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Author:
Publisher:
ISBN: 9789843322142
Category : Fluid mechanics
Languages : en
Pages : 1205
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Book Description
Author:
Publisher:
ISBN: 9789843322142
Category : Fluid mechanics
Languages : en
Pages : 1205
Get Book Here
Book Description
Author: Indian Institute of Science
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Masahiro Furuya
Publisher: IOS Press
ISBN: 9781586036058
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
20% of the Nuclear Power Plants are known as Boiling Water Reactors (BWRs). These BWRs have pumps that cool their reactor. In the design of new BWRs, ways to cool the core by a natural circulation flow, without pumps, also called natural circulation BWRs, are being considered. In these new systems, a chimney is installed on top of the core to increase natural circulation flow. A possible disadvantage of natural circulation BWRs might be their susceptibility to instabilities, which could then lead to both flow and power oscillations. The stability features of both natural circulation and forced circulation BWRs have been investigated thoroughly, using dedicated experimental setups, analytical models and numerical codes. We distinguish between pure thermal-hydraulic stability - where the fission power is assumed to be constant - and coupled thermalhydraulic-neutronic stability - where the two-phase mixture in the core influences the fission chain reaction...
Author: R. I. Sujith
Publisher: Springer Nature
ISBN: 3030811352
Category : Science
Languages : en
Pages : 484
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Book Description
This book systematically presents the consolidated findings of the phenomenon of self-organization observed during the onset of thermoacoustic instability using approaches from dynamical systems and complex systems theory. Over the last decade, several complex dynamical states beyond limit cycle oscillations such as quasiperiodicity, frequency-locking, period-n, chaos, strange non-chaos, and intermittency have been discovered in thermoacoustic systems operated in laminar and turbulent flow regimes. During the onset of thermoacoustic instability in turbulent systems, an ordered acoustic field and large coherent vortices emerge from the background of turbulent combustion. This emergence of order from disorder in both temporal and spatiotemporal dynamics is explored in the contexts of synchronization, pattern formation, collective interaction, multifractality, and complex networks. For the past six decades, the spontaneous emergence of large amplitude, self-sustained, tonal oscillations in confined combustion systems, characterized as thermoacoustic instability, has remained one of the most challenging areas of research. The presence of such instabilities continues to hinder the development and deployment of high-performance combustion systems used in power generation and propulsion applications. Even with the advent of sophisticated measurement techniques to aid experimental investigations and vast improvements in computational power necessary to capture flow physics in high fidelity simulations, conventional reductionist approaches have not succeeded in explaining the plethora of dynamical behaviors and the associated complexities that arise in practical combustion systems. As a result, models and theories based on such approaches are limited in their application to mitigate or evade thermoacoustic instabilities, which continue to be among the biggest concerns for engine manufacturers today. This book helps to overcome these limitations by providing appropriate methodologies to deal with nonlinear thermoacoustic oscillations, and by developing control strategies that can mitigate and forewarn thermoacoustic instabilities. The book is also beneficial to scientists and engineers studying the occurrence of several other instabilities, such as flow-induced vibrations, compressor surge, aeroacoustics and aeroelastic instabilities in diverse fluid-mechanical environments, to graduate students who intend to apply dynamical systems and complex systems approach to their areas of research, and to physicists who look for experimental applications of their theoretical findings on nonlinear and complex systems.
Author: India. Ministry of External Affairs
Publisher:
ISBN:
Category : India
Languages : en
Pages : 268
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Book Description
Author: Institution of Engineers (India)
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 958
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Book Description
Author: Francesca Ottolenghi
Publisher: Fao
ISBN:
Category : Business & Economics
Languages : en
Pages : 344
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Book Description
"The aim of this report is to define and review this "semi-aquaculture practice", which has been more accurately named "capture-based aquaculture." -- Preface.
Author: Paul Harremoes
Publisher: Routledge
ISBN: 1134207786
Category : Business & Economics
Languages : en
Pages : 289
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Book Description
The precautionary principle is widely seen as fundamental to successful policies for sustainability. It has been cited in international courts and trade disputes between the USA and the EU, and invoked in a growing range of political debates. Understanding what it can and cannot achieve is therefore crucial. This volume looks back over the last century to examine the role the principle played or could have played, in a range of major and avoidable public disasters. From detailed investigation of how each disaster unfolded, what the impacts were and what measures were adopted, the authors draw lessons and establish criteria that could help to minimise the health and environmental risks of future technological, economic and policy innovations. This is an informative resource for all those from lawyers and policy-makers, to researchers and students needing to understand or apply the principle.
Author: Yong Bai
Publisher: Gulf Professional Publishing
ISBN: 0123978041
Category : Science
Languages : en
Pages : 957
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Book Description
Subsea production systems, overview of subsea engineering, subsea field development, subsea distribution system. Flow assurance and system engineering. Susea structure and equiment. Subsea umbilical, risers and flowlines.
Author: European Environment Agency
Publisher: Luxembourg : Office for Official Publications of the European Communities
ISBN:
Category : Antibiotics in animal nutrition
Languages : en
Pages : 220
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Book Description
The precautionary principle is widely seen as fundamental to successful policies for sustainability. This title looks back over the last century to examine the role the principle played in a range of major and avoidable public disasters.
