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Title: Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production

Abstract

This project develops and demonstrates a megawatt (MW)-scale Energy Storage System that employs compressed air as the storage medium. An isothermal compressed air energy storage (ICAES TM) system rated for 1 MW or more will be demonstrated in a full-scale prototype unit. Breakthrough cost-effectiveness will be achieved through the use of proprietary methods for isothermal gas cycling and staged gas expansion implemented using industrially mature, readily-available components.The ICAES approach uses an electrically driven mechanical system to raise air to high pressure for storage in low-cost pressure vessels, pipeline, or lined-rock cavern (LRC). This air is later expanded through the same mechanical system to drive the electric motor as a generator. The approach incorporates two key efficiency-enhancing innovations: (1) isothermal (constant temperature) gas cycling, which is achieved by mixing liquid with air (via spray or foam) to exchange heat with air undergoing compression or expansion; and (2) a novel, staged gas-expansion scheme that allows the drivetrain to operate at constant power while still allowing the stored gas to work over its entire pressure range. The ICAES system will be scalable, non-toxic, and cost-effective, making it suitable for firming renewables and for other grid applications.

Authors:
 [1]
  1. Sustainx, Incorporated, Seabrook, NH (United States)
Publication Date:
Research Org.:
Sustainx, Incorporated, Seabrook, NH (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
OSTI Identifier:
1178542
DOE Contract Number:  
OE0000231
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Bollinger, Benjamin. Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production. United States: N. p., 2015. Web. doi:10.2172/1178542.
Bollinger, Benjamin. Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production. United States. doi:10.2172/1178542.
Bollinger, Benjamin. Fri . "Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production". United States. doi:10.2172/1178542. https://www.osti.gov/servlets/purl/1178542.
@article{osti_1178542,
title = {Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production},
author = {Bollinger, Benjamin},
abstractNote = {This project develops and demonstrates a megawatt (MW)-scale Energy Storage System that employs compressed air as the storage medium. An isothermal compressed air energy storage (ICAESTM) system rated for 1 MW or more will be demonstrated in a full-scale prototype unit. Breakthrough cost-effectiveness will be achieved through the use of proprietary methods for isothermal gas cycling and staged gas expansion implemented using industrially mature, readily-available components.The ICAES approach uses an electrically driven mechanical system to raise air to high pressure for storage in low-cost pressure vessels, pipeline, or lined-rock cavern (LRC). This air is later expanded through the same mechanical system to drive the electric motor as a generator. The approach incorporates two key efficiency-enhancing innovations: (1) isothermal (constant temperature) gas cycling, which is achieved by mixing liquid with air (via spray or foam) to exchange heat with air undergoing compression or expansion; and (2) a novel, staged gas-expansion scheme that allows the drivetrain to operate at constant power while still allowing the stored gas to work over its entire pressure range. The ICAES system will be scalable, non-toxic, and cost-effective, making it suitable for firming renewables and for other grid applications.},
doi = {10.2172/1178542},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 02 00:00:00 EST 2015},
month = {Fri Jan 02 00:00:00 EST 2015}
}

Technical Report:

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