Experimental studies and performance evaluation of MPPT control strategies for solar-powered water pumps

2015 ◽  
Author(s):  
Ali Hmidet ◽  
Najet Rebei ◽  
Othman Hasnaoui
Keyword(s):  
Performance Evaluation ◽  
Control Strategies ◽  
Experimental Studies ◽  
And Performance ◽  
Solar Powered ◽  
Water Pumps

scholarly journals Construction and Performance Evaluation of a Solar Powered Maize Sheller for Rural Farmers

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
M.O Lawal
Keyword(s):  
Performance Evaluation ◽  
Production Cost ◽  
Design Calculation ◽  
Total Production ◽  
The Sun ◽  
Rural Farmers ◽  
Mechanical Part ◽  
And Performance ◽  
Solar Powered ◽  
Selection Of

The objective of this work is to construct a simple and affordable maize shelling machine that is powered by solar energy. The method adopted involves the selection of a direct current (DC) operated motor which consumes less power and is locally available. Based on the available motor, the mechanical part is fabricated to work with the motor. Direct coupling method is adopted between the motor and the mechanical part. The improvement in this work is the introduction of a sustainable and affordable powering method. Design calculation has suggested the use of an 80-watt solar panel. A battery of 18Ah capacity is used as storage to cushion the effect of the intermittent nature of the sun. Test carried out on the sheller shows that it has the ability to shell 17.25 kg of kernel in one hour. It has also been shown that the developed device has an efficiency of 89.61%. The total production cost of this sheller (together with the solar power system) is approximately sixty thousand naira (N60,000.00/$167).

Design and Performance Evaluation of Network-assisted Control Strategies for HTTP Adaptive Streaming

2017 ◽  
Vol 13 (3s) ◽  
pp. 1-24 ◽  
Author(s):  
Giuseppe Cofano ◽  
Luca De Cicco ◽  
Thomas Zinner ◽  
Anh Nguyen-Ngoc ◽  
Phuoc Tran-Gia ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Control Strategies ◽  
Adaptive Streaming ◽  
Http Adaptive Streaming ◽  
And Performance

scholarly journals Development and Performance Evaluation of a Solar Powered Lawn Mower

2021 ◽  
Vol 2 (2) ◽  
pp. 348-362
Author(s):  
Babatunde SOYOYE
Keyword(s):  
Performance Evaluation ◽  
Dc Motor ◽  
Solar Panel ◽  
Galvanized Steel ◽  
Continuous Increase ◽  
Lawn Mower ◽  
Speed Controller ◽  
And Performance ◽  
Solar Powered ◽  
Cutting Capacity

The continuous increase in the cost of fuel and the effect of emission of gases from burned fuel into the atmosphere when operating engine powered lawn mower has necessitated the use of the abundant solar energy from the sun as a power source of a lawn mower. A solar powered lawn mower was designed, fabricated and assembled on the basis of the general principle of mowing. The components of the lawn mower are; direct current (DC) motor, rechargeable battery, solar panel, galvanized steel blade of various thicknesses and shapes, and a speed controller. The required torque needed to drive the galvanized steel blade was achieved through the DC motor. The speed of the DC motor was controlled by the speed controller with the resistance in the circuit and allowed the motor to drive the blade at varied speeds. The battery recharged through the solar charging circuit, which comprises of a solar panel and charge controller. Performance evaluation was conducted on the developed mower with various thicknesses (1 mm, 1.5 mm and 2 mm) and shapes of the cutting blade (two, three and four blades). It was found that the cutting efficiency of the mower ranges from 70.50% - 84.10%, also the cutting capacity ranges from 0.05 ha h-1 - 0.27 ha h-1, the uncut area was also found to range from 15.90% - 29.50%.

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