Modelling Approach for Hybrid PV/T Solar Panels with Integrated Phase Change Material (PCM) Layer
Abstract
This work, performed in the context of the LowUP H2020 European project, presents a modelling approach for innovative renewable technology consisting of a hybrid solar photovoltaic-thermal (PV/T) collector system that includes Phase Change Material in its back layer. The whole model is described focusing on the mathematical representation of the PCM layer and its associated non-linear behaviour. Main modelling assumptions are based on an energy balance for the PCM and a simple representation of the phase change process through the parametrization of the h-T curve. The thermal resistance between the absorber and the PCM layer is identified as a key model parameter, and its influence is demonstrated in a preliminary simulation analysis of different designs. Thus, the model developed within this work provides interesting for integration into energy simulations, enabling contributions to the design and smart operation of sustainable heating and power systems.