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Keywords = trigenerative compressed air energy storage

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19 pages, 2450 KiB  
Article
Thermodynamic Analysis of a Hybrid Trigenerative Compressed Air Energy Storage System with Solar Thermal Energy
by Xiaotao Chen, Xiaodai Xue, Yang Si, Chengkui Liu, Laijun Chen, Yongqing Guo and Shengwei Mei
Entropy 2020, 22(7), 764; https://doi.org/10.3390/e22070764 - 13 Jul 2020
Cited by 4 | Viewed by 3222
Abstract
The comprehensive utilization technology of combined cooling, heating and power (CCHP) systems is the leading edge of renewable and sustainable energy research. In this paper, we propose a novel CCHP system based on a hybrid trigenerative compressed air energy storage system (HT-CAES), which [...] Read more.
The comprehensive utilization technology of combined cooling, heating and power (CCHP) systems is the leading edge of renewable and sustainable energy research. In this paper, we propose a novel CCHP system based on a hybrid trigenerative compressed air energy storage system (HT-CAES), which can meet various forms of energy demand. A comprehensive thermodynamic model of the HT-CAES has been carried out, and a thermodynamic performance analysis with energy and exergy methods has been done. Furthermore, a sensitivity analysis and assessment capacity for CHP is investigated by the critical parameters effected on the performance of the HT-CAES. The results indicate that round-trip efficiency, electricity storage efficiency, and exergy efficiency can reach 73%, 53.6%, and 50.6%, respectively. Therefore, the system proposed in this paper has high efficiency and flexibility to jointly supply multiple energy to meet demands, so it has broad prospects in regions with abundant solar energy resource. Full article
(This article belongs to the Special Issue Thermodynamic Approaches in Modern Engineering Systems)
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7 pages, 759 KiB  
Proceeding Paper
Parametric Optimisation of a Trigenerative Small Scale Compressed Air Energy Storage System
by Mohamad Cheayb, Sébastien Poncet, Mylène Marin-Gallego and Mohand Tazerout
Proceedings 2019, 23(1), 5; https://doi.org/10.3390/proceedings2019023005 - 23 Aug 2019
Cited by 1 | Viewed by 1691
Abstract
Recently, major improvement on compressed air energy storage technology has been made by using the heat of compression for heating energy or using it to preheat the compressed air in the expansion phase and by demonstrating its ability to produce cooling energy. Thus, [...] Read more.
Recently, major improvement on compressed air energy storage technology has been made by using the heat of compression for heating energy or using it to preheat the compressed air in the expansion phase and by demonstrating its ability to produce cooling energy. Thus, the trigenerative compressed air energy storage has been introduced. In this paper, we introduce a configuration of trigenerative compressed air energy storage system giving the preference to the electric energy production. The study then focuses on undertaking an optimization study via a parametric analysis considering the mutual effects of parameters. This analysis is applied to a micro-scale application including the existing technological aspects. The parametric study results applied on the hot temperature of the thermal energy storage indicate the possibility to find an optimal solution as a trade-off between system performances and other parameters reflecting its cost. On the contrary, the selection of the maximal storage pressure cannot be achieved by finding a compromise between energy density and system efficiency. A complete study of other design parameters will be addressed in a future publication. Full article
(This article belongs to the Proceedings of Symposium on Energy Efficiency in Buildings and Industry)
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