Flow and heat transfer characteristics of air compression in a liquid piston for compressed air energy storage
نویسندگان
چکیده
The breakthrough in energy storage technology is the key issue for renewable penetration and compressed air (CAES) has demonstrated potential large-scale of power plants. Liquid piston (LP) been developed to achieve Isothermal CAES with improved efficiency, but description physical understanding coupled flow heat transfer dynamic behaviors are lacking. In this study, a 3D CFD model LP compressor using finite-volume method VOF validated by existing experimental data-sets. compression column simulated temperature characteristics obtained analysed detail first time. Results clearly show existence different patterns over establishment axisymmetric structure, its evolution transition totally chaotic one can be identified. instabilities due high shear stress frictions at interface between central-ascending & peripheral-descending streams may cause structure disruption. rise (32.5 K) end 7.7 times smaller than that adiabatic operation, confirming interests realizing Isothermal-CAES systems.
منابع مشابه
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ژورنال
عنوان ژورنال: Energy
سال: 2022
ISSN: ['1873-6785', '0360-5442']
DOI: https://doi.org/10.1016/j.energy.2022.124305