Novel Simulation Algorithm for Modeling the Hysteresis of Phase Change Materials

Energies

Umberto Berardi¹  Anna Zastawna-Rumin²  Tomasz Kisilewicz² 

[1] Department of Architectural Science, Ryerson University, 350 Victoria st., Toronto, ON M5B 2K3, Canada;Faculty of Civil Engineering, Cracow University of Technology, 31-155 Krakow, Poland;

关键词: phase change material;    hysteresis;    simulations;    energyplus;    thermal energy storage;   

DOI  :  10.3390/en13051200

来源: DOAJ

【 摘 要 】

Latent heat thermal energy storage (LHTES) using phase change materials (PCM) is one of the most promising ways for thermal energy storage (TES), especially in lightweight buildings. However, accurate control of the phase transition of PCM is not easy to predict. For example, neglecting the hysteresis or the effect of the speed of phase change processes reduces the accuracy of simulations of TES. In this paper, the authors propose a new software module for EnergyPlus™ that aims to simulate the hysteresis of PCMs during the phase change. The new module is tested by comparing simulation results with experimental tests done in a climatic chamber. A strong consistency between experimental and simulation results was obtained, while a discrepancy error of less than 1% was obtained. Moreover, in real conditions, as a result of quick temperature changes, only a partial phase transformation of the material is often observed. The new model also allows the consideration of the case with partial phase changes of the PCM. Finally, the simulation algorithm presented in this article aims to represent a better way to model LHTES with PCM.

【 授权许可】

Unknown