Solar collector tilt angle optimization for solar power plant setup-able sites at Western Himalaya and correlation formulation

Awasthi, Anchal; Kallioğlu, Mehmet Ali; Sharma, Ashutosh; Mohan, Anand; Chauhan, Ranchan; Singh, Tej

doi:10.1007/s10973-022-11345-0

Cited by 12 publications

(3 citation statements)

References 37 publications

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“…Yadav et al 13 suggested a method to compute the OPT in the presence of houses shadow. Similar objectives could be found in [14][15][16] . Mansour et al 17 , a similar study to get the OTA for different cities in Saudi Arabia.…”

supporting

confidence: 71%

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Abdelaal

El‐Fergany

2023

Sci Rep

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The principal target of this work is to compute the optimal tilt angle (OTA) for Photovoltaic (PV) panels. To perform this task, comprehensive simulations are done starting from altering the tilt angle (TA) daily, to use one fixed TA for all the year. The mathematical models for extra-terrestrial radiation (ETR) of both horizontal and inclined surfaces are presented firstly. At a later stage, the optimization formulation for the maximizing the solar radiation (SR) is adapted, and then the daily, monthly, seasonally, half-yearly and optimal fixed TAs are obtained. Although, the daily OTA produces the maximum SR, it is costly and impractical. It is found that altering the TA twice a year at optimal values that are computed as 5° and 50° for Suez city, gives the best results that are very near to the daily altering of the OTA. The difference between the two methods is 1.56% which is very small. Also, the two OTAs has SR better than that of the fixed OTA which is 28° by 7.77%. Also, it is found that the yearly fixed OTA (28°) is nearly equal to the latitude angle of Suez city which is 30°. The two OTAs method of this paper is different from the commonly used method that suggests two TAs. The first TA is used for winter months which is obtained by adding 15° to the latitude angle while the second TA is obtained by subtracting 15° from the latitude angle for the summer months. This commonly used method produces lesser SR than the two OTAs method of this paper. The theoretical work has been proved by an experimental work on two PV systems constructed at 25° and 30° TAs. The results of the experimental work agree with the theoretical results.

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supporting

confidence: 71%

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Abdelaal

El‐Fergany

2023

Sci Rep

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“…Reference [13] suggested a method to compute the OPT in the presence of houses shadow. Similar objectives could be found in [14][15][16]. In [17], a similar study to get the OTA for different cities in Saudi Arabia .In [18], Tiris and Tiris tried to compute the OTA of a collector system depending on the highest SR.…”

Section: Introductionmentioning

confidence: 93%

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Abdelaal

El‐Fergany

2022

Preprint

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The principal target of this work is to compute the optimal tilt angle (OTA) for Photovoltaic (PV) panels. To perform this task, comprehensive simulations are done starting from altering the tilt angle (TA) daily, to use one fixed TA for all the year. The mathematical models for extra-terrestrial radiation (ETR) of both horizontal and inclined surfaces are presented firstly. At a later stage, the optimization formulation for the maximizing the solar radiation (SR) is adapted, and then the daily, monthly, seasonally, half-yearly and optimal fixed TAs are obtained. Although, the daily OTA produces the maximum SR, it is costly and impractical. It is found that altering the TA twice a year at optimal values that are computed as 5o and 50o for Suez city, gives the best results that are very near to the daily altering of the OTA. The difference between the two methods is 1.56% which is very small. Also, the two OTAs has SR better than that of the fixed OTA which is 28o by 7.77%. Also, it is found that the yearly fixed OTA (28o) is nearly equal to the latitude angle of Suez city which is 30o. The two OTAs method of this paper is different from the commonly used method that suggests two TAs. The first TA is used for winter months which is obtained by adding 15o to the latitude angle while the second TA is obtained by subtracting 15o from the latitude angle for the summer months. This commonly used method produces lesser SR than the two OTAs method of this paper. The theoretical work has been proved by an experimental work on two PV systems constructed at 25o and 30o TAs. The results of the experimental work agree with the theoretical results.

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“…Depending on their scale, PVs could bring risks to either local or surrounding environments by the installation and operation of the USFs. USFs on hilly terrain, especially, tend to produce even more stormwater erosion and sediment risks to both local and surrounding regions (Awasthi et al, 2022). These concomitant pressures on the ambient environment obviate the need to consider standardized and science-based regulations (for example, suitable USF designs and storm-water management facilities (Phalane, 2021)) to prevent potential impacts from USF installation and development (Lee, 2019).…”

Section: Implications For Risk Control Of Usfs In Hilly Environmentsmentioning

confidence: 99%

Effect of Solar Farms on Soil Erosion in Hilly Environments: A Modeling Study from the Perspective of Hydrological Connectivity

Liu

et al. 2023

Preprint

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Compared to the growing number of utility-scale solar farms (USFs) sitting in hilly regions, knowledge of the hydrological behaviors in responding to the installation of USFs in these environments remains limited. We present herein a novel model (the Solar-Farm model) to understand the hydrological behaviors following the construction of a USF in the Loess Hilly Region of China, by combining it with an index of hydrological connectivity (HC). Scenarios were designed to estimate the effects of climate and terrain in controlling the effects of the USF on soil erosion, by altering the mean annual precipitation amount, the frequency of precipitation events, and the relief amplitude. Our results show that land use changes (e.g., vegetation removal) incurred a considerable increase in the accumulative soil erosion (22.45%-66.48%) during the installation period. During the 40-year deployment period, photovoltaic panels (PVs) incurred an average of 0.138 m deeper erosion in the USF compared with the background rate without PVs. A wetter climate induced the highest increase (88.25%) in erosion. However, the relief amplitude and precipitation frequency are also confirmed as important controlling factors for soil erosion (increased by 85.42% and 58%, respectively). The HC was increased during both the construction (0.005-0.12) and operation periods (0.149-0.314). Correlation analysis presented that the landscapes with higher HC were more likely to be exposed to the risks of soil erosion. USFs could increase soil erosion by increasing runoff and local HC, and higher background HC in turn could further aggravate the effects of USFs on soil erosion.

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Solar collector tilt angle optimization for solar power plant setup-able sites at Western Himalaya and correlation formulation

Cited by 12 publications

References 37 publications

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Estimation of optimal tilt angles for photovoltaic panels in Egypt with experimental verifications

Effect of Solar Farms on Soil Erosion in Hilly Environments: A Modeling Study from the Perspective of Hydrological Connectivity

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