ITES-MES numerical model

According to the main needs (PV/T-PCMs cooling, space heating/cooling, energy storage), a preliminary layout/design of a parametrized MES plant will be numerically implemented in the commercial software TRNSYS, to test different conditions, e.g. heating/cooling requirements according different building energy label and/or climate zones, effects of different PCM performance. The model will propose and check preliminary control rules to manage the full thermal system that will be then evaluated and improved in WP4. The model will need the development of new routines (“types” in TRNSYS) to represent the PV/T-PCM system and the Flat-Panel/PCM ground heat exchanger, whereas the building requirement and the water-to-water heat pump are already available in the numerical suite. A first routine will be developed to characterize the new PV/T system; it will be implemented with modules already available in TRNSYS for standard application, as partially modified and adapted to represent the new PV/T behaviour in terms of energy and thermal performance. A second routine will then be implemented for solving the Flat-Panel heat transfer in the ground by mean of Green Functions methodology , already programmed in FORTRAN language that is compatible with TRNSYS. Finally, the PCM effect will be generalized in a third routine, based on the equivalent heat capacity methodology, to couple with the previous 2 modules. As characterized in WP2 and Task 3.1, behaviour and performance of different PCM installations will be numerically implemented in the PV/T-PCMs, floor and flat-panel types, respectively to analyse the impact and to maximize the overall performance. This will be completed under task 3.2.