Pourahmad, SamanPesteei, Seyed MehdiMehrabi, Mehdi2019-08-072019Saman Pourahmad, Seyed Mehdi Pesteei & Mehdi Mehrabi (2019) The effect of geometrical characteristics of wavy strip turbulator and thermodynamic properties of fluid on exergy loss and heat transfer in a tube in tube heat exchanger, Experimental Heat Transfer, 32:4, 393-409, DOI: 10.1080/08916152.2018.1526229.0891-6152 (print)1521-0480 (online)10.1080/08916152.2018.1526229http://hdl.handle.net/2263/70903The present work conducts an experimental investigation into the influence of flow, thermodynamic and geometrical characteristics of the wavy strip on exergy loss and dimensionless exergy loss in a tube in tube heat exchanger. The working fluid is water with hot water passing the inner tube and cold water passing annulus. Wavy strips with four different angles and three widths were investigated experimentally. The result of exergy loss and dimensionless exergy loss for various conditions is presented and on the basis of curve fitting, three empirical correlations are suggested to predict dimensionless exergy loss in a double tube heat exchanger.en© 2018 Taylor & Francis. This is an electronic version of an article published in Experimental Heat Transfer, vol. 32, no. 4, pp. 393-409, 2019. doi : 10.1080/08916152.2018.1526229. Experimental Heat Transfer is available online at : http://www.tandfonline.com/loi/ueht20.Tube in tube heat exchangerWavy stripExergy analysesEffectivenessEngineering, 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 actionPostprint Article