Performances of PV/T solar-assisted heat pump system

LI Guanqun; SUN Xiaolin; CHEN Jinfeng; DAI Yanjun

doi:10.11949/j.issn.0438-1157.20161398

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Performances of PV/T solar-assisted heat pump system

更新时间：2025-11-26

- Performances of PV/T solar-assisted heat pump system
- CIESC Journal Issue S2, Pages: 291-297(2016)
- 作者机构：
  
  上海交通大学制冷与低温工程研究所,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161398
  CLC： K519
- Online First：30 December 2016，
  
  Published：30 December 2016
- 稿件说明：
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LI Guanqun, SUN Xiaolin, CHEN Jinfeng, et al. Performances of PV/T solar-assisted heat pump system[J]. CIESC Journal, 2016, (S2): 291-297.
DOI：

LI Guanqun, SUN Xiaolin, CHEN Jinfeng, et al. Performances of PV/T solar-assisted heat pump system[J]. CIESC Journal, 2016, (S2): 291-297. DOI： 10.11949/j.issn.0438-1157.20161398.

摘要

建立了光电/光热一体化（PV/T）太阳能热泵的数学模型，利用直膨式太阳能热泵实验中获得的数据对模型进行校核，结果显示，模型的计算误差在5%左右。据计算可知，在太阳辐射良好的情况下，PV/T太阳能热泵的COP可达到5以上。在不同的辐射强度下，比较PV/T太阳能热泵与直膨式太阳能热泵的性能，随着太阳辐射强度的提高，系统COP随之提高，热电综合COP平均为7.4，高于直膨式太阳能热泵的COP。结果显示，PV/T太阳能热泵有利于降低系统的能耗，提高光伏组件的光电转化效率，较直膨式太阳能热泵更具节能优势。

Abstract

Solar photovoltaic/thermal integrated heat pump(PV/T-HP) is expected to realize comprehensive utilization of photovoltaics and thermal.To analyze the performance of PV/T-HP

mathematical models of PV/T evaporator

compressor

water tank and thermal expansion valve are established respectively and linked to form a complete thermodynamic cycle based on energy conservation

mass conservation equation.Simulation is carried out through MATLAB.The model accuracy is validated through direct expansion solar assisted heat pump(DX-SHAP) experiments.The result shows that the simulation error is about 5%

which is acceptable.Comparing the performance of PV/T-HP and DX-SHAP

with the rise in solar radiation intensity

COP both increases.With high solar radiation intensity

COP of PV/T-HP can be more than 5.The comprehensive COP of PV/T-HP is 7.4 on average

which is higher than that of DX-SHAP.The result shows that

PV/T-HP is conductive to reduce energy consumption of the system and improve the photoelectric conversion efficiency of photovoltaic modules

so it has more benefit on energy-saving.

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