Integration of a Photovoltaic System with an Electric Heat Pump and Electrical Energy Storage Serving an Office Building

Roselli, Carlo; Tariello, Francesco; Sasso, Maurizio

doi:10.13044/j.sdewes.d6.0248

Cited by 11 publications

(5 citation statements)

References 23 publications

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“…Calise et al [3] proposed a system consisting of a solar-assisted water-to-water reversible HP and minimized the payback time of energy system through a set of control parameters. Roselli et al [4] investigated the integration of PV and electrical storage with HP for an office in Southern Italy and reported higher energy savings.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a heat pump-based energy system exploiting a low GWP refrigerant in different European climates

Abdur Rehman,

Palomba,

Frazzica

et al. 2023

E3S Web Conf.

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The objective of this research is to assess the operation of a heat pump (HP) under varying climatic conditions in Europe. To achieve this, a Dymola model is developed for a solar-assisted reversible water-to-water HP that utilizes a low global warming potential (GWP) refrigerant, R1234ze(E), and includes thermal and electrical energy storage systems. Experimental data is used to validate the primary components of the model. Simulations are conducted for both summer and winter seasons to determine the system’s overall annual performance. The analysis covers energy exchange between the system and the grid and utilizes key performance indicators such as self-sufficiency and self-consumption index. Furthermore, a techno-economic analysis is conducted to determine the payback period of the heating and cooling energy system based on the components’ capital expenditure and available incentives.

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Section: Introductionmentioning

confidence: 99%

Analysis of a heat pump-based energy system exploiting a low GWP refrigerant in different European climates

Abdur Rehman,

Palomba,

Frazzica

et al. 2023

E3S Web Conf.

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“…The incorporation of heat pumps for space heating/cooling and domestic hot water led to a reduction in primary energy demand by 27%. Roselli et al [19] investigated the integration of a PV system with a heat pump and electrical storage for an office in Southern Italy. The energy and environmental performance of the proposed system was evaluated and a reduction in carbon dioxide emissions by 93% was reported, along with high energy savings.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Analysis of a Low-GWP Heat Pump Coupled to Electrical and Thermal Energy Storage to Increase the Share of Renewables across Europe

et al. 2023

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In order to reduce the dependence on fossil fuels in the residential sector, low-carbon-footprint technologies such as heat pumps should be used. To fully exploit solar-assisted heat pumps, an effective control strategy is required. This study employs a low-global-warming-potential (GWP) refrigerant for a water-to-water reversible heat pump, which is assisted by a thermal energy storage tank, photovoltaic (PV) installation, and battery storage system using a dedicated control strategy. The heat pump’s operation is validated against the experimental data. Simulations are carried out for three different climates to analyze the performance of reversible heat pumps across Europe. The reversible heat pump fully meets the summer cooling demand in all three climates, while the heating demand is covered with the help of a backup source. An economic analysis is carried out for three different PV sizes and the results are compared with the reference energy systems. The inclusion of a battery storage system results in high payback times but increases overall flexibility and self-sufficiency.

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“…They studied different scenarios combining PV panel numbers, battery capacity and control logic. Roselli et al [6] evaluated a system able to meet pure electric, space heating and cooling loads of a small office building located in Southern Italy. They analysed the energy and environmental performance of the system by means of a dynamic simulation software (TRNSYS) changing the photovoltaic nominal power from 4.5 to 7.5 kW, battery capacity from 3.2 to 9.6 kWh, and the reference electrical system.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Optimisation of a Solar On-Grid Air Conditioner

et al. 2021

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Solar-powered air conditioners offer a high potential for energy-efficient cooling with a high economic feasibility. They can significantly reduce the energy consumption in the building sector, which is essential to meet the greater ambition of reducing greenhouse gas emissions by 80% in the EU by 2050. This paper presents a computational model development capable of simulating the behaviour of a photovoltaic-assisted heat pump in different locations and working conditions. In addition, this model has been used to optimise a solar on-grid air conditioning system. The generated model has been validated with experimental data obtained in a real facility for a whole summer of operation (more than 100 tested days) in a Mediterranean climate (Alicante, Spain). According to the simulation results, the average Energy Efficiency Ratio (EER) of the system is 16.0, 10.7 and 7.8 in Barcelona, Madrid and Seville, respectively. The optimisation analysis has proven that the severity of the climatic region increases the costs as well as the optimum PV power to drive the AC unit. The obtained values for the the PV power and the annualised cost are 400 W and 506.2 € for Barcelona, 900 W and 536.7 € for Madrid, and 1300 W and 564.7 € for Seville. The annualised cost and the CO2 emission levels are higher for the conventional system (no PV panels) than for the solar on-grid system, regardless of the installed PV power. This difference can be up to 66.64 € (10.55%) and 112.94 kg CO2 (64.83%) per summer season in the case of Seville.

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Integration of a Photovoltaic System with an Electric Heat Pump and Electrical Energy Storage Serving an Office Building

Cited by 11 publications

References 23 publications

Analysis of a heat pump-based energy system exploiting a low GWP refrigerant in different European climates

Analysis of a heat pump-based energy system exploiting a low GWP refrigerant in different European climates

Numerical and Experimental Analysis of a Low-GWP Heat Pump Coupled to Electrical and Thermal Energy Storage to Increase the Share of Renewables across Europe

Performance Analysis and Optimisation of a Solar On-Grid Air Conditioner

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