درباره کتاب Unit Operations of Chemical Engineering
بخشی از پیشگفتار کتاب Unit Operations of Chemical Engineering نوشته Warren L. McCabe از انتشارات نوپردازان:
The seventh edition of this text on the unit operations of chemical engineering contains much new material and many additional problems, but the basic structure, general level of treatment, and overall length are largely unchanged. This is an introductory text, written for undergraduates in their junior or senior year who have completed the usual courses in mathematics, chemistry, physics, and an introduc- tion to chemical engineering. An elementary knowledge of material and energy bal- ances is assumed. Because it contains up-to-date correlations for heat transfer, mass transfer, and equipment design, this text should also be useful to chemists and engi- neers in industry.
Separate chapters are devoted to each of the principal unit operations, grouped into four sections: fluid mechanics, heat transfer, mass transfer and related separations, and operations involving particulate solids. One-semester courses may be based on any of these sections or combinations of them. Bioengineering is nor of food processing, bioseparations, and diffusion in biological systems are included in various chapters.
Nearly all equations are written for SI units, but the older cgs and fps systems have not been completely eliminated. Chemical engineers must be familiar with all three systems of units. Most of the equations are dimensionless and may be used with any set of consistent units.
NEW TO THIS EDITION
Thirty percent of the end-of-chapter problems are new or revised for this edition. Nearly all the problems can be solved with the aid of a pocket calculator, but for a few, a computer solution is preferable.
The section on fluid viscosity in Chap. 3 is expanded to include simple theories for gases and liquids. In later chapters, similar theories for thermal conductivity and diffusivity are discussed and comparisons made.
The analogies among momentum transfer, diffusion, and heat conduction are given more emphasis, and the section on transient diffusion is expanded to in- clude an example of controlled-release drug delivery.
New material in Chap. 25 deals with the use of powdered carbon to treat. waste in tanks, and expanded-bed adsorption that can be used for purification of fermentation broths.
Chapter 29 has a new section on diafiltration, a process often used in protein purification. There is also an expanded treatment of ultrafiltration and microfil- tration of protein and polymer solutions.
The discussion of filter cake washing is completely revised and a plot of some data is included.
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