Solar assisted heat pump system is a technology many discussed in recent years. It represents an important integration in the air-conditioning of buildings due to the following advantages: high renewable energy share, low electricity demand, low primary energy demand, and low CO₂ emission depending on the electricity mix feeding to the heat pump. The objective of this study is to investigate the benefits obtained from the adoption of innovative methods of managing heat pumps in order to increase the consumption of electricity produced from renewable sources. The logics of management induce to use the thermal units largely in times when sustainability of power generation is high by a photovoltaic plant on the building (or by another renewable source connected to the electric smart grid). The logic of the management plan to maintain internal comfort in any condition and manage the hermal storage to accumulate the energy produced that is not immediately used. The study confirms the importance of using integrated management methodologies in order to increase the share of renewable sources used for the energy demand of the new buildings and also in energy-efficient retrofit of existing ones. It was possible to evaluate the influence of operating procedures in different case studies by determining the optimal configuration and its energy benefits.
Increase of photovoltaic self-consumption through innovative managing methods of heat pumps and chillers in buildings
EMMI, GIUSEPPE;
2016-01-01
Abstract
Solar assisted heat pump system is a technology many discussed in recent years. It represents an important integration in the air-conditioning of buildings due to the following advantages: high renewable energy share, low electricity demand, low primary energy demand, and low CO₂ emission depending on the electricity mix feeding to the heat pump. The objective of this study is to investigate the benefits obtained from the adoption of innovative methods of managing heat pumps in order to increase the consumption of electricity produced from renewable sources. The logics of management induce to use the thermal units largely in times when sustainability of power generation is high by a photovoltaic plant on the building (or by another renewable source connected to the electric smart grid). The logic of the management plan to maintain internal comfort in any condition and manage the hermal storage to accumulate the energy produced that is not immediately used. The study confirms the importance of using integrated management methodologies in order to increase the share of renewable sources used for the energy demand of the new buildings and also in energy-efficient retrofit of existing ones. It was possible to evaluate the influence of operating procedures in different case studies by determining the optimal configuration and its energy benefits.
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