Parametric performance maps for design and selection of Liquid Air Energy Storage system for mini to micro-grid scale applications

• Main Authors: Tafone, Alessio, Borri, Emiliano, Comodi, Gabriele, Romagnoli, Alessandro
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Science::Physics; LAES; Microgrid Scale
• Online Access: https://hdl.handle.net/10356/90090; http://hdl.handle.net/10220/49411
• Institution: Nanyang Technological University

This paper aims to deliver new performance maps for “microgrid scale” Liquid Air Energy Storage system with a liquid air production of 1000 kg/h. By means of the performance maps, the impact of the main Liquid Air Energy Storage operative parameters, as well as the effect of the cold/warm thermal energy storage utilization factor, over the key performance indicators has been assessed and analyzed. The thermodynamics and sub-processes of the Liquid Air Energy Storage system are described in details and simulated by means of the software Aspen Hysys. Each performance map has been modelled by means of a sensitivity analysis carried out for the system operative parameters. Such a new methodology allows to select Liquid Air Energy Storage size and its related performance by means of a simple tool without the implementation of any complex numerical model.