Hussein Kadhim

Wind Turbine Bearing Diagnostics Based on Vibration Monitoring

IOP Conf. Series: Journal of Physics: Conf. Series 1003 (2018) 012086, 2018

Reliability maintenance can be considered as an accurate condition monitoring system which increa... more Reliability maintenance can be considered as an accurate condition monitoring
system which increasing beneficial and decreasing the cost production of wind energy.
Supporting low friction of wind turbine rotating shaft is the main task of rolling element
bearing and it is the main part that suffers from failure. The rolling failures elements have an
economic impact and may lead to malfunctions and catastrophic failures. This paper
concentrates on the vibration monitoring as a Non-Destructive Technique for assessing and
demonstrates the feasibility of vibration monitoring for small wind turbine bearing defects
based on LabVIEW software. Many bearings defects were created, such as inner race defect,
outer race defect, and ball spin defect. The spectra data were recorded and compared with the
theoretical results. The accelerometer with 4331 NI USB DAQ was utilized to acquiring,
analyzed, and recorded. The experimental results were showed the vibration technique is
suitable for diagnostic the defects that will be occurred in the small wind turbine bearings and
developing a fault in the bearing which leads to increasing the vibration amplitude or peaks in
the spectrum.

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Modeling and Simulation of Supervisory Control and Data Acquisition (SCADA) system for Water-quality models

International Journal of Scientific & Engineering Research, Volume 7, Issue 1, January-2016, 2016

This paper focuses particularly to design a Ladder logic diagram a for monitoring qualities withi... more This paper focuses particularly to design a Ladder logic diagram a for monitoring qualities within a drinking water system. This system includes sensors & Electrical Interfaces to PLC (Programmable Logic Controller) for transmitting/receiving control and status data. The chosen water quality parameters , one is the physical quality parameter of a water is Turbidity which provides an inexpensive estimate of total suspended solids (NTU) concentration and one is chemical pH value which stands for "potential of Hydrogen". Exposure to extreme pH values results in irritation to the eyes, skin and mucous membrane and free chlorine CL concentration should be monitored to ensure that it is sufficient for its purpose .A program and a laboratory prototype were built to simulate the real water system. The research was compared with water and Environmental research center of MOST.

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Modeling and Simulation of Supervisory Control and Data Acquisition SCADA system for Water quality models

This paper focuses particularly to design a Ladder logic diagram a for monitoring qualities withi... more This paper focuses particularly to design a Ladder logic diagram a for monitoring qualities within a drinking water system. This system includes sensors & Electrical Interfaces to PLC (Programmable Logic Controller) for transmitting/receiving control and status data. The chosen water quality parameters , one is the physical quality parameter of a water is Turbidity which provides an inexpensive estimate of total suspended solids (NTU) concentration and one is chemical pH value which stands for "potential of Hydrogen". Exposure to extreme pH values results in irritation to the eyes, skin and mucous membrane and free chlorine CL concentration should be monitored to ensure that it is sufficient for its purpose .A program and a laboratory prototype were built to simulate the real water system. The research was compared with water and Environmental research center of MOST.

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Optimization of Automotive Bosch-140 Alternator to use as a Generator for Small Wind Turbine

IOP Conference Series: Materials Science and Engineering, 2021

The generator is one of the costly elements of a small wind turbine. This paper developed a suita... more The generator is one of the costly elements of a small wind turbine. This paper developed a suitable low-cost small wind turbine generator, which can be modified to be easily manufactured. The experiment was conducted in two parts, the first part involves monitoring the current, voltage, power, and temperature for the Bosch 140 alternator before rewinding (initial case), and the second part includes monitoring of parameters (current, voltage, power) with modifying the alternator (Bosch 140) by rewinding depending on the results of the JAMG program simulation (last case). The Bosch 140 alternator was modified consistently by reducing the wire diameter to half to double the windings to evaluate the maximum torque. A genetic algorithm was used to optimize the stator's design optimization to achieve a maximum torque of the magnet. The final result shows a good indication of the modified alternator's efficiency, where it is increased by about 30% from the initial case, and the generation of voltage started at a low rotation speed. It was observed that the new optimization of claw-pole alternator provides fairly the double torque with at least 16% reduction in rotation speed.

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