Operating Range for a Combined, Building-Scale Liquid Air Energy Storage and Expansion System: Energy and Exergy Analysis

Abstract

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.

A mini-review on liquid air energy storage system hybridization, modelling, and economics: towards carbon neutrality

“…Such cycle is not commercially viable and is used on a very narrow scale because of several limitations including poor liquid yield, very high pressures, low exergy efficiency, and cycle irreversibility. 55 Therefore, the research carried out on this cycle is limited and further work has been carried out on Claude and Kapitza cycles.…”

CFD-subset-FVM-based MATLAB-simulation of Heat Transfer in High Grade Cold Storage Augmenting Cryogenic Energy Storage System by Circulating Natural Gas as Working Fluid

“…Table-III shows these findings. Computer aided thermodynamic tables are used to get enthalpy and entropy values, from pressure and temperature data, in turn to calculate exergy and efficiency [5], [10].…”

Multipurpose System for Cryogenic Energy Storage and Tri-Generation in a Food Factory: A Case Study of Producing Frozen French Fries

“…Their study concluded that such a configuration can achieve an overall RTE between 52% and 76%. A LAES-assisted polygeneration system for micro-grids applications has also been proposed by Mazzoni et al [14], Howe et al [15] focused on a combined, building-scale LAES and expansion system, while Szablowski et al [16] analysed exergetically an adiabatic LAES system using the Linde-Hampson liquefaction cycle.…”