Mass Transfers and Physical Data Estimation

Abdelhanine Benallou

• Publisher: Wiley
• Year: 2019
• Print ISBN: 9781786302854
• eBook ISBN: 9781119663300
• Edition: 1
• Topic: Physical Sciences
• Subtopic: Thermodynamics

Many practical operations, such as environment depollution, blood dialysis or product purification, require matter transfer. With an emphasis on the aforementioned subjects, this book revisits the founding principles of materials transfer on the basis of Fick's first law, which constitutes the foundation of diffusional phenomena. Additionally, continuity equations translating the macroscopic balances of systems are established. These balances constitute Fick's second law, which can be applied to quantify the fluxes of matter transferred in each situation, provided physical data is available. To this end, Mass Transfers and Physical Data Estimation pays particular attention to methods of data estimation. Methods presented in this book are applied to several practical cases, such as diffusion in catalytic reactions or the reconstitution of cartilage in human bone joints.

1
Determination of Physical Data

1.1. Introduction

In engineering calculations, the availability of reliable data on the physicochemical properties of the materials used is of crucial importance. When these materials or components are fairly common, the values of these data can be directly found, in the literature, in tables generally established from experimental data.

Whilst for the most common materials these values are easily accessible, this is not the case for new materials, nor for unusual components.

For this reason, when searching for physical data, we will of course give priority to tabulated values when these can be found. A collection of such data – including those most commonly used in transfer processes – is presented in Appendix 1. However more extensive data can be found, where applicable, in the specialized literature (Sherwood, 1966; Chilton, 1973, etc.).

Yet, in certain cases commonly encountered in engineering calculations, the data sought are not found in the tables. Under these conditions, it will be necessary to use data estimation methods developed by various authors. These often consist of correlations that have been established from experimental data. As a result, they do not give precise values, but rather estimations that present a given degree ...

Table of contents

• Cover
• Preface
• Introduction
• 1 Determination of Physical Data
• 2 Determinants and Parameters of Mass Transfer
• 3 Fick’s First Law: Diffusion Coefficients
• 4 Fick’s Second Law: Macroscopic Balances
• 5 Exercises and Solutions
• Appendices
• References
• Index
• End User License Agreement