Assessment of energy performance of semi-transparent PV insulating glass units using a validated simulation model

This study evaluated the energy performance of an a-Si semi-transparent PV insulating glass unit (IGU) via numerical simulation and experimental tests. Combined with the measured optical and electrical characteristics of the PV laminate, an integrated model was developed to simulate the overall energy performance of the PV IGU in EnergyPlus. Outdoor experiments were conducted to validate the accuracy of the simulation model. The proper consistency between the simulation results and the experimental data indicated that the simulation model was reliable for predicting the overall energy performance of PV IGU. With the validated model, a sensitivity analysis was conducted to investigate the influences of air gap depth and rear side glass, and an optimal design scheme was proposed to maximize the energy efficiency of PV IGU in Hong Kong. Finally, the energy saving potential of the optimized PV IGU compared to the other commonly used window systems was evaluated. It was found that the energy saving potential of the optimized PV IGU was 25.3% and 10.7%, respectively, compared to the single clear glass window and the Low-E glass window. The methodology developed in this study is expected to provide a useful reference for simulating the energy performance of PV IGU.

[1]  Kwang Ho Lee,et al.  An experimental study on the annual surface temperature characteristics of amorphous silicon BIPV window , 2013 .

[2]  Nalanie Mithraratne,et al.  Energy analysis of semi-transparent BIPV in Singapore buildings , 2013 .

[3]  S. Riffat,et al.  Thermal performance investigation of heat insulation solar glass: A comparative experimental study , 2015 .

[4]  Young Tae Chae,et al.  Building energy performance evaluation of building integrated photovoltaic (BIPV) window with semi-transparent solar cells , 2014 .

[5]  E. Caamaño-Martín,et al.  Integral energy performance characterization of semi-transparent photovoltaic elements for building integration under real operation conditions , 2014 .

[6]  Bjørn Petter Jelle,et al.  Building integrated photovoltaic products: A state-of-the-art review and future research opportunities , 2012 .

[7]  Lin Lu,et al.  Overall energy performance of semi-transparent single-glazed photovoltaic (PV) window for a typical office in Hong Kong , 2013 .

[8]  Sung-Jin Lee,et al.  Power output analysis of transparent thin-film module in building integrated photovoltaic system (BIPV) , 2008 .

[9]  Tin-Tai Chow,et al.  Potential application of “see-through” solar cells in ventilated glazing in Hong Kong , 2009 .

[10]  Minoru Mizuno,et al.  Semi-transparent PV: Thermal performance, power generation, daylight modelling and energy saving potential in a residential application , 2008 .

[11]  Hongxing Yang,et al.  Validation of the Sandia model with indoor and outdoor measurements for semi-transparent amorphous silicon PV modules , 2015 .

[12]  Minoru Mizuno,et al.  Field Study and Modeling of Semi-Transparent PV in Power, Thermal and Optical Aspects , 2005 .

[13]  Takahiko Miyazaki,et al.  Energy savings of office buildings by the use of semi-transparent solar cells for windows , 2005 .

[14]  Hongxing Yang,et al.  An experimental study of the thermal performance of a novel photovoltaic double-skin facade in Hong Kong , 2013 .

[15]  Paul Raftery,et al.  A review of methods to match building energy simulation models to measured data , 2014 .

[16]  Hongxing Yang,et al.  Performance of ventilated double-sided PV façade compared with conventional clear glass façade , 2013 .

[17]  William E. Boyson,et al.  Photovoltaic array performance model. , 2004 .

[18]  Danny H.W. Li,et al.  Energy and cost analysis of semi-transparent photovoltaic in office buildings , 2009 .

[19]  Hongxing Yang,et al.  Numerical evaluation of the mixed convective heat transfer in a double-pane window integrated with see-through a-Si PV cells with low-e coatings , 2010 .

[20]  Wei Sun,et al.  Experimental and numerical investigation on the performance of amorphous silicon photovoltaics window in East China , 2011 .

[21]  Ranko Goic,et al.  review of solar photovoltaic technologies , 2011 .

[22]  K. F. Fong,et al.  A Comparative Study of PV Glazing Performance in Warm Climate , 2009 .

[23]  Hongxing Yang,et al.  Thermal behavior of a novel type see-through glazing system with integrated PV cells , 2009 .

[24]  Hongxing Yang,et al.  Comparative study of the thermal and power performances of a semi-transparent photovoltaic façade under different ventilation modes , 2015 .

[25]  Andreas Wagner,et al.  Semi-transparent PV windows: A study for office buildings in Brazil , 2013 .

[26]  Erdem Cuce,et al.  Thermal insulation, power generation, lighting and energy saving performance of heat insulation solar glass as a curtain wall application in Taiwan: A comparative experimental study , 2015 .

[27]  Hongxing Yang,et al.  Developing a method and simulation model for evaluating the overall energy performance of a ventilated semi‐transparent photovoltaic double‐skin facade , 2016 .

[28]  S. Riffat,et al.  Performance investigation of heat insulation solar glass for low-carbon buildings , 2014 .

[29]  F. C Winkelmann Daylighting Calculation in DOE-2 , 1982 .

[30]  Ying Huang,et al.  Building-integrated photovoltaics (BIPV) in architectural design in China , 2011 .

[31]  Hongxing Yang,et al.  Study on thermal performance of semi-transparent building-integrated photovoltaic glazings , 2008 .

[32]  Po-Chun Chen,et al.  Heat insulation solar glass and application on energy efficiency buildings , 2014 .

[33]  Shen Xu,et al.  Energy performance comparison among see-through amorphous-silicon PV (photovoltaic) glazings and traditional glazings under different architectural conditions in China , 2015 .

[34]  Hongxing Yang,et al.  Numerical investigation of the energy saving potential of a semi-transparent photovoltaic double-skin facade in a cool-summer Mediterranean climate , 2016 .

[35]  Wei He,et al.  Performance evaluation of a PV ventilated window applying to office building of Hong Kong , 2007 .