This paper presents a robust control strategy for an electric vehicle’s three-phase off-board bidirectional AC-DC battery charger. The conventional constant current (CC) and constant voltage (CV) charging mode are considered to provide a fast-charging performance for the batteries. The bidirectional charger also allows using of the vehicle as an energy storage system for the grid…
The power system has been expanded to supply and fulfil the consumers’ requirements for reliability, affordability, and power quality. Power loss reduction and voltage stability enhancement are important points and have been considered interesting subjects for researchers and utilities. Furthermore, reactive power plays an important role in power system stability, security, and voltage improvement, and…
Arsenic (As)-contaminated drinking water is a serious health problem in many parts of the world. Although magnetite particles have been shown to be effective at removal of arsenic from water, there has been no research to assess the feasibility of using mill scale-derived magnetite for water treatment. This project was conducted to evaluate magnetite particles…
The magnetite particles were chemically synthesized from the waste of hot rolling steel industry. The characterization of the synthesized magnetite was done by using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The synthesized magnetite particles were used for the adsorptive removal of arsenate from…
The magnetite-enriched particles (MEP) were separated from the mill scale on low magnetic intensity ranging from 300 to 500 gauss. The characterization of the MEP was done with scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The adsorption efficiency of MEP was investigated with batch tests and column operation. The…
Magnetite particles were synthesized by co-precipitation method from the mill-scale and characterized with FTIR, SEM, EDS and XRD. The proficiency of magnetite particles for arsenate removal is determined with batch adsorption experiments and various types of continuous reactors including column reactor fed from bottom to top, column reactor fed from top to bottom and plug…
Hundreds of millions of people in the world regularly intake groundwater that has a high-risk arsenic level. In several parts of Asia, the arsenic concentration reaches up to μ, which is above the drinking water standards of the World Health Organization (μ). The present study discusses the arsenic removal from groundwater using a mixed-valent iron…
This study focuses on the optimization and application of mill scale–derived magnetite particles for the adsorptive removal of arsenic (As) from groundwater. The reverse coprecipitation method is applied to synthesize the magnetite from the mill scale, a byproduct of the iron and steel industry. The independent variables (initial As concentration, pH, contact time, and adsorbent…
This study explored the mechanistic approaches to understand the adsorptive removal of arsenic species from aqueous medium in static and continuous adsorption processes. Fe3O4, an adsorbent is this study, is synthesized by reverse coprecipitation method using iron oxide waste of steel industry as a starting material. The surface properties of Fe3O4 were confirmed by several…
This study investigates the effect of cutting parameters on the surface roughness of turned S45C steel. Spindle speed, depth of cut, and feed rate parameters were optimized to achieve the lowest surface roughness, using 16 workpieces in the experiment. The results show that the lowest surface roughness was achieved with a depth of cut of…
