Wind loads on stand-off photovoltaic systems on pitched roofs

Geurts, C.P.W.; Blackmore, Paul

doi:10.1016/j.jweia.2013.08.016

Cited by 28 publications

(17 citation statements)

References 6 publications

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“…Although this thickness was more than the size of the original panels, its effect on the wind loads is negligible, as stated by Geurts and Blackmore. 29 The SP models were connected to the support column with bolt-nut connection and the support column mounted on the turntable. The inclination angle of the panel adjusted with a bolt-nut connection, and the turntable allowed all wind directions to be simulated by rotating the model in the wind tunnel to the appropriate angle.…”

Section: Experimental Set-up and Instrumentationmentioning

confidence: 99%

Experimental study of aerodynamic loads on ground-mounted solar panel arrays: The panel spacing and inclination angle effect

Yemenici

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The influence of panel inclination, wind direction, and longitudinal panel spacing on the wind loads of the model of ground-mounted solar panel arrays scaled 1:20 in a wind tunnel was investigated for a Reynolds number of 1.3 × 105. The experiments were carried out at the panel inclination of 25° and 45°, dimensionless panel spacing in tandem of 0.5 and 1, and the wind directions of the incoming flow were varied from 0° to 180° at 30° intervals. A constant temperature anemometer was used to measure the velocity and turbulence intensities, and a pressure scanner system measured static pressures. The results indicated that the net pressure coefficients of the solar panels were increased with the panel inclination angle and spacing between solar panels, and the maximum wind loads were obtained on the first windward panel. It was also observed that in terms of maximum uplift and drag, 180° and 0° was found to be the critical wind direction, respectively. In contrast, in terms of overturning moments, 30° and 150° were the critical wind directions.

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Section: Experimental Set-up and Instrumentationmentioning

confidence: 99%

Experimental study of aerodynamic loads on ground-mounted solar panel arrays: The panel spacing and inclination angle effect

Yemenici

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Alrawashdeh and Stathopoulos, 2019; Cao et al, 2013; Geurts and Van Bentum, 2007; Kopp, 2014; Kopp et al, 2012; Pratt and Kopp, 2013) and slope-roof buildings (e.g. Aly and Bitsuamlak, 2014; Geurts and Blackmore, 2013; Ginger et al, 2011; Stenabaugh et al, 2015). The effects of various parameters, such as array tilt angle, array spacing, array size, array location, setback to roof edges, etc, have been discussed in these studies.…”

Section: Introductionmentioning

confidence: 99%

Comparisons of design wind pressures on roof-mounted solar arrays between wind tunnel tests and codes and standards

Wang

Yang

Hui

2020

Advances in Structural Engineering

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The current codes and standards concerning wind loads on roof-mounted solar panels are discussed and summarized. Wind pressures on flat- and slope-roof-mounted solar arrays obtained from wind tunnel tests are compared with the recommended design values in ASCE 7-16 and JIS C 8955: 2017. Different parameters, including building side ratio, aspect ratio and parapet height, are examined. Results show that the largest wind pressures on flat-roof-mounted solar panels of all zones in ASCE 7-16 tend to be 10% to 26% smaller than the experimental results when normalized tributary area An is larger than 103. Uplift wind forces on flat-roof-mounted solar panels in downstream regions obtained from experiments can be larger than the recommended values in JIS C 8955: 2017 for adverse wind, but downward force coefficients are basically smaller than those in JIS C 8955: 2017 for fair wind. 40% to 60% increase on the pressure equalization factor for slope-roof-mounted solar panels is suggested for the potential refinement of ASCE 7-16 based on this study. Meanwhile, proposed pressures of slope-roof-mounted solar panels in JIS C 8955: 2017 might be too conservative according of experimental results.

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“…During the last decades, several studies of wind loads on PV panels on roofs-mounted have been developed through wind tunnel tests (Aly and Bitsuamlak 2013b, Bienkiewicz and Endo 2009, Bronkhorst et al 2010, Ginger et al 2011, Radu and Axinte 1989, Radu et al 1986, Stathopoulos et al 2015, Stathopoulos et al 2014, Stenabaugh et al 2015, Wood et al 2001, full scale measurements (Geurts and Blackmore 2013) and numerical simulation (Banks 2013, Bienkiewicz and Endo 2009, Bronkhorst et al 2010. Detailed features of some of these works can be found at the literature review conducted by Stathopoulos et al (2012).…”

Section: Introductionmentioning

confidence: 99%

Experimentos en túnel de viento sobre paneles fotovoltaicos montados en el suelo

López¹,

Parnás²,

Cataldo³

2019

Rev. ing. constr.

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Wind loads on stand-off photovoltaic systems on pitched roofs

Cited by 28 publications

References 6 publications

Experimental study of aerodynamic loads on ground-mounted solar panel arrays: The panel spacing and inclination angle effect

Experimental study of aerodynamic loads on ground-mounted solar panel arrays: The panel spacing and inclination angle effect

Comparisons of design wind pressures on roof-mounted solar arrays between wind tunnel tests and codes and standards

Experimentos en túnel de viento sobre paneles fotovoltaicos montados en el suelo

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