scholarly journals Investigation of orientation impact on electrical power of bifacial solar elements

Author(s):  
V. V. Wysochin ◽  
V. R. Nikulshin ◽  
A. E. Denysova

Purpose. To develop the integrated mathematical model for definition of bifacial solar element rational power operation in the various operation conditions caused by orientation of solar panels and power influence. Methodology. We have proposed the method of definition of bifacial solar elements irradiation and temperature mode and also electric power production at various orientation of panels. Results. We have made analytical investigations of temperature operation conditions of solar elements and their influence on electrical power for various panels orientation in space. Features of irradiation of the forward and back parts of solar panels, conditions of a temperature operating mode and its influence on electric power production are shown. Possibilities of rational conditions of spatial panels orientation are considered. Originality. We have suggested and proved the model of definition bifacial irradiation solar panels and thermal conditions of electric power production and also rational conditions of spatial orientation of panels. Practical value. The developed by us methodology as well as results of its application, allows to choose rational architecture of a solar power station with high efficiency.

2018 ◽  
Vol 14 (2) ◽  
pp. 9-14 ◽  
Author(s):  
Tomáš Skrúcaný ◽  
Saša Milojević ◽  
Štefánia Semanová ◽  
Tomáš Čechovič ◽  
Tomasz Figlus ◽  
...  

Abstract The article deals with the problem of electric power production in terms of environmental impact, in particular the energy efficiency of its production to utilize primary sources. The efficiency of its production directly depends on the composition of primary sources and technologies used. Difference in efficiency by converting various forms of energy into electrical power and their ratio in the use directly affect the resulting efficiency, production of emissions and thus the environmental impact. Electric traction, its production, is burdened less efficient than other types of tractions used in transport, but at the final reconciliation of their consumption in vehicles, this difference decreases or delays because the vehicles themselves work with different conversion efficiency of its traction on mechanical work, vehicle driving.


2005 ◽  
Author(s):  
Philip MacDonald ◽  
Jacopo Buongiorno ◽  
James Sterbentz ◽  
Cliff Davis ◽  
Robert Witt ◽  
...  

2021 ◽  
Author(s):  
Hans Lustfeld

Abstract The main advantage of wind-solar power is the electric power production free of CO2. Its main disadvantage is the huge volatility of the system [national electric energy consumption powered by wind-solar power]. In fact, if this power production, averaged over one year, corresponds to the averaged electric consumption and is intended to replace all other electric power generating devices, then controlling the volatility of this system by using storage alone requires huge capacities of about 30TWh, capacities not available in Germany. However, based on German power data over the last six years (2015 till 2020) we show that the required storage capacity is decisively reduced, provided i) a surplus of wind-solar power is supplied, ii) smart meters are installed, iii) a different kind of wind turbines and solar panels is partially used, iv) a novel function describing this volatile system, is introduced. The new function, in turn, depends on three characteristic numbers, which means, that the volatility of this system is characterized by those numbers. When applying our schemes the results suggest that all the present electric energy in Germany can be obtained from controlled wind-solar power. And our results indicate that controlled wind-solar power can produce the energy for transportation, warm water, space heating and in part for process heating, requirering an increase of the electric energy production by a factor of 5. Then, however, a huge number of wind turbines and solar panels is required changing the appearance of German landscapes fundamentally.


2019 ◽  
Vol 42 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Hossein Ghezel-Ayagh ◽  
Jennifer Hunt ◽  
Stephen Jolly ◽  
Dilip Patel ◽  
Robert Sanderson

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