Heat Pump Using a Solar Collector With Photovoltaic Modules on the Surface

Ito, Sadasuke; Miura, Nakatsu; Wang, Jin Qi; Nishikawa, Miwako

doi:10.1115/1.2887894

Cited by 45 publications

(18 citation statements)

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“…Recent developments have been reported by [4,13,15] on the integration of heat pumps and photovoltaic technology including the use of photovoltaic solar assisted heat pump systems. A system using a solar-assisted heat pump and a PV/T collector as its evaporator was also reported by Ito et al [17]. They indicated that the heat pump's coefficient of performance (COP) was 6 at a water temperature of 40 • C at the inlet of the evaporator.…”

Section: Introductionmentioning

confidence: 93%

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Modeling and Simulation of a Novel Combined Solar Photovoltaic-Thermal Panel and Heat Pump Hybrid System

Sami

2018

Clean Technol.

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A numerical simulation model for a novel concept of a hybrid composed of photovoltaicthermal solar panels and a heat pump is presented. This concept was developed to assess the performance and energy conversion efficiency of the hybrid system used to produce domestic hot water and electricity. A two-dimensional heat transfer and fluid flow dynamic model was developed to describe the behavior of the hybrid system under different solar irradiance, heat pump boundary conditions and different refrigerants. The model is based on dynamic mass and energy equations coupled with the heat transfer coefficients, and the thermodynamic properties of refrigerants as well as material properties. The model compared fairly to experimental data.

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Section: Introductionmentioning

confidence: 93%

“…In the following the steady state energy balance equations of the water source heat pump are presented as in [23], and [15][16][17][18][19][20][21][22].…”

Section: Heat Pump Modelmentioning

confidence: 99%

Modeling and Simulation of a Novel Combined Solar Photovoltaic-Thermal Panel and Heat Pump Hybrid System

Sami

2018

Clean Technol.

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“…One recent development in the integration of heat pump and photovoltaic technology lies in the use of photovoltaic solar assisted heat pump (PV-SAHP) systems [6][7][8]. Ito et al [9] first proposed the conception of a solar-assisted heat pump system using a photovoltaic/thermal (PV/T) collector as its evaporator. The results indicated that a coefficient of performance (COP) of the heat pump as high as six could be obtained when the water temperature at the inlet of the condenser was at 40 • C in the daytime in winter.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Hybrid Photovoltaic Solar Assisted Loop Heat Pipe/Heat Pump System

Dai

et al. 2017

Applied Sciences

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Abstract:A hybrid photovoltaic solar assisted loop heat pipe/heat pump (PV-SALHP/HP) water heater system has been developed and numerically studied. The system is the combination of loop heat pipe (LHP) mode and heat pump (HP) mode, and the two modes can be run separately or compositely according to the weather conditions. The performances of independent heat pump (HP) mode and hybrid loop heat pipe/heat pump (LHP/HP) mode were simulated and compared. Simulation results showed that on typical sunny days in spring or autumn, using LHP/HP mode could save 40.6% power consumption than HP mode. In addition, the optimal switchover from LHP mode to HP mode was analyzed in different weather conditions for energy saving and the all-year round operating performances of the system were also simulated. The simulation results showed that hybrid LHP/HP mode should be utilized to save electricity on sunny days from March to November and the system can rely on LHP mode alone without any power consumption in July and August. When solar radiation and ambient temperature are low in winter, HP mode should be used.

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“…Furthermore, Ito et al [18] analysed the performance of such a system with photovoltaic cells bonded on the surface of the thermal collectors by conductive silicone. It was found that the photovoltaic modules on the collectors did not influence the performance of the heat pump appreciably.…”

Section: Related Heating Systemsmentioning

confidence: 99%

A Domestic Solar/Heat Pump Heating System Incorporating Latent and Stratified Thermal Storage

Trinkl

̈rner

Hanby

2008

ASME 2008 2nd International Conference on Energy Sustainability, Volume 2

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Both solar and heat pump heating systems are innovative technologies for sustaining ecological heat generation. They are gaining more and more importance due to the accelerating pace of climate change and the rising cost of limited fossil resources. Against this background, a heating system combining solar thermal collectors, heat pump, stratified thermal storage and water/ice latent heat storage has been investigated.In order to investigate and optimise the heating system, a dynamic system simulation model was developed. On this basis, a fundamental control strategy was derived for the overall co-ordination of the heating system with particular regard to the performance of the two storage tanks. In a simulation study, a fundamental investigation of the heating system configuration was carried out and optimisation derived for the system control as well as the selection of components and their dimensioning. The influence of different parameters on the system performance was identified, where the collector area and the latent heat storage volume were found to be the predominant parameters for system dimensioning.For a modern one-family house, a solar collector area of 30m² and a latent heat store volume of 12.5m³ are proposed. In this configuration, the heating system reaches a seasonal performance factor of 4.6, meaning that 78% of the building's and users' heat demand are delivered by solar energy. The results show that the solar / heat pump heating system can give an acceptable performance using up-to-date components in a state-ofthe-art building.A novel but most significant component of the heating system is the latent heat store, working with water / ice as phase change material. For that reason, the store was developed in a systematic manner with special regard to the heat exchangers. Based on a detailed specification and a functional analysis, concept solutions were investigated and evaluated. A sheet matrix heat exchanger was eventually chosen as it fulfils the specialised requirements of the heating system. The heat exchanger's behaviour and its performance during phase change were analysed in laboratory tests. In addition, a storage tank design was developed and a preliminary storage dimensioning carried out for the heating system as defined by the simulations, showing that five polymer tanks with 3.3m³ each and 14 sheet matrix heat exchangers in each tank are required.

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Heat Pump Using a Solar Collector With Photovoltaic Modules on the Surface

Cited by 45 publications

References 0 publications

Modeling and Simulation of a Novel Combined Solar Photovoltaic-Thermal Panel and Heat Pump Hybrid System

Modeling and Simulation of a Novel Combined Solar Photovoltaic-Thermal Panel and Heat Pump Hybrid System

Simulation of Hybrid Photovoltaic Solar Assisted Loop Heat Pipe/Heat Pump System

A Domestic Solar/Heat Pump Heating System Incorporating Latent and Stratified Thermal Storage

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