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Recent Trends on Liquid Air Energy Storage: A Bibliometric Analysis

GREiA Research Group, Universitat de Lleida, Pere de Cabrera s/n, 25001 Lleida, Spain
Energy Research Institute @ NTU, 1 Cleantech Loop, Singapore 637141, Singapore
Dipartimento di Ingegneria Industriale e Scienze Matematiche—Università Politecnica delle Marche, 60131 Ancona, Italy
School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(8), 2773;
Received: 6 March 2020 / Revised: 26 March 2020 / Accepted: 13 April 2020 / Published: 16 April 2020
(This article belongs to the Section Energy)
The increasing penetration of renewable energy has led electrical energy storage systems to have a key role in balancing and increasing the efficiency of the grid. Liquid air energy storage (LAES) is a promising technology, mainly proposed for large scale applications, which uses cryogen (liquid air) as energy vector. Compared to other similar large-scale technologies such as compressed air energy storage or pumped hydroelectric energy storage, the use of liquid air as a storage medium allows a high energy density to be reached and overcomes the problem related to geological constraints. Furthermore, when integrated with high-grade waste cold/waste heat resources such as the liquefied natural gas regasification process and hot combustion gases discharged to the atmosphere, LAES has the capacity to significantly increase the round-trip efficiency. Although the first document in the literature on the topic of LAES appeared in 1974, this technology has gained the attention of many researchers around the world only in recent years, leading to a rapid increase in a scientific production and the realization of two system prototype located in the United Kingdom (UK). This study aims to report the current status of the scientific progress through a bibliometric analysis, defining the hotspots and research trends of LAES technology. The results can be used by researchers and manufacturers involved in this entering technology to understand the state of art, the trend of scientific production, the current networks of worldwide institutions, and the authors connected through the LAES. Our conclusions report useful advice for the future research, highlighting the research trend and the current gaps. View Full-Text
Keywords: liquid air energy storage; LAES; literature review; bibliometric analysis liquid air energy storage; LAES; literature review; bibliometric analysis
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Borri, E.; Tafone, A.; Zsembinszki, G.; Comodi, G.; Romagnoli, A.; Cabeza, L.F. Recent Trends on Liquid Air Energy Storage: A Bibliometric Analysis. Appl. Sci. 2020, 10, 2773.

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