Computational Model of Shell and Finned Tube Latent Thermal Energy Storage Developed as a New TRNSYS Type

This paper presents the development of a computational model latent thermal energy storage (LTES) in shell and tube configuration with longitudinal fins. The describes physical process transient heat transfer between fluid (HTF) phase change material (PCM) LTES. For modeling PCM, enthalpy formulation was used. Based on one-dimensional model, new Trnsys type developed written Fortran. Validation LTES performed by comparing numerically experimentally obtained data for melting solidification paraffin RT 25 as PCM water HTF. Numerical investigations effect HTF inlet temperature flow rate confirmed that significant improvement could be achieved increasing during charging or decreasing discharging. Increasing did not significantly improve both presented, validated used to analyze feasibility integrating into various systems ultimately help define specific benefits implementing systems.