Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system

Fan, Yi; Zhao, Xudong; Han, Zhonghe; Li, Jing; Бадией, Алиреза; Akhlaghi, Yousef Golizadeh; Liu, Zhijian

doi:10.1016/j.energy.2021.120719

Cited by 57 publications

(21 citation statements)

References 72 publications

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“…In particular, they presented different integration schematics and possible improvements to be applied to make the technology more attractive. Fan et al [ 20 ] focused the investigation of the most recent progresses in SAHP, trying to identify the most critical technology challenges and presenting a new technology to efficiently couple solar technologies with heat pumps. Sezen et al [ 21 ] approached the review of SAHP applications focusing on the effect of ambient conditions over the overall achievable performance, in order to identify the most relevant parameters to consider and optimize the applicability of SAHPs under different climates.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Potential of Solar‐Assisted Heat Pumps: Technical, Market, and Social Acceptance Aspects

2022

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Solar‐assisted heat pumps have the potential to increase the share of renewables in the energy systems for several cases, or to increase the flexibility of smart grids and integrated thermal‐electric grids. The development of such systems requires a comprehensive approach in which technical, market, and social acceptance are all tackled at the same time. Such a holistic approach is the main objective of the present review article. To do so, an investigation is performed by categorizing the integration approaches reported in the literature, exploiting the solar source either as a low‐temperature evaporator source or as supporting the condenser during heating operation. Furthermore, hybrid integration schematics and dual‐source approaches are discussed. Market and social aspects complete the analysis, with the aim of finally identifying the current status; the main drivers and challenges are also addressed. The reported results confirm that the exploitation of solar thermal energy can increase the achievable performance of heat pumps in a broad range of climates. A favorable regulatory/financial framework and informative campaigns for businesspersons and the wide public have been identified as the main solutions to maximize the deployment of the technology in the coming years.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Potential of Solar‐Assisted Heat Pumps: Technical, Market, and Social Acceptance Aspects

2022

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“…Recently, a review of the solar-assisted heat pump technology identified the multisource heat pump and its control logic as one of the key technological challenges for the present and the future of this technology [17].…”

Section: Introductionmentioning

confidence: 99%

The Control of Renewable Energies to Improve the Performance of Multisource Heat Pump Systems: A Two-Case Study

2021

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In new and refurbished buildings, different energy sources are usually exploited to reach the Near Zero Energy Building target. Heat pumps and renewables are the most common adopted technologies. The coupling of the different components with a control logic conceived to exploit all energy contributions causes an implied design complexity. In this paper, two case studies were reported regarding the use of multisource heat pump systems: as main novelties, the correct design of the solar field (thermal or photovoltaic/thermal) in relation with the other sources (ground heat exchangers, ventilation heat recovery) for a given building and climate was reported in order to balance the energy drawn and injected into the ground around the year, and to attempt to reach the independency from the electric grid. Moreover, the relatively complex (compared to conventional heating or cooling) system controlling for multisource heat pump plants was simulated. The paper reported on the design of the plant, of the control logic, and the energy performance of two original multisource heat pump systems by means of dynamic simulation. In one case, real measured data were available as well. Very high primary energy ratios were obtained due to suitable control logics of the multisource plants, around 1.4 (based on measured data) and 4.7 (based on simulated data) for the first and second case, respectively. As a consequence, non-renewable primary energy consumptions of 37 and 3.9 kWh m−2 y−1 were determined, respectively.

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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%

“…Yang et al [11] noted that the performance of solar-assisted air source heat pumps (SAHPs) was affected by many factors, including system configuration, component size, working fluid, working conditions, and weather conditions. Fan et al [12] studied the development of SAHP and recommended future research focus on multi-source heat pump solutions using heat storage and exchange units (HSEU) or using waste heat and renewable energy to achieve higher COP. 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.…”

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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Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system

Cited by 57 publications

References 72 publications

Analysis of the Potential of Solar‐Assisted Heat Pumps: Technical, Market, and Social Acceptance Aspects

Analysis of the Potential of Solar‐Assisted Heat Pumps: Technical, Market, and Social Acceptance Aspects

The Control of Renewable Energies to Improve the Performance of Multisource Heat Pump Systems: A Two-Case Study

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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