Mostrando postagens com marcador Engenharia. Mostrar todas as postagens
Mostrando postagens com marcador Engenharia. Mostrar todas as postagens

quarta-feira, 4 de maio de 2011

Handbook of Food Engineering Practice

Handbook of Food Engineering Practice


by: Kenneth J. Valentas, Enrique Rotstein, R. Paul Singh

Handbook of Food Engineering Practice  library.nu #268050

md5: 36d0d689a8327597256e89372f3a656d
size: 14.36 MB [ 15055001 bytes ]
type: .pdf
status: normal
language: en [ english ]
submitted by: anonymous


0849386942
9780849386947

metadata: ( ? )

year: 1997
pages: 699
bookmarked: yes
paginated: no
cover: yes
searchable: yes
lcc: TP370.4.H37 1997
ddc: 664



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Food engineering has become increasingly important in the food industry over the years, as food engineers play a key role in developing new food products and improved manufacturing processes. While other textbooks have covered some aspects of this emerging field, this is the first applications-oriented handbook to cover food engineering processes and manufacturing techniques.A major portion of Handbook of Food Engineering Practice is devoted to defining and explaining essential food operations such as pumping systems, food preservation, and sterilization, as well as freezing and drying. Membranes and evaporator systems and packaging materials and their properties are examined as well. The handbook provides information on how to design accelerated storage studies and determine the temperature tolerance of foods, both of which are important in predicting shelf life. The book also examines the importance of physical and rheological properties of foods, with a special look at the rheology of dough and the design of processing systems for the manufacture of dough.The final third of the book provides useful supporting material that applies to all of the previously discussed unit operations, including cost/profit analysis methods, simulation procedures, sanitary guidelines, and process controller design. The book also includes a survey of food chemistry, a critical area of science for food engineers.

sábado, 30 de abril de 2011

Harmonics and Power Systems (Electric Power Engineering)









Harmonics and Power Systems (Electric Power Engineering)

by: Francisco C. De La Rosa








Harmonics and Power Systems (Electric Power Engineering)  library.nu #383870






















md5: 127ae4fce40e10009992ab931900b74a
size: 8.04 MB [ 8426481 bytes ]
type: .pdf
status: normal
language: en [ english ]
submitted by: anonymous


0849330165
9780849330162












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description: ( ? )







Harmonics and Power Systems (Electric Power Engineering)
By Francisco C. De La Rosa







  • Publisher: CRC

  • Number Of Pages: 208

  • Publication Date: 2006-05-22

  • ISBN-10 / ASIN: 0849330165

  • ISBN-13 / EAN: 9780849330162

  • Binding: Hardcover





Book Description:

Harmonics have always been a problem with industrial loads, but now more and more consumer and commercial power loads are cropping up as sources of harmonic currents. Approaching the problem from both utility and end-user perspectives, Harmonics and Power Systems addresses the most relevant aspects in the generation and propagation of harmonic currents in electrical networks. Grounded in years of practical experience working and teaching in the electric, oil, and steel industries in several countries to address the harmonics problem, De La Rosa elucidates the concepts and equations with worked examples and various illustrations generated using current industrial software tools. From a general overview of the principles and equations used to describe and analyze harmonic currents to the fundamentals of power losses in harmonic environments, this field-tested book offers detailed coverage of passive harmonic filters, harmonic propagation analysis, and alternatives to filtering. The author provides a clear-cut procedure for evaluating harmonic current propagation and assessing their penetration into electrical networks. He also discusses the most important and widely used industry standards to control harmonic distortion levels. Recognizing the diversity of power networks, this book examines the role of specific characteristics of various types of networks. Harmonics and Power Systems is an easy-to-follow, practical introduction for novices and a useful problem-solving tool for seasoned professionals.



Table of Contents


Ch. 1 Fundamentals of harmonic distortion and power quality indices in electric power systems 1
Ch. 2 Harmonic sources 27
Ch. 3 Standardization of harmonic levels 59
Ch. 4 Effects of harmonics on distribution systems 69
Ch. 5 Harmonics measurements 85
Ch. 6 Harmonic filtering techniques 93
Ch. 7 Other methods of decrease harmonic distortion limits 131
Ch. 8 Harmonic analyses 139
Ch. 9 Fundamentals of power losses in harmonic environments 169

terça-feira, 8 de fevereiro de 2011

Engenharia de Controle Moderno, 3a Edição


Engenharia de Controle Moderno
Autor: Katsuhiko Ogata
Editora:
Prentice-Hall

ISBN:
8587918230
Tamanho do arquivo: 16,67 mb

Sinopse:
Esta quarta edição do clássico do prof. Ogata atualiza e amplia as qualidades das edições anteriores. Todos os conceitos são explicados e desenvolvidos de maneira elegante, por meio de uma grande quantidade de exemplos claros e concisos, e apoiados por exercícios que cobrem uma variedade de aplicações. Completa o livro uma série de aplicações com o MATLAB© na análise e no projeto de sistemas de controle, de modo a ensinar não apenas a resolver os problemas matematicamente, mas também a utilizar o software como uma ferramenta de auxílio.

Link:

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