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Heat and Mass Transfer Characteristics of Evaporating Falling Films: Application to Thermal Protection and Desalination

Heat and Mass Transfer Characteristics of Evaporating Falling Films: Application to Thermal Protection and Desalination

Monssif Najim, M'barek Feddaoui, Abderrahman Nait Alla, Adil Charef
Copyright: © 2019 |Pages: 26
ISBN13: 9781522571384|ISBN10: 1522571388|EISBN13: 9781522571391
DOI: 10.4018/978-1-5225-7138-4.ch009
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MLA

Najim, Monssif, et al. "Heat and Mass Transfer Characteristics of Evaporating Falling Films: Application to Thermal Protection and Desalination." Process Analysis, Design, and Intensification in Microfluidics and Chemical Engineering, edited by Harrson Silva Santana, et al., IGI Global, 2019, pp. 251-276. https://doi.org/10.4018/978-1-5225-7138-4.ch009

APA

Najim, M., Feddaoui, M., Alla, A. N., & Charef, A. (2019). Heat and Mass Transfer Characteristics of Evaporating Falling Films: Application to Thermal Protection and Desalination. In H. Santana, J. Lameu da Silva Jr, & O. Taranto (Eds.), Process Analysis, Design, and Intensification in Microfluidics and Chemical Engineering (pp. 251-276). IGI Global. https://doi.org/10.4018/978-1-5225-7138-4.ch009

Chicago

Najim, Monssif, et al. "Heat and Mass Transfer Characteristics of Evaporating Falling Films: Application to Thermal Protection and Desalination." In Process Analysis, Design, and Intensification in Microfluidics and Chemical Engineering, edited by Harrson Silva Santana, João Lameu da Silva Jr, and Osvaldir Pereira Taranto, 251-276. Hershey, PA: IGI Global, 2019. https://doi.org/10.4018/978-1-5225-7138-4.ch009

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Abstract

This chapter presents a numerical investigation of heat and mass transfer characteristics during the evaporation of liquid films in vertical geometries. A two-phase model is developed to simulate laminar film evaporation into laminar gas flow. The liquid film evaporation is evaluated under adiabatic and heated wall conditions for both pure and binary liquid film. The model is based on a finite difference method to solve the governing equations of the two phases. The obtained results concerns two industrial processes. The first part of the chapter is devoted to the analysis of the thermal protection of vertical channel wall, while the second part is devoted to the desalination process by falling liquid film. The simulations results allowed the determination of the optimal operating conditions for both processes.

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