Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
ENERGY ANALYSIS OF HYBRID PV-T SOLAR ASSITED HEAT PUMP VERSUS TRADITIONAL PV PANEL AND VACUUM SOLAR HEATER.
Submission Author:
Giovanni Augusto Petrucci , MG
Co-Authors:
Giovanni Augusto Petrucci, Juan Jose Garcia Pabon
Presenter: Giovanni Augusto Petrucci
doi://10.26678/ABCM.COBEM2023.COB2023-0990
Abstract
OPTIMIZATION AND CONTROL OF A HYBRID SYSTEM OF HEAT PUMP AND PHOTOVOLTAIC PANEL FOR SOLAR HEATING AND ELECTRICITY. Giovanni Augusto Petrucci UNIFEI – Universidade Federal de Itajubá E-mail:d2021102383@unifei.edu.br Juan José Garcia Pabon UNIFEI – Universidade Federal de Itajubá E-mail:jjgp@unifei.edu.br Luiz Machado Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, Nº 6627, Belo Horizonte – MG. luizm@ufmg.br This article explores the significance of the energy transition in the global context, emphasizing the importance of renewable energy sources in meeting environmental and resource challenges. Brazil's role as a leader in clean energy, particularly solar energy, is highlighted. The article discusses the need for energy policies that priorities low-carbon transitions and introduces the concept of cogeneration, specifically the photovoltaic thermal panel with heat pump system (PV-T BC), as a promising technology. The methodology section describes the mathematical description and calculations involved in the PV-T BC system, covering key components such as the evaporator, compressor and condenser. The flow diagram of the system's operation is presented and equations are provided to determine efficiency and energy balances. A scenario analysis is carried out to compare three energy scenarios to electricity and domestic hot water production: PV-T BC, and PV panel with an electric heater, and PV panel with solar collector heater. The results indicate that the PV-T BC system is highly efficient, satisfying both hot water and electricity needs, while the other scenarios have limitations. The study shows that the PV-T BC configuration increases the efficiency of the PV panel by around 79.85 per cent. This results in a 56.38 per cent increase in the production of electricity capable of supplying the energy consumed by the compressor. The final temperature of the tank in the PV-T BC system is higher than the temperature of the vacuum solar heater, with an average difference of 10.5°C. In conclusion, the PV-T system with a heat pump is an efficient and environmentally friendly option for the simultaneous production of hot water and electricity. It outperforms the other scenarios in terms of efficiency and sustainability, despite the higher initial costs. The article emphasizes the importance of considering both energy efficiency and environmental impact in energy transition strategies.
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