Operating Range for a Combined, Building-Scale Liquid Air Energy Storage and Expansion System: Energy and Exergy Analysis
Howe, Todd A.
Pollman, Anthony G.
Gannon, Anthony J.
MetadataShow full item record
This paper presents the results of an ideal theoretical energy and exergy analysis for a combined, building scale Liquid Air Energy Storage (LAES) and expansion turbine system. This work identifies the upper bounds of energy and exergy efficiency for the combined LAES-expansion system which has not been investigated. The system uses the simple Linde-Hampson and pre-cooled Linde-Hampson cycles for the liquefaction subsystem and direct expansion method, with and without heating above ambient temperature, for the energy production subsystem. In addition, the paper highlights the effectiveness of precooling air for liquefaction and heating air beyond ambient temperature for energy production. Finally, analysis of the system components is presented with an aim toward identifying components that have the greatest impact on energy and exergy efficiencies in an ideal environment. This work highlights the engineering trade-space and serves as a prescription for determining the merit or measures of effectiveness for an engineered LAES system in terms of energy and exergy. The analytical approach presented in this paper may be applied to other LAES configurations in order to identify optimal operating points in terms of energy and exergy efficiencies
The article of record as published may be found at http://dx.doi.org/10.3390/e20100770
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Willis, Ryan M.; Pollman, Anthony G.; Gannon, Anthony J.; Hernandez, Alejando (IEEE, 2019);Liquid Air Energy Storage (LAES) is a potential solution to mitigate renewable energy intermittency on islanded microgrids. Renewable microgrid generation in excess of the immediate load runs a cryogenic cycle to create ...
Modeling and Simulation Informed Conceptual Design, Analysis, and Initial Component Selection of a Supply-Side Building Scale LAES System for Renewable, Islanded Microgrid Resiliency Girouard, Christopher; Pollman, Anthony G.; Hernandez, Alejandro (MORS, 2019);Effective use and integration of renewable energy sources, coupled with different storage options, is an emerging priority within the Department of Defense. One promising method of energy storage is a Liquid Air Energy ...
Howe, Todd A. (Monterey, CA; Naval Postgraduate School, 2018-06);Renewable energy generation is intermittent, necessitating energy storage subsystems to provide electricity during periods of reduced or no power generation. Liquid air energy storage (LAES) systems, with their high energy ...