Performance analysis of a photovoltaic heat pump

Ji, Jie; Liu, Keliang; Chow, Tommy W. S.; Pei, Gang; He, Wei; He, Hanfeng

doi:10.1016/j.apenergy.2008.01.003

Cited by 152 publications

(45 citation statements)

References 18 publications

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“…The electric power consumption of compressor CP P and the heat transfer of a condenser CD Q have been derived in [13,14,18,19]. Based on the mathematical formulation of PVTA-HPWH system, a simulation model is built in the MATLAB/Simulink environment.…”

Section: Stc Scmentioning

confidence: 99%

“…Ito and his team [10,11] have carried out continuous experimental studies on PVT-SAHP systems. Ji and his team have conducted some experimental evaluations of PVT-SAHP systems and validated them with a mathematical model [12][13][14]. Some improvements in the evaporator of PVT-SAHP systems based on theoretical simulation have been reported [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Design and Evaluation of a Photovoltaic/Thermal-Assisted Heat Pump Water Heating System

Tsai

2014

Energies

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This paper presents the design, modelling and performance evaluation of a photovoltaic/thermal-assisted heat pump water heating (PVTA-HPWH) system. The cooling effect of a refrigerant simultaneously enhances the PVT efficiency and effectively improves the coefficient of performance (COP) of the HPWH system. The proposed model was built in the MATLAB/Simulink environment by considering the reciprocal energy exchange between a PVT evaporator and a HPWH system. In addition, the power consumption needs of the HPWH are provided by the PV electricity using a model-based control methodology. System performance is evaluated through a real field test. The results have demonstrated the power autarchy of the proposed PVTA-HPWH system with better PVT efficiency and COP. In addition, the good agreement between the model simulation and the experimental measurements demonstrate the proposed model with sufficient confidence.

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Section: Stc Scmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of a Photovoltaic/Thermal-Assisted Heat Pump Water Heating System

Tsai

2014

Energies

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“…In the above computation, the tube element division using 'equal enthalpy' rather than 'equal length' was to avoid the simultaneous occurrence of single-and two-phase flows at the same tube element. More detailed descriptions of the above numerical process can be found in Ji et al [19].…”

Section: Simulation Runsmentioning

confidence: 99%

Modeling and application of direct-expansion solar-assisted heat pump for water heating in subtropical Hong Kong

et al. 2010

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“…An experimental investigation of an unglazed PVT evaporator system prototype with R-22 as the refrigerant was conducted. A winter-day test showed a peak COP of 10.4 and an average value of 5.4 with a condenser water supply temperature of 20 o C [13][14]. Moreover, mathematical models based on a distributed parameter approach were developed [15][16].…”

Section: Introductionmentioning

confidence: 99%