Browsing by Author "Perrella, Stefania"

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    Optimization strategies for air conditioning systems based on the integration of heat pumps and renewable sources
    (Università della Calabria, 2024-12-23) Perrella, Stefania; Mundo, Domenico; Arcuri, Natale
    The energy transition is a non-negotiable goal for the planet and future generations. The research examines the crucial need to implement advanced energy solutions to combat climate change and promote sustainability in the building sector. The primary focus is on the integration of heat pumps with renewable energy sources, particularly solar energy, and the utilization of thermal and electric storage systems to enhance the energy efficiency of buildings. The study begins by analysing the European and Italian regulatory frameworks, highlighting policies such as the European Green Deal and the "Fit for 55%" package, which aim to significantly reduce greenhouse gas emissions by promoting renewable energy adoption and energy efficiency. The Italian legislative context, including the Legislative Decree No. 199/2021, emphasizes the need for renewable energy integration in new and significantly renovated buildings. The core of the research explores the functionality, components, and classifications of heat pumps, emphasizing their role in reducing dependency on fossil fuels and minimizing environmental impact. Detailed simulations using the TRNSYS software model various scenarios of HVAC system enhancements, including the replacement of existing systems with solar-assisted heat pumps (SAHPs) and centralized systems with thermal storage. Key findings demonstrate that integrating solar thermal collectors, photovoltaic systems, and thermal storage significantly improves the performance of heat pumps, especially in cold climates where traditional systems may falter. The deployment of advanced control strategies further optimizes energy consumption, reduces CO2 emissions, and enhances energy self-sufficiency. The dissertation also includes comparative analyses of different renewable energy systems, such as PV-assisted heat pumps versus biomass boilers, to determine the most effective configurations for various climatic conditions. The research highlights the critical role of thermal storage in stabilizing energy supply, reducing peak demand, and increasing the resilience of the energy system. Overall, this work provides comprehensive insights into the technological and strategic advancements necessary for the successful integration of heat pumps with renewable energy sources. The findings offer practical recommendations for policymakers, industry stakeholders, and researchers to drive the transition towards a sustainable and resilient built environment.