Evaluation Of Turbomachinery For Compressed Air Energy Storage Plants
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Evaluation Of Turbomachinery For Compressed Air Energy Storage Plants
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Author :
language : en
Publisher:
Release Date : 1978
Evaluation Of Turbomachinery 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 study of possible turbomachinery options for compressed air energy storage plants is presented. The plant is divided into four subsystems: a turbine system, compressor system, motor/generator, and an underground air storage reservoir. The turbine system comprises a high-pressure turbine and combustor, a low-pressure turbine and combustor, and a recuperator. The compressor system comprises a low-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.
Evaluation Of The Use Of Reciprocating Engines In Compressed Air Energy Storage Plants
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Author :
language : en
Publisher:
Release Date : 1978
Evaluation Of The Use Of Reciprocating Engines In 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.
The application of reciprocating engines to compressed air energy storage (CAES) plants is presented. The expected advantages compared to plants using turbines and compressors are reduced reservoir size and cost, reduced compression energy, and increased overall plant efficiency. The performance of possible engine and plant configurations is presented. One configuration uses a reversible, reciprocating expander/compressor engine. Power generation results from engine operation as an internal-combustion expander; compression is accomplished using the same engine operating as a reciprocating compressor. Another possible configuration results when an internal-combustion engine is used as a high-pressure expander and a gas turbine is used as a low-pressure expander. Compression is accomplished using either separate turbocompressors or operating the high-pressure expander as a reversible-reciprocating compressor in series with a low-pressure turbocompressor. Capital and operating costs of plants using reciprocating engines are estimated and compared with that of turbine-based CAES plant designs. It is shown that using reciprocating engines can reduce capital and operating costs by about 11 and 8%, respectively, compared to a plant using available turbomachinery.
Evaluation Of Turbine Systems For Compressed Air Energy Storage Plants Final Report For Fy 1976
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Author :
language : en
Publisher:
Release Date : 1976
Evaluation Of Turbine Systems For Compressed Air Energy Storage Plants Final Report For Fy 1976 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Compressed air energy storage plants for electric utility peak-shaving applications comprise four subsystems: a turbine system, compressor system, an underground air storage reservoir, and a motor/generator. Proposed plant designs use turbines that are derived from available gas and steam turbines with proven reliability. The study examines proposed turbine systems and presents an evaluation of possible systems that may reduce capital cost and/or improve performance. Six new turbine systems are identified for further economic evaluation.
Preliminary Feasibility Evaluation Of Compressed Air Storage Power Systems
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Author : United Technologies Research Center
language : en
Publisher:
Release Date : 1976
Preliminary Feasibility Evaluation Of Compressed Air Storage Power Systems written by United Technologies Research Center and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Caves categories.
Evaluation Of Turbine Systems For Compressed Air Energy Storage Plants
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Author : George T. Kartsounes
language : en
Publisher:
Release Date : 1976
Evaluation Of Turbine Systems For Compressed Air Energy Storage Plants written by George T. Kartsounes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Extensible Modeling Of Compressed Air Energy Storage Systems
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Author : Siddharth Atul Kakodkar
language : en
Publisher:
Release Date : 2018
Extensible Modeling Of Compressed Air Energy Storage Systems written by Siddharth Atul Kakodkar 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.
There is a growing number of renewable energy sources that can supply power to the electrical grid. These renewable sources of energy are intermittent in nature and therefore the transition from using fossil fuels to green renewables requires the use of energy storage technologies to maintain and regulate a reliable supply of electricity. Energy storage technologies play a key role in allowing energy providers to provide a steady supply of electricity by balancing the fluctuations caused by sources of renewable energy. Compressed Air Energy Storage (CAES) is a promising utility scale energy storage technology that is suitable for long-duration energy storage and can be used to integrate renewable energy (such as Wind energy) to the electrical grid. CAES technologies can be broadly classified into 3 types: Diabatic-CAES (D-CAES), Adiabatic-CAES (A-CAES) and Isothermal-CAES (I-CAES). The author first performs a review on the different types of energy storage available today and a literature review on of CAES system level models, Turbomachinery models, and cavern models. After the gaps in literature are identified, the author then develops a flexible and extensible model of an A-CAES system, which can be used a CAES plant designer to obtain a first order thermodynamic evaluation of a particular plant configuration. The developed model is scalable, modular and can be connected to a control strategy. The model is able to capture time dependent losses and part load behavior of turbomachinery. The modeling methodology is focused around keeping the model extensible, i.e. components and their fidelity can be easily altered for the model's future growth. The components modeled are the compressor, the turbine, the induction motor, the generator, and a thermal energy storage device to the make the CAES plant adiabatic. The model is created using the Matlab/Simulinkʼ software, which is commonly used tool for modeling. The A-CAES plant model was simulated for 23.3 hours comprising of 12.47 hours of charging using a mass flow rate of 107.5 kg/s, 8 hours of storage and 2.83 hours of discharge using a mass flow rate of 400 kg/s. The maximum and minimum cavern pressures were 72 bar and 42 bar respectively. The obtained round trip efficiency is 76.24%. Additionally, the turbine start-up time was found to be 760 seconds. The compressor train average efficiency was calculated as 70%, the expansion train average efficiency was calculated as 81% and the TES efficiency was calculated as 91%. The models simulated the behavior of an A-CAES plant accurately with the compressor and turbine showing a close resemblance to their performance maps. The results indicate that Adiabatic-CAES is a promising and emerging technology. However, further research and development is required beyond this thesis; specifically, in the area of thermal energy storage and management. Finally, the author makes recommendations on how to further improve upon the achieved objectives in this work.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1982
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Power resources categories.
Economic And Technical Feasibility Study Of Compressed Air Storage
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Author : General Electric Company. Research and Development Center
language : en
Publisher:
Release Date : 1976
Economic And Technical Feasibility Study Of Compressed Air Storage written by General Electric Company. Research and Development Center and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
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.