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Information entropy-guided fast dimensionality reduction CFD-TRNSYS coupling for piston wind and phase change material (PCM) energy saving in subway stations
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DOI：10.1016/j.buildenv.2026.115099.png)
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Abstract
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• An entropy-based CFD-TRNSYS coupling framework is proposed for subways. • Information entropy reduces 3D CFD to 2D models with <5% mass flow error. • Simulation time is reduced by over 99% compared to full 3D transient CFD. • Utilizing piston wind alone achieves a 9% reduction in HVAC energy use. • Coupling piston wind with PCM further enhances energy savings to 13.5%.
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7.6
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1.3W
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6.6W
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