Energetical analysis of two different configurations of a liquid-gas compressed energy storage
Authors:
- Andrea Vallati,
- Chiara Colucci,
- Paweł Ocłoń
Abstract
In order to enhance the spreading of renewable energy sources in the Italian electric power market, as well as to promote self-production and to decrease the phase delay between energy production and consumption, energy storage solutions are catching on. Nowadays, in general, small size electric storage batteries represent a quite diffuse technology, while air liquid-compressed energy storage solutions are used for high size. The goal of this paper is the development of a numerical model for small size storage, environmentally sustainable, to exploit the higher efficiency of the liquid pumping to compress air. Two different solutions were analyzed, to improve the system efficiency and to exploit the heat produced by the compression phase of the gas. The study was performed with a numerical model implemented in Matlab, by analyzing the variation of thermodynamical parameters during the compression and the expansion phases, making an energetic assessment for the whole system. The results show a good global efficiency, thus making the system competitive with the smallest size storage batteries.
- Record ID
- CUTb95c635939a647d4a8d5b18fdf1f9f65
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2018
- Vol
- 11
- No
- 12
- Pages
- 1-18
- Other elements of collation
- schem.; tab.; wykr.; Bibliografia (na s.) - 17-18; Bibliografia (liczba pozycji) - 23; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 11, Iss. 12
- Keywords in English
- energy analysis, compressed air energy storage, heat exchange, electric power generation
- DOI
- DOI:10.3390/en11123405 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/11/12/3405 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 25
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb95c635939a647d4a8d5b18fdf1f9f65/
- URN
urn:pkr-prod:CUTb95c635939a647d4a8d5b18fdf1f9f65
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.