In-situ characterization of multi-phase flows in a dynamic scraped surface heat exchanger using optical techniques in the visible spectrum

2019 ◽  
Author(s):  
Carlos Acosta ◽  
Amar S. Bhalla ◽  
Ruyan Guo
Keyword(s):  
Heat Exchanger ◽  
Visible Spectrum ◽  
Surface Heat ◽  
In Situ Characterization ◽  
Optical Techniques ◽  
Scraped Surface Heat Exchanger ◽  
Multi Phase ◽  
Surface Heat Exchanger

Shear rates investigation in a scraped surface heat exchanger

2003 ◽  
Vol 58 (20) ◽  
pp. 4667-4679 ◽  
Author(s):  
Jérôme Mabit ◽  
Francine Fayolle ◽  
Jack Legrand
Keyword(s):  
Heat Exchanger ◽  
Surface Heat ◽  
Shear Rates ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger

Flow of Second Grade Fluid in a Scraped Surface Heat Exchanger

2016 ◽  
Vol 40 (2) ◽  
pp. e12393 ◽  
Author(s):  
A. Imran ◽  
M.A. Rana ◽  
A.M. Siddiqui ◽  
M. Shoaib
Keyword(s):  
Heat Exchanger ◽  
Surface Heat ◽  
Second Grade ◽  
Second Grade Fluid ◽  
Scraped Surface Heat Exchanger ◽  
Grade Fluid ◽  
Surface Heat Exchanger

scholarly journals Estimation of Ice Cream Mixture Viscosity during Batch Crystallization in a Scraped Surface Heat Exchanger

Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 167 ◽  
Author(s):  
Alejandro De la Cruz Martínez ◽  
Rosa E. Delgado Portales ◽  
Jaime D. Pérez Martínez ◽  
José E. González Ramírez ◽  
Alan D. Villalobos Lara ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Control Strategies ◽  
Coupled Model ◽  
Ice Cream ◽  
Surface Heat ◽  
Model Based ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger ◽  
Ice Fraction

Ice cream viscosity is one of the properties that most changes during crystallization in scraped surface heat exchangers (SSHE), and its online measurement is not easy. Its estimation is necessary through variables that are easy to measure. The temperature and power of the stirring motor of the SSHE turn out to be this type of variable and are closely related to the viscosity. Therefore, a mathematical model based on these variables proved to be feasible. The development of this mathematical relationship involved the rheological study of the ice cream base, as well as the application of a method for its in situ melting in the rheometer as a function of the temperature, and the application of a mathematical model correlating the SSHE stirring power and the ice cream viscosity. The result was a coupled model based on both the temperature and stirring power of the SSHE, which allowed for online viscosity estimation with errors below 10% for crystallized systems with a 30% ice fraction at the exit of the SSHE. The model obtained is a first step in the search for control strategies for crystallization in SSHE.

Multivariate optimization and sensitivity analyses of relevant parameters on efficiency of scraped surface heat exchanger

2020 ◽  
Vol 178 ◽  
pp. 115445
Author(s):  
Ahmad Hajatzadeh Pordanjani ◽  
Seyed Masoud Vahedi ◽  
Saeed Aghakhani ◽  
Masoud Afrand ◽  
Omid Mahian ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Surface Heat ◽  
Sensitivity Analyses ◽  
Multivariate Optimization ◽  
Scraped Surface Heat Exchanger ◽  
Surface Heat Exchanger
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