Photovoltaic-thermal solar-assisted heat pump systems for building applications: Integration and design methods

Miglioli, Alessandro; Aste, N.; Claudio, Del Pero; Leonforte, Fabrizio

doi:10.1016/j.enbenv.2021.07.002

Cited by 55 publications

(21 citation statements)

References 170 publications

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“…Air conditioning systems control the temperature and/or the flow of the air inside the buildings. For this purpose, the most well-known technologies are heat pumps [50]. Heat pumps transfer thermal energy in the opposite direction of heat transfer, through the refrigeration cycle, and may be air-sourced, water-sourced, or ground-sourced depending on the heat source upon which they rely [51].…”

Section: Technologies For Air Conditioningmentioning

confidence: 99%

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State of the Art of Technologies in Adaptive Dynamic Building Envelopes (ADBEs)

et al. 2022

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The design of adaptive façades as complex systems that dynamically respond to weather conditions and occupants’ demands is rapidly increasing in modern constructions since they are highly energy efficient. Adaptive Dynamic Building Envelopes (ADBEs) exploit the benefits of technologies that manage the energy and mass transfer between building and outdoor environments actively and selectively. There is a wide range of technologies used in the design of ADBEs that differ from one another in terms of user controllability and the level of how active or passive their technologies are. This paper provides a systematic search in literature on the technologies devised in the ADBEs, specifying the most prevalent practices, and highlights the most cutting-edge research approximations. The analysis shows more than half of the studies use photovoltaics (PVs) in their design. Using mechanical ventilation and heat pumps were the next popular choices. Moreover, approximately half of the studies were carried out using simulation methods alone, whereas only 13% of studies couple simulations with experimental work. This highlights a clear gap in coupling digital modeling and simulation software with practical field testing and successful mass production.

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Section: Technologies For Air Conditioningmentioning

confidence: 99%

“…Main technologies for ADBEs[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60].…”

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State of the Art of Technologies in Adaptive Dynamic Building Envelopes (ADBEs)

et al. 2022

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“…One of the recent review articles in the title concluded the benefit of the system integration in one sentence by saying overall energy performances are comparable and even better than those of conventional air-source and water-source systems. The integration of PVT collectors and HPs improves the performance of both subsystems, increasing solar energy exploitation and HP efficiency while reducing defrosting cycles in air-source HPs [18]. PVT-HP systems rarely use the exhaust air as the source of heat for the integrated system [19].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Performance Analysis of Direct Photovoltaic Thermal-Assisted Heat Pump Water Heater Using Computational Model

Amibe

Eneyaw

2022

International Journal of Photoenergy

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The photovoltaic thermal system has a limitation in supplying hot water at the required temperature since it requires a supplementary heating system. One such system can be an air source heat pump operated by electricity from a PV/T system, which can be used to raise the temperature of the water preheated by PV/T to the required level. Such type system can also be called a hybrid PV/T-heat pump system, and it delivers thermal (hot water) and electrical energy. The performance of the hybrid PV/T-heat pump system was analyzed using the computational model for two Ethiopian cities, namely, Addis Ababa and Dire Dawa, which represent the highland and lowland regions, respectively. The simulation was conducted by inputting climatic data, daily hot water demand, and hourly hot water consumption patterns. Also, system design parameters such as PV/T area and peak Watt, PV/T warm water tank volume, air source heat pump water heater COP as a function of ambient temperature and circulating water temperature, and heat pump hot water tank volume. Besides, the effect of hot water consumption patterns (variability effect in three dissimilar cases constant, restaurant, and motel) on the system performance was examined. In addition, the effect of electric energy supply to the compressor of the heat pump using battery storage on the system performance was also investigated. In those diverse situations, the system in most of the cases generated hot water above 55°C and scored a COP of 3. The maximum value of hot water end-use efficiency of 66% was also obtained by making the hot water tank capacity about 50% of the daily hot water consumption size.

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“…They can transfer heat from natural resources in the human environment, such as air, ground, and water, as well as from sources like industrial or domestic waste [1]. Current research is largely focused on hybrid systems that use heat pumps in combination with solar collectors (SC) or photovoltaic panels (PV) [8][9][10][11][12][13][14], as well as on recovering waste heat and raising its temperature to more useful levels [15][16][17][18][19]. Such solutions allow the increase of energy and economic efficiency of heating and cooling rooms, while bringing significant benefits to the environment.…”

Section: Introductionmentioning

confidence: 99%

“…Sezen et al [13] concluded that parallel and dual-source indirect expansion, solar-assisted heat pumps (IDX-SAHPs) were preferable in high-solar irradiations of about 800 W/m 2 with their DSH mode options. Miglioli et al [14] claimed that a photovoltaicthermal, solar-assisted heat pump (PVT-SAHP) system allowed for a high fraction of building thermal needs covered by renewable energy sources to be reached, as well as for an improvement in performance of both the photovoltaic-thermal collector and the heat pump. The possible applications of absorption heat pumps in waste heat reuse were studied by Xu and Wang [15].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Use of Ground and Air Source Heat Pumps in Different Climatic Conditions on the Example of Selected Cities: Warsaw, Madrid, Riga, and Rome

Ołtarzewska

Krawczyk

2021

Energies

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Heat pumps, an example of one of the most environmentally friendly technologies, can play a key role in the future of sustainable energy. Due to the European Union’s ambitious goals to achieve climate neutrality by 2050, research is currently focused on finding solutions to increase the energy and economic efficiency of heating and cooling with heat pumps to benefit the environment. This paper presents the results of energy simulations for a single-family building located in selected cities—Warsaw (Poland), Madrid (Spain), Riga (Latvia), and Rome (Italy)—as a case study for different climate conditions and energy policy. In each variant, ground and air source heat pumps are considered for heating, cooling, ventilation, and air conditioning (HVAC) purposes. Moreover, we conducted an economic estimation including investment and operating costs, as well as an ecological analysis of carbon dioxide (CO2) emissions. Results show that heat pumps as an energy source for HVAC systems seem to be much more beneficial for Mediterranean-type subtropical climates, than for continental-type climates. The lowest value of total energy demand was obtained in Rome (60 kWh/m2∙rok), while the highest values were recorded in Riga and Warsaw (more than 90 kWh/m2∙rok). In terms of economic and environmental aspects, the use of heat pumps was most advantageous when considering Rome. This paper provides a starting point for further research focusing on increasing the energy and economic efficiency of heat pumps, especially in cold climates, as well as a multi-parameter analysis taking into account national prices, policies regarding development of renewable energy sources, and technical and climatic conditions. It also shows how increasing the share of renewable energy sources (RESs) in the national energy mix contributes to the reduction of CO2 emissions.

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Photovoltaic-thermal solar-assisted heat pump systems for building applications: Integration and design methods

Cited by 55 publications

References 170 publications

State of the Art of Technologies in Adaptive Dynamic Building Envelopes (ADBEs)

State of the Art of Technologies in Adaptive Dynamic Building Envelopes (ADBEs)

Long-Term Performance Analysis of Direct Photovoltaic Thermal-Assisted Heat Pump Water Heater Using Computational Model

Simulation of the Use of Ground and Air Source Heat Pumps in Different Climatic Conditions on the Example of Selected Cities: Warsaw, Madrid, Riga, and Rome

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