Title : Propelling energy efficiency and storage through PCM-wall integration in building: Applications scenarios of Tunisia and Italy
Abstract:
In recent years, the integration of heat storage technologies within building enclosures has emerged as a pivotal strategy for harmonizing energy demand with supply. This approach facilitates a more efficient utilization of renewable sources, with a particular focus on harnessing solar energy to address the prevalent issue of excessive energy consumption in buildings. Within this context, our study delves into the assessment of the impact of an innovative Active Photovoltaic/Thermal-Phase Change Material unit (PV/T-PCM wall-unit) on energy retrieval in diverse climates, specifically examining scenarios in both Tunisia and Italy. To conduct a thorough analysis of the PV/T-PCM wall-unit's performance, we developed a specialized numerical program. This program enables an in-depth exploration of energy and exergy relationships, with a specific focus on the characteristics of the melting phase during both the charging and discharging processes. Expanding the scope of our study, we employed the TRNSYS program to conduct a numerical investigation targeting a standard room within contemporary houses in Tunis, Tunisia, and Padova, Italy. In addition to assessing the environmental benefits, our study undertook an economic analysis using the TRNSYS program to evaluate the feasibility of the PV/T-PCM wall-unit. This simulation aimed to scrutinize the reduction in carbon footprint and shed light on the unit's potential as a more sustainable alternative compared to traditional energy recovery systems. The comprehensive evaluation went beyond mere assessment, emphasizing the substantial positive impact of integrating the PV/T-PCM wall unit. Notably, it enhances occupants' thermal comfort by mitigating temperature fluctuations, offering a promising solution for a more sustainable and energy-efficient building environment.
