Microgrid application of liquefied air energy storage (LAES) systems

Beatrice Castellani; Parminder Kaur; Adriano Sciacovelli; Federico Rossi; Yulong Ding

doi:10.1088/1742-6596/2509/1/012021

Microgrid application of liquefied air energy storage (LAES) systems

Beatrice Castellani^*, Parminder Kaur, Adriano Sciacovelli, Federico Rossi, Yulong Ding

^*Corresponding author for this work

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Abstract

An energy and economic analysis on small-scale LAES (liquefied air energy storage) system is presented. The LAES operative parameters were analyzed via MATLAB simulations. The optimal case is given with a flowrate of 1000 kg/h and 4 turbine expansions, resulting in a net electric power output in the discharging process of 260 kW and the optimal values are 450 K for inlet temperature and 150 bar for the discharge pressure. For the charging process the specific consumption is significantly affected by the storage pressure. Also the round trip efficiency is influenced by the storage pressure: for a storage pressure of 8 bar, it is about 25% compared to the 12% in case of a storage pressure equal to 1.10 bar. The LCOS obtained is between 1.2 €/kWh and 1.8 €/kWh. This values are higher than other results in literature due to the scale of the system.

Original language	English
Article number	012021
Number of pages	8
Journal	Journal of Physics: Conference Series
Volume	2509
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/2509/1/012021
Publication status	Published - 1 May 2023
Event	39th UIT International Conference - Gaeta, Italy Duration: 20 Jun 2022 → 22 Jun 2022

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title = "Microgrid application of liquefied air energy storage (LAES) systems",

abstract = "An energy and economic analysis on small-scale LAES (liquefied air energy storage) system is presented. The LAES operative parameters were analyzed via MATLAB simulations. The optimal case is given with a flowrate of 1000 kg/h and 4 turbine expansions, resulting in a net electric power output in the discharging process of 260 kW and the optimal values are 450 K for inlet temperature and 150 bar for the discharge pressure. For the charging process the specific consumption is significantly affected by the storage pressure. Also the round trip efficiency is influenced by the storage pressure: for a storage pressure of 8 bar, it is about 25% compared to the 12% in case of a storage pressure equal to 1.10 bar. The LCOS obtained is between 1.2 €/kWh and 1.8 €/kWh. This values are higher than other results in literature due to the scale of the system.",

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T1 - Microgrid application of liquefied air energy storage (LAES) systems

AU - Castellani, Beatrice

AU - Kaur, Parminder

AU - Sciacovelli, Adriano

AU - Rossi, Federico

AU - Ding, Yulong

PY - 2023/5/1

Y1 - 2023/5/1

N2 - An energy and economic analysis on small-scale LAES (liquefied air energy storage) system is presented. The LAES operative parameters were analyzed via MATLAB simulations. The optimal case is given with a flowrate of 1000 kg/h and 4 turbine expansions, resulting in a net electric power output in the discharging process of 260 kW and the optimal values are 450 K for inlet temperature and 150 bar for the discharge pressure. For the charging process the specific consumption is significantly affected by the storage pressure. Also the round trip efficiency is influenced by the storage pressure: for a storage pressure of 8 bar, it is about 25% compared to the 12% in case of a storage pressure equal to 1.10 bar. The LCOS obtained is between 1.2 €/kWh and 1.8 €/kWh. This values are higher than other results in literature due to the scale of the system.

AB - An energy and economic analysis on small-scale LAES (liquefied air energy storage) system is presented. The LAES operative parameters were analyzed via MATLAB simulations. The optimal case is given with a flowrate of 1000 kg/h and 4 turbine expansions, resulting in a net electric power output in the discharging process of 260 kW and the optimal values are 450 K for inlet temperature and 150 bar for the discharge pressure. For the charging process the specific consumption is significantly affected by the storage pressure. Also the round trip efficiency is influenced by the storage pressure: for a storage pressure of 8 bar, it is about 25% compared to the 12% in case of a storage pressure equal to 1.10 bar. The LCOS obtained is between 1.2 €/kWh and 1.8 €/kWh. This values are higher than other results in literature due to the scale of the system.

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DO - 10.1088/1742-6596/2509/1/012021

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Microgrid application of liquefied air energy storage (LAES) systems

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