Commenced in January 2007
Paper Count: 32017
Performance Study of Scraped Surface Heat Exchanger with Helical Ribbons
Abstract:In this work, numerical simulations were carried out using a specific CFD code in order to study the performance of an innovative Scraped Surface Heat Exchanger (SSHE) with helical ribbons for Bingham fluids (threshold fluids). The resolution of three-dimensional form of the conservation equations (continuity, momentum and energy equations) was carried out basing on the finite volume method (FVM). After studying the effect of dimensionless numbers (axial Reynolds, rotational Reynolds and Oldroyd numbers) on the hydrodynamic and thermal behaviors within SSHE, a parametric study was developed, by varying the width of the helical ribbon, the clearance between the stator wall and the tip of the ribbon and the number of turns of the helical ribbon, in order to improve the heat transfer inside the exchanger. The effect of these geometrical numbers on the hydrodynamic and thermal behaviors was discussed.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1128219Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 995
 R. De Goede, E.J. De Jong, Heat transfer properties of scraped-surface heat exchanger in the turbulent flow regime, Chem. Eng. Sci. 48 (1993) 1393-1404.
 M. Baccar, M.S. Abid, Numerical analysis of three-dimensional flow and thermal behavior in a scraped-surface heat exchanger, Rev. Gen. Therm. 36 (1997) 782-790.
 M. Örvös, T. Balazs, K.F. Both, and I. Csury, Investigation of heat transfer conditions in scraped surface heat exchanger, Periodica Polytechnica Ser. Mech. Eng. 98 (1994) 129-198.
 M. Ben Lakhdar, R. Cerecero, G. Alvarez, J. Guilpart, D. Filck, and A. Lallemand, Heat transfer with freezing in a scraped surface heat exchanger, Applied Thermal Engineering 25 (2005) 45-60.
 D. S. Martinez, J.P. Solano, J. Pérez, A. Viedma, Numerical investigation of non-Newtonian flow and heat transfer in tubes of heat exchangers with reciprocating insert devices, Frontiers in Heat and Mass Transfer, 2, 033002, DOI: 10.5098. v2.3.3002 (2011).
 M. Yataghene, J. Legrand, A 3D-CFD model thermal analysis within a scraped surface heat exchanger, Computer & Fluids 71 (2013) 380-399.
 G. Boccardi, G.P. Celata, R. Lazzarini, R. Saraceno, and R. Trinchieri, Development of a heat transfer correlation for a scraped-surface heat exchanger, Applied Thermal Engineering 30 (2010) 1101-1106.
 S. Ali, M. Baccar, Numerical study of hydrodynamic and thermal behaviors in a scraped surface heat exchanger with helical ribbons, Applied Thermal Engineering 111 (2017) 1069-1082.
 A. M. Trommelen, W.J. Beek, Flow phenomena in scraped-surface heat exchanger, Chem. Eng. Sci. 26 (1971) 1933-1942.
 E. Mitsoulis, Flows of viscoplastic materials: models and computations, Rheology Reviews (2007) 135-178.