Modelling Axial Turbomachinery For Compressed Air Energy Storage
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Modelling Axial Turbomachinery For Compressed Air Energy Storage
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Author : Jorge Gonzalez-Gonzalez
language : en
Publisher:
Release Date : 2018
Modelling Axial Turbomachinery For Compressed Air Energy Storage written by Jorge Gonzalez-Gonzalez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Compressed air categories.
Climate change and negative environmental effects from a human's life style have ignited the search for grid-scale electricity production from renewable energy sources. Significant advances with respect to renewable energy conversion into electricity has been achieved in recent years. However, their integration with the electrical grid is still an unsolved problem because the natural intermittency associated with them. Grid-scale energy storage can be the solution to the intermittency problem; of all the types or storage, compressed air energy storage (CAES) is one of the most promising potential solutions to effectively integrate renewable energies to the grid. CAES consists in compressing air during times when the electricity production is larger than the demand. This compressed air is stored in a huge reservoir; it is then used during peak demand times to run gas turbines which are connected to power generators. Literature about steady state CAES is widely available; topics such as system efficiency, fuel free CAES, and reservoir sizing being arguably the most commonly published. However, there are very few works about dynamic state of a CAES system; and there are next to no publications regarding the transient modelling of the turbomachinery for CAES. This thesis develops two independent dynamic models of axial turbomachines for CAES systems; one for a compressor and one for a turbine. These models should be able to represent the behavior of the machines, as well as easily connect with the rest of the components of the system. For these reasons, the models are developed in the SIMULINKʼ environment, which is a tool commonly used for electrical modelling. The models use the time domain, and are based on compressor and turbine performance maps, which make them representative, and let them require a short simulation time. The objective of the simulations is to see how the models behave with regards to power inefficiency, part-load operation; and the effects on the complete operation caused by the system inertias. The models can replicate the operation of any axial turbomachine provided the respective map, and can be also used with centrifugal compressors. Upon running the simulations, a round trip efficiency of 55% was obtained. Furthermore, it takes 296 seconds to increase the pressure of a cavern of 3000 m3 from 422.18 Kpa to 747.4 Kpa. The simulated turbine of 167 MW and design speed of 17000 rpm, with a nominal mass flow rate of 400 kg/s, will take 778 seconds to reach its nominal speed.
Turbomachinery Engineering And Optimization For 25 Mw Compressed Air Energy Storage Systems
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Author : R. Schainker
language : en
Publisher:
Release Date : 1984
Turbomachinery Engineering And Optimization For 25 Mw Compressed Air Energy Storage Systems written by R. Schainker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
An Introduction To Energy Conversion
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Author : V. Kadambi
language : en
Publisher: New Age International
Release Date : 1977
An Introduction To Energy Conversion written by V. Kadambi and has been published by New Age International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Direct energy conversion categories.
Study Of Selected Turbomachinery Components For Compressed Air Energy Storage Systems
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Author : W. Richard Davison
language : en
Publisher:
Release Date : 1977
Study Of Selected Turbomachinery Components For Compressed Air Energy Storage Systems written by W. Richard Davison and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
Handbook Of Turbomachinery
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Author : Earl Logan, Jr.
language : en
Publisher: CRC Press
Release Date : 2003-05-01
Handbook Of Turbomachinery written by Earl Logan, Jr. and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-05-01 with Technology & Engineering categories.
Building on the success of its predecessor, Handbook of Turbomachinery, Second Edition presents new material on advances in fluid mechanics of turbomachinery, high-speed, rotating, and transient experiments, cooling challenges for constantly increasing gas temperatures, advanced experimental heat transfer and cooling effectiveness techniques, and propagation of wake and pressure disturbances. Completely revised and updated, it offers updated chapters on compressor design, rotor dynamics, and hydraulic turbines and features six new chapters on topics such as aerodynamic instability, flutter prediction, blade modeling in steam turbines, multidisciplinary design optimization.
Modeling Of Turbomachines For Control And Diagnostic Applications
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Author : Igor Loboda
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-05-27
Modeling Of Turbomachines For Control And Diagnostic Applications written by Igor Loboda and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-27 with Technology & Engineering categories.
This book presents new studies in the area of turbomachine mathematical modeling with a focus on models applied to developing engine control and diagnostic systems. The book contains one introductory and four main chapters. The introductory chapter describes the area of modeling of gas and wind turbines and shows the demand for further improvement of the models. The first three main chapters offer particular improvements in gas turbine modeling. First, a novel methodology for the modeling of engine starting is presented. Second, a thorough theoretical comparative analysis is performed for the models of engine internal gas capacities, and practical recommendations are given on model applications, in particular for engine control purposes. Third, multiple algorithms for calculating important unmeasured parameters for engine diagnostics are proposed and compared. It is proven that the best algorithms allow accurate prognosis of engine remaining lifetime.The field of wind turbine modeling is presented in the last main chapter. It introduces a general-purpose model that describes both aerodynamic and electric parts of a wind power plant. Such a detailed physics-based model will help with the development of more accurate control and diagnostic systems.In this way, this book includes four new studies in the area of gas and wind turbine modeling. These studies will be interesting and useful for specialists in turbine engine control and diagnostics.
Fossil Energy Update
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Author :
language : en
Publisher:
Release Date : 1977
Fossil Energy Update written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Fossil fuels categories.
Fluid Mechanics And Thermodynamics Of Turbomachinery
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Author : Sydney Lawrence Dixon
language : en
Publisher: Elsevier
Release Date : 1998
Fluid Mechanics And Thermodynamics Of Turbomachinery written by Sydney Lawrence Dixon and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
In the intervening 20 years since the 3rd edition of this textbook many advances have been made in the design of turbines and greater understanding of the processes involved have been gained. This 4th edition brings the book up to date.
Parametric Analysis Of Turbomachinery Options For Compressed Air Energy Storage Plants
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Author :
language : en
Publisher:
Release Date : 1978
Parametric Analysis Of Turbomachinery Options For Compressed Air Energy Storage Plants written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
A parametric study of possible turbomachinery options for compressed air energy storage plants is presented. The plant is divided into the four subsystems: a turbine system, compressor system, motor/generator, and an underground air storage reservoir. The turbine system comprises a high-pressure turbine, a low-pressure turbine, two combustors, and a recuperator. The compressor system comprises a low-pressure compressor, high-pressure compressor, booster compressor, intercoolers, and an aftercooler. A water-compensated mined cavern constitutes the underground air-storage reservoir. Plant performance is presented in terms of five parameters: specific air flow rate, specific heat rate, specific storage volume, specific compression rate, and overall plant efficiency. The capital and operating costs of the plant as a function of the turbomachinery options are presented. Design variables of the turbomachinery are the reservoir pressure and inlet gas temperatures to the turbines.
Turbomachinery Design Criteria For Compressed Air Energy Storage Plants
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Author : Paul Zaugg
language : en
Publisher:
Release Date : 1979
Turbomachinery Design Criteria For Compressed Air Energy Storage Plants written by Paul Zaugg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Compressed air categories.