scholarly journals An economic study of the use of solar energy in the irrigation of reclaimed agricultural lands in Assiut Governorate

2021 ◽  
Vol 99 (3) ◽  
pp. 354-378
Author(s):  
Ehab Sharabin
2020 ◽  
pp. 113-133
Author(s):  
Ibrahim Moukhtar ◽  
Adel Z. El Dein ◽  
Adel A. Elbaset ◽  
Yasunori Mitani

2020 ◽  
Vol 223 ◽  
pp. 113240 ◽  
Author(s):  
Yu Gu ◽  
Qianqian Chen ◽  
Junli Xue ◽  
Zhiyong Tang ◽  
Yuhan Sun ◽  
...  

2019 ◽  
Author(s):  
Mehwish Soomro ◽  
Sheeraz Ahmed Memon ◽  
Irfan Ahmed Memon

Author(s):  
Oscar Flores-Ramírez ◽  
Jimmy Jimenez-Aguas ◽  
Erick Eduardo Huesca-Lazcano ◽  
Gabriel Romero-Rodríguez

The generation of electrical energy by means of photovoltaic solar energy has become the most profitable today. The most important thing for an energy engineer are the calculations, for which an automated calculator in Excel has been designed, where the calculations of a dimensioning for a photovoltaic system interconnected to the electrical power network are summarized, including billing analyzes of the rate you are in and the DAC RATE (High Consumption Domestic), RATE 01, in order to save time and money, when calculating and studying economically, it is highly important to know this type of information Since people only sell projects without any knowledge and damage the reputation of the professional area, with this automated Excel calculator anyone with basic knowledge can manipulate it without any problem, giving an excellent service saving too much time on corrections where that costs money, the system itself graphically explains the generation of the SFVI, economic study and recovery time, the client will have a broad knowledge of what you pay for.


2020 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
محمود فواذ ◽  
مصطفى القبلاوى ◽  
محمد یوسف

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.


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