Описание: The first part of Screw Compressors gives a review of recent developments in screw compressor design. The second part presents a generalized mathematical definition of screw machine rotors and describes some well known lobe shapes in detail. The third part treats the mathematical modelling of the thermodynamics and fluid mechanics of compression and expansion processes. This includes discussion of the issues addressed in order to be able to predict the optimum rotor size and speed and built-in volume ratio and, in the case of oil flooded machines, the injection position and jet diameter. The fourth and fifth parts discuss the principles used and describe the application of the analytical procedures and rotor profiling techniques, presented in the earlier chapters, to the design of a number of twin screw compressors, currently manufactured including the examples of combining expansion and compression in the same machine.
Автор: Nikola Stosic; Ian Smith; Ahmed Kovacevic Название: Screw Compressors ISBN: 3642063500 ISBN-13(EAN): 9783642063503 Издательство: Springer Рейтинг: Цена: 16977.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Althoughtheprinciplesofoperationofhelicalscrewmachines, ascompressors or expanders, have been well known for more than 100 years, it is only during the past 30 years that these machines have become widely used. The main reasons for the long period before they were adopted were their relatively poor e?ciency and the high cost of manufacturing their rotors. Two main developments led to a solution to these di?culties. The ?rst of these was the introduction of the asymmetric rotor pro?le in 1973. This reduced the bl- hole area, which was the main source of internal leakage by approximately 90%, and thereby raised the thermodynamic e?ciency of these machines, to roughly the same level as that of traditional reciprocating compressors. The second was the introduction of precise thread milling machine tools at - proximately the same time. This made it possible to manufacture items of complex shape, such as the rotors, both accurately and cheaply. From then on, as a result of their ever improving e?ciencies, high rel- bility and compact form, screw compressors have taken an increasing share of the compressor market, especially in the ?elds of compressed air production, and refrigeration and air conditioning, and today, a substantial proportion of compressors manufactured for industry are of this type. Despite, the now wide usage of screw compressors and the publication of many scienti?c papers on their development, only a handful of textbooks have been published to date, which give a rigorous exposition of the principles of their operation and none of these are in English
Описание: Human Factors Handbook for Process Plant Operations
Provides clear and simple instructions for integrating Human Factors principles and practices in the design of processes and work tasks
Human Factors, the science of interaction between humans and other elements of a system, draws from disciplines such as psychology, ergonomics, anthropometrics, and physiology to understand how and why people behave and perform as they do--and how best to support them in performing tasks. The goals of the Human Factors approach are to improve human reliability, minimize the risk from human error, and optimize the working environment, human wellbeing, and overall system performance.
Human Factors Handbook for Process Plant Operations guides supervisors, managers, and engineers on incorporating Human Factors principles and practices into plant maintenance and operations. With thorough and accessible coverage of all Human Factors topics of relevance to process industries, this easy-to-use handbook uses real-world anecdotes and case studies to demonstrate effective training and learning, task planning, communications, emergency response, risk and error management, and more. Throughout the text, the authors offer valuable insights into why people make mistakes while providing advice on how to help workers perform their process operational tasks successfully.
Explains all essential Human Factors concepts and knowledge with clear descriptions and illustrative examples
Offers actionable advice and models of good practice that can be applied to design, process operations, start-ups and shut-downs, and maintenance
Addresses job aids, equipment design, competence, task support, non-technical skills, working with contractors, and managing change
Discusses how lack of Human Factors considerations during the engineering design phase can adversely affect safety and performance
Describes how to use indicators to both recognize and learn from human error and performance issues
Written by highly experienced operating and maintenance personnel, Human Factors Handbook for Process Plant Operations is an indispensable resource for everyone involved with defining, planning, training, and managing process operations, maintenance, and emergency response in the food, pharmaceutical, chemical, petroleum, and refining industries.
The missions of both the CCPS and EI include developing and disseminating knowledge, skills and good practices to protect people, the environment, and property by bringing the best knowledge and practices to industry, academia, governments and the public around the world through collective wisdom, tools, training and expertise. The CCPS, an industrial technology alliance of the American Institute of Chemical Engineers (AIChE), has been at the forefront of documenting and sharing important process safety risk assessment methodologies for more than 35 years and has published over 100 books in its process safety guidelines and process safety concept book series. The EI's Technical Work Program addresses the depth and breadth of the energy sector from fuels and fuels distribution to health and safety, sustainability and the environment. The EI program provides cost-effective, value-adding knowledge on key current and future international issues affecting those in the energy sector.
Автор: Van den Braembussche Rene Название: Design and Analysis of Centrifugal Compressors ISBN: 1119424097 ISBN-13(EAN): 9781119424093 Издательство: Wiley Рейтинг: Цена: 17416.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
A comprehensive overview of fluid dynamic models and experimental results that can help solve problems in centrifugal compressors and modern techniques for a more efficient aerodynamic design.
Design and Analysis of Centrifugal Compressors isacomprehensive overview of the theoretical fluid dynamic models describing the flow in centrifugal compressors and the modern techniques for the design of more efficient centrifugal compressors. The author -- a noted expert in the field, with over 40 years of experience -- evaluates relevant numerical and analytical prediction models for centrifugal compressors with special attention to their accuracy and limitations. Relevant knowledge from the last century is linked with new insights obtained from modern CFD. Emphasis is to link the flow structure, performance and stability to the geometry of the different compressor components.
Design and Analysis of Centrifugal Compressors is an accessible resource that combines theory with experimental data and previous research with recent developments in computational design and optimization. This important resource
Covers the basic information concerning fluid dynamics that are specific for centrifugal compressors and clarifies the differences with axial compressors
Provides an overview of performance prediction models previously developed in combination with extra results from research conducted by the author
Describes helpful numerical and analytical models for the flow in the different components in relation to flow stability, operating range and performance
Includes the fundamental information for the aerodynamic design of more efficient centrifugal compressors
Explains the use of computational fluid dynamics (CFD) for the design and analysis of centrifugal compressors
Written for engineers, researchers and designers in industry as well as for academics specializing in the field, Design and Analysis of Centrifugal Compressors offers an up to date overview of the information needed for the design of more effective centrifugal compressors.
Описание: In the past fifteen years, microsimulation models have become firmly established as vital tools for analysis of the distributional impact of changes in governmental programmes. With contributions from more than 60 international experts, this volume offers a comprehensive introduction to the state of microsimulation internationally, illustrating a wide range of new applications and approaches.
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