Abstract
Nowadays buildings are responsible of 36% of CO2 emissions and space heating and cooling alone accounts for 40% of the final energy consumption at European level. In this context, solar-assisted systems represent an important solution to support the decarbonisation pathways in residential sector. In this work, a novel lumped parameter simulation model for photovoltaic thermal hybrid solar collectors developed by Authors as a type of Transient System Simulation (TRNSYS) software is used to carry out computer simulations in different climatic conditions. The model is based on the electrical analogy method to solve the transient heat transfer problem and considers the effect of the thermal capacitances of the elements composing the photovoltaic thermal collector. The simulation tool was also validated with the experimental data in terms of both electrical and thermal power. In this work, a simulation-based analysis is carried out considering three climatic zones in order to evaluate the thermal performance of photovoltaic thermal hybrid solar collectors under different operating conditions.
Highlights
The Intergovernmental Panel on Climate Change (IPCC) [1] has estimated in 2018 that human activities, which have led to increased volumes of greenhouse gases, have caused approximately 1.0°C of global warming above pre-industrial levels, with a likely range of 0.8°C to 1.2°C
A novel lumped parameter simulation model for photovoltaic thermal hybrid solar collectors developed by Authors as a type of Transient System Simulation (TRNSYS) software is used to carry out computer simulations in different climatic conditions
The three case studies were analysed in order to investigate the response of the photovoltaic-thermal collectors (PVT) system to the different climate conditions
Summary
The Intergovernmental Panel on Climate Change (IPCC) [1] has estimated in 2018 that human activities, which have led to increased volumes of greenhouse gases, have caused approximately 1.0°C of global warming above pre-industrial levels, with a likely range of 0.8°C to 1.2°C. Data published by Eurostat revealed that, in 2016, the residential sector represented about 27% of final energy consumption in Italy [2]. It becomes interesting to focus on how the energy used for space heating, space cooling, and domestic hot water production is derived and used, as, in Italy, it accounts alone for nearly 80% of the final energy consumption in the whole residential sector [2]. In this context, the heat pump technology plays a key role in increasing the renewable ratio of the total thermal energy use.
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