scholarly journals Minimum Cost Design of Cellular Networks in Rural Areas With UAVs, Optical Rings, Solar Panels, and Batteries

2019 ◽  
Vol 3 (4) ◽  
pp. 901-918
Author(s):  
Luca Chiaraviglio ◽  
Lavinia Amorosi ◽  
Nicola Blefari-Melazzi ◽  
Paolo Dell'Olmo ◽  
Antonio Lo Mastro ◽  
...  
Keyword(s):  
Cellular Networks ◽  
Rural Areas ◽  
Minimum Cost ◽  
Solar Panels ◽  
Minimum Cost Design

Dynamic Optimization of Steel Catenary Risers Based on Reliability Using Metamodel

2010 ◽  
Author(s):  
Wenqing Zheng ◽  
Hezhen Yang
Keyword(s):  
Dynamic Optimization ◽  
Computational Cost ◽  
Minimum Cost ◽  
Probabilistic Constraints ◽  
Optimization Approach ◽  
Element Analysis ◽  
Steel Catenary Riser ◽  
Reliability Based Design ◽  
Minimum Cost Design ◽  
Steel Catenary Risers

Reliability based design optimization (RBDO) of a steel catenary riser (SCR) using metamodel is investigated. The purpose of the optimization is to find the minimum-cost design subjecting to probabilistic constraints. To reduce the computational cost of the traditional double-loop RBDO, a single-loop RBDO approach is employed. The performance function is approximated by using metamodel to avoid time consuming finite element analysis during the dynamic optimization. The metamodel is constructed though design of experiments (DOE) sampling. In addition, the reliability assessment is carried out by Monte Carlo simulations. The result shows that the RBDO of SCR is a more rational optimization approach compared with traditional deterministic optimization, and using metamodel technique during the dynamic optimization process can significantly decrease the computational expense without sacrificing accuracy.

scholarly journals Photovoltaic solar power for a wastewater electrocoagulation prototype

2020 ◽  
pp. 32-36
Author(s):  
Luis Alberto Cantera-Cantera ◽  
Andrés Calvillo-Téllez
Keyword(s):  
Wastewater Treatment ◽  
Power Supply ◽  
Rural Areas ◽  
Solar Power ◽  
Solar Panels ◽  
Nickel Metal ◽  
Supply Line ◽  
A Current

A photovoltaic solar power supply is presented; it supplies energy to the electrodes of a wastewater treatment prototype by electrocoagulation. The source will be able to supply three voltages levels 10, 20, and 30 volts, with a current of 1000 mA. The system consists of an array of solar panels and Nickel Metal batteries. The amount of energy to be supplied by the solar panels is estimated, the level of storage in batteries is calculated and fed to the electrocoagulation system. The results of an experiment that operates independently of the power supply line and that works in rural areas are presented.

Minimum Cost Design of Large Support Rings

1960 ◽  
Vol 86 (5) ◽  
pp. 25-38
Author(s):  
Kenneth P. Buchert
Keyword(s):  
Minimum Cost ◽  
Minimum Cost Design
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