A novel mathematical model for the performance assessment of diabatic compressed air energy storage systems including the turbomachinery characteristic curves

被引:52
作者
Briola, Stefano [1 ]
Di Marco, Paolo [2 ]
Gabbrielli, Roberto [1 ]
Riccardi, Juri [3 ]
机构
[1] Univ Pisa, DICI, Via Bonanno Pisano 25-B, I-56126 Pisa, Italy
[2] Univ Pisa, DESTEC, Largo Lazzarino 1, I-56122 Pisa, Italy
[3] ENEL SpA Engn & Res, Via Andrea Pisano 120, I-56122 Pisa, Italy
关键词
Diabatic compressed air energy storage; Mathematical modeling; Performance assessment; Characteristic curves; DIESEL-ENGINE; CAES; POWER; INTEGRATION; PLANT; TECHNOLOGIES; TEMPERATURE;
D O I
10.1016/j.apenergy.2016.06.091
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
080707 [能源环境工程]; 082001 [油气井工程];
摘要
In this work, a novel detailed mathematical model for the performance assessment of diabatic compressed air energy storage (D-CAES) systems with underground storage site is proposed. The model was implemented in Matlab environment and it was validated using the D-CAES Huntorf plant data, demonstrating a close agreement with the data reported in literature. The analysis of some case studies of the D-CAES plant showed that the characteristic curves of the compressors, that were assumed for the operation in steady state conditions, are not suitable for modeling the operation in time-dependent conditions. Thus, different characteristic curves of the compressors and turbines were identified in such a way that the operation points of turbomachinery lay within the admissible range during the entire process sequence, in steady state or time-dependent conditions. Furthermore, the analysis demonstrated that the presence of the throttling valves in the charging and discharging circuits is preferable due to a higher simplicity of construction and regulation despite a low increase of the fuel consumption in the combustion chambers. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:758 / 772
页数:15
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