An effectiveness-NTU technique for characterising a finned tubes PCM system using a CFD model

作者：Tay N H S^*; Belusko M; Castell A; Cabeza L F; Bruno F

来源：Applied Energy, 2014, 131: 377-385.

DOI：10.1016/j.apenergy.2014.06.041

• Effectiveness-NTU
• Thermal storage system
• Phase change material
• Computational fluid dynamics
• Finned tubes

Numerical modelling is commonly used to design, analyse and optimise tube-in-tank phase change thermal energy storage systems with fins. A new simplified two dimensional mathematical model, based on the effectiveness-number of transfer units technique, has been developed to characterise tube-in-tank phase change material systems, with radial round fins. The model applies an empirically derived P factor which defines the proportion of the heat flow which is parallel and isothermal. This P factor was determined using a validated computational fluid dynamics model. This method can be used to design and optimise tube-in-tank salt based phase change thermal storage units with finned tubes.

• 出版日期2014-10-15