Design Aspect of Scraper Blade Assembly for Enhancing Film Heat Transfer Coefficient of Scraped Surface Heat Exchanger

2016 ◽  
Vol 40 (2) ◽  
pp. e12408
Author(s):  
Dhruv Juyal ◽  
I.K. Sawhney ◽  
A.K. Dodeja ◽  
P.S. Minz
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Heat Exchanger ◽  
Transfer Coefficient ◽  
Surface Heat ◽  
Scraped Surface Heat Exchanger ◽  
Blade Assembly ◽  
Film Heat Transfer ◽  
Surface Heat Exchanger ◽  
Design Aspect

Study of the Influence of Geometric Parameters in an Innovative Scraped Surface Heat Exchanger With Helical Ribbon

2020 ◽  
Vol 12 (5) ◽  
Author(s):  
Sirine Ali ◽  
Mounir Baccar
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Heat Exchanger ◽  
Transfer Coefficient ◽  
Surface Heat ◽  
Ribbon Width ◽  
Thermal Behaviors ◽  
Helical Ribbon ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger

Abstract This work aims to characterize the hydrodynamic and thermal behaviors in an innovative scraped surface heat exchanger (SSHE) equipped with helical ribbon by means of the numerical simulation approach. In this study, the conservation equations of continuity, momentum, and energy in the laminar, steady-state and isothermal conditions are resolved using a specific computational fluid dynamics (CFD) code based on the 3D finite volume method. The effects of the gap between the exchanger wall and the tip of the ribbon, the ribbon width, and the number of turns in the ribbon on the hydrodynamic and thermal behaviors are studied. Varying the gap values leads to reveal an optimum value giving the highest heat transfer coefficient. Moreover, numerical results have shown that increasing the ribbon width improves the heat transfer. Furthermore, the influence of the number of turns is carried out for Reynolds number ratios (Rer/Rea) inferior and superior to 1. Results revealed that increasing the number of turns avoids the back-mixing phenomenon and thus improves the heat transfer. In this study, the establishment of correlation is determined with the introduction of dimensionless and geometrical groups to predict the heat transfer coefficient in SSHE.

scholarly journals Modeling flow and heat transfer in a scraped surface heat exchanger during the production of sorbet

2018 ◽  
Vol 221 ◽  
pp. 54-69 ◽  
Author(s):  
Oscar Darío Hernández-Parra ◽  
Artemio Plana-Fattori ◽  
Graciela Alvarez ◽  
Fatou-Toutie Ndoye ◽  
Hayat Benkhelifa ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Surface Heat ◽  
Flow And Heat Transfer ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger ◽  
Modeling Flow

scholarly journals Heat Transfer in a Scraped Surface Heat Exchanger

1987 ◽  
Vol 34 (9) ◽  
pp. 559-566 ◽  
Author(s):  
Haruyoshi YAMAMOTO ◽  
Kensuke ITOH ◽  
Shin'ichi TANEYA ◽  
Yukio SOGO
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Surface Heat ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger

Heat transfer with freezing in a scraped surface heat exchanger

2005 ◽  
Vol 25 (1) ◽  
pp. 45-60 ◽  
Author(s):  
Mohamed Ben Lakhdar ◽  
Rosalia Cerecero ◽  
Graciela Alvarez ◽  
Jacques Guilpart ◽  
Denis Flick ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Surface Heat ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger
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