Sizing an Electrical Storage in Combination with Thermochemical Storage for a PVT-Driven Energy System in a Residential Application
Abstract
This work is focused on sizing electrical storage based on Li-ion batteries in combination with a thermochemical (TCM) storage for a system, driven by photovoltaic thermal (PVT) collectors coupled to a vapor compression heat pump, that provides heating, cooling, domestic hot water (DHW) and electricity in residential buildigs. A sensitivity analysis of the electrical storage system is performed considering two sizes for the TCM storage to minimize the electrical requirement from the grid. The analysis is conducted through a simplified model implemented in the dynamic simulation software TRNSYS. This model uses as input the base electrical load profiles for the building and the TCM subsystem. The electrical profiles linked to the TCM components are obtained from a more detailed model developed in Aspen and MATLAB, which considers the thermal loads in the building, and the internal TCM system configuration.