chattopadhyay & Arnab Banerjee (2019) Experimental investigation of heat transfer performance of corrugated tube with spring tape inserts, Experimental Heat Transfer, 32:5, 411-425, DOI: 10.1080/08916152.2018.1531955.0891-6152 (print)1521-0480 (online)10.1080/08916152.2018.1531955http://hdl.handle.net/2263/73072Turbulent forced convection in a corrugated tube with spring tape is investigated experimentally, for Reynolds numbers from 10,000 to 50,000. The working fluid is air. Experiments are performed for different pitch and spring ratios. Results show that Nusselt numbers can be increased considerably, depending on pitch and spring ratios. An overall assessment, considering the friction losses, is achieved using the thermo-hydraulic performance parameter. The latter is observed to take values larger than unity for all cases, where quite high values around 2.8 occur for cases with smallest pitch and spring ratios. Predictive Nusselt number and friction factor correlations are proposed.en© 2018 Taylor & Francis. This is an electronic version of an article published in Experimental Heat Transfer, vol. 32, no. 5, pp. 411-425, 2019. doi : 10.1080/08916152.2018.1531955. Experimental Heat Transfer is available online at : http://www.tandfonline.com/loi/ueht20.Heat transfer enhancementCorrugated tubeSpring tapeEngineering, built environment and information technology articles SDG-07SDG-07: Affordable and clean energyEngineering, built environment and information technology articles SDG-09SDG-09: Industry, innovation and infrastructureEngineering, built environment and information technology articles SDG-13SDG-13: Climate actionEngineering, built environment and information technology articles SDG-04SDG-04: Quality educationPostprint Article