An assessment of the solar resource for Durban, South Africa

Zawilska, E.; Brooks, Michael J.

doi:10.1016/j.renene.2011.05.023

Cited by 57 publications

(27 citation statements)

References 28 publications

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“…Zawilska and Brooks [39] found that for Durban, an annual global horizontal insolation, S H , of 1 624 kWh/m 2 and an annual direct normal insolation, S I , of 1 850 kWh/m 2 can be expected. The annual direct normal insolation value is higher than the results found for Durban in Table 2.…”

Section: Locationmentioning

confidence: 99%

“…Zawilska and Brooks [39] did an assessment of the solar resource for Durban, which is also used for comparison. Zawilska and Brooks [39] found that for Durban, an annual global horizontal insolation, S H , of 1 624 kWh/m 2 and an annual direct normal insolation, S I , of 1 850 kWh/m 2 can be expected.…”

Section: Locationmentioning

confidence: 99%

“…The annual direct normal insolation value is higher than the results found for Durban in Table 2. It should be noted that the two Durban measuring stations considered in this work are located west of Durban, while Zawilska and Brooks [39] used measured data from a station located south of Durban. From inspection of the DNI map from GeoSun Africa [38], solar irradiance levels west of Durban are considered to be lower than for other places in Durban.…”

Section: Locationmentioning

confidence: 99%

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Optimum tilt and azimuth angles for fixed solar collectors in South Africa using measured data

Roux

2016

Renewable Energy

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The solar resource in South Africa is among the best in the world. South Africa has seen an increase in local and international investment in solar power. The optimum angles at which a solar collector should be mounted are often debated. Similar publications on this topic often rely on mathematical models of solar resource rather than measured data. Measured data is preferred since the effects of pollution and weather are included. In this work, recently measured data from nine measuring stations in the Southern African Universities Radiometric Network (SAURAN) equipped with pyranometers and pyrheliometers are considered. The data is used to calculate the annual solar insolation on fixed collectors at all possible installation angles. SolTrace, a ray-tracing software, is used for validation. Relative to a horizontally-fixed collector, the annual solar insolation is 10% more for optimally-fixed collectors and 45% more for solar-tracking collectors. The effects of tilt and azimuth angles are presented on contour plots, which are convenient for cost analysis and the determination of the annual insolation on building surfaces. The optimum azimuth angle is a function of the longitude angle minus the absolute latitude angle, which suggests that frontal and convective precipitation effects influence the optimum azimuth angle.

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Section: Locationmentioning

confidence: 99%

Section: Locationmentioning

confidence: 99%

Section: Locationmentioning

confidence: 99%

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Optimum tilt and azimuth angles for fixed solar collectors in South Africa using measured data

Roux

2016

Renewable Energy

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“…. Reference [17] shows that Abu Dhabi has the highest GSR among northern hemisphere cities in most months of the year except in June and July where Mosul (Iraq) and Tunis (Tunisia) show higher values. Moreover, our GSR data are more reliable as they are predicted based on 7 years of measured data.…”

Section: Global Solar Radiation Modelsmentioning

confidence: 99%

Global and Diffuse Solar Radiation in the United Arab Emirates

Hejase¹,

Assi²

2013

IJESD

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Abstract-This paper presents empirical regression models for predicting the daily and monthly average global solar radiation in the United Arab Emirates (UAE) based on 9-year measured data. It also computes the diffuse solar radiation based on well-established models. The UAE enjoys plenty of sunny days with an annual average of 9.6 daily sunshine hours. This attests to the abundance of solar and its potential to produce clean energy sources.

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“…water/space heating systems, solar dryers, solar stills and In order to know and evaluate the potential of solar measured solar radiation data at various parts of the globe energy in Yazd province of Iran, this study presents an [7][8][9][10][11][12]. Besides, several investigations have been analysis of horizontal global solar radiation (HGR), performed to enlighten different aspects of solar radiation clearness index (CI), sunshine duration (SD) and ambient in Iran, from which references are made here only to some temperature (AT) in four very well distributed locations in of them.…”

Section: Introductionmentioning

confidence: 99%