Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
MODEL VALIDATION OF A FALLING FILM EVAPORATION PROCESS ON A VERTICAL TUBE USING SUBCOOLEDWATER
Submission Author:
Matheus Buss , SC
Co-Authors:
Matheus Buss, Júlio Passos, Stijn Janssen, Bart van Esch
Presenter: Matheus Buss
doi://10.26678/ABCM.ENCIT2020.CIT20-0505
Abstract
Falling Film Evaporators (FFE) are used by a wide range of industrial sectors because of their high heat transfer rate per unit of surface area while maintaining a relatively low temperature difference between surface and liquid. This allows more compact system designs and thereby reduces material costs. Although they have been used for decades the design of these evaporators is still mostly based on estimates and empirical data. The available literature is reviewed as foundation for the mathematical model made for a vertical FFE design using subcooled water. Dimensionless numbers are used to fundamentally compare its results with literature. Additionally, simulations are performed to validate the model. An experimental setup of a vertical FFE was built in LEPTEN, at UFSC. An overview of its construction and improvements is provided. This setup is used as a basis for the model, which means it can be used to validate the theory in future works.
Keywords
Vertical Falling Film Evaporator, Heat and mass transfer, Modelica modeling, Subcooled water, Evaporation
DOWNLOAD PDF VIEW PRESENTATION
