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Energies 2014, 7(5), 3319-3338; doi:10.3390/en7053319
Article

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

Received: 13 March 2014; in revised form: 6 May 2014 / Accepted: 12 May 2014 / Published: 20 May 2014
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Abstract: 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.
Keywords: photovoltaic/thermal-assisted heat pump water heating (PVTA-HPWH); PVT evaporator; coefficient of performance (COP) photovoltaic/thermal-assisted heat pump water heating (PVTA-HPWH); PVT evaporator; coefficient of performance (COP)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Tsai, H.-L. Design and Evaluation of a Photovoltaic/Thermal-Assisted Heat Pump Water Heating System. Energies 2014, 7, 3319-3338.

AMA Style

Tsai H-L. Design and Evaluation of a Photovoltaic/Thermal-Assisted Heat Pump Water Heating System. Energies. 2014; 7(5):3319-3338.

Chicago/Turabian Style

Tsai, Huan-Liang. 2014. "Design and Evaluation of a Photovoltaic/Thermal-Assisted Heat Pump Water Heating System." Energies 7, no. 5: 3319-3338.


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