Optimization of Adsorption Parameters for Lead (II) Removal from Wastewater using Box-Behnken Design
Optimization of Al 6063 Button Head Rivet FEM Analysis Subjected to CRYO ECAP and RT ECAP
Effect of (SiC+Gr) Addition on the Corrosion Behavior of Powder Metallurgy Copper MMC
Assessment of Reuse Potential of Low-Grade Iron Ore Fines through Beneficiation Routes
Characterization of Copper MMC Reinforced with SiC and Graphite in Equal Proportion Made by the Powder Metallurgy Route
Evaluation and Comparison of Turning Process Performance during Machining of D2 Steel Material under Two Sustainable Machining Techniques
An Investigation on Recent Trends in Metamaterial Types and its Applications
A Review on Plasma Ion Nitriding (PIN) Process
A Review on Friction and Wear Behaviors of Brake’s Friction Materials
Comparative Parabolic Rate Constant and Coating Properties of Nickel, Cobalt, Iron and Metal Oxide Based Coating: A Review
Electro-Chemical Discharge Machining- A review and Case study
Comparison Of Composite Proton Conducting Polymer Gel Electrolytes Containing Weak Aromatic Acids
Enhancement in Electrical Properties of PEO Based Nano-Composite Gel Electrolytes
Electrical Properties of Nanocomposite Polymer Gels based on PMMA-DMA/DMC-LiCLO2 -SiO2
Effect of Donor Number of Plasticizers on Conductivity of Polymer Electrolytes Containing NH4F
PMMA Based Polymer Gel Electrolyte Containing LiCF3SO3
Perovskite-type lanthanum strontium iron oxide (LSFO) films were synthesized on Si substrate with metalethylenediaminetetraacetic (metal-EDTA) complex. The starting material of the metal composition has been La:Sr:Fe=1:3:3, followed by atmospheric sintering at temperatures ranging from 550 °C to 950 °C. The process produced LaSr3Fe3O9.9 owing to the design of the metal-EDTA complex, and also crystals with other LSFO structures. LSFO particles were also prepared on carbon paper by using spraying and roasting processes for use as the air electrode in a metal-air secondary battery. The addition of surfactant to the (La,Sr,Fe)-EDTA solution made it possible to prepare uniformly distributed LSFO particles sized approximately 100 nm on carbon paper. The catalytic effects of the different LSFO films on the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were investigated. Unique solution-based synthesis with compositional accuracy for metal-air secondary battery has been proposed.
Different materials had been used for sink fabrication in recent years. In this study ceramic filled polyester composite material has been developed by adding micro-fine limestone and clay ceramic particulates with particle size of <134 μm to unsaturated polyester resin with a loading weight of 20% limestone and 30% limestone/clay and fixed amount of catalyst (1% weight). The reaction temperature lies within 95.8 – 150 oC. Resin Transfer Molding (RTM) technique has been used to fabricate a prototype sink using wooden and Plaster of Paris (POP) mold with a view to examine surface finish. The prototype sink produced shows durability with smooth surface finish and can be customized to satisfy end user's preference and choice.
The world has lot of energy resources, but the major problem is concerned with its storage. This paper demonstrates the thermal energy storage using phase change material (PCM) which is one of the effective methods. In this paper, a 'two-way heat exchanger system' is designed in which thermal energy is stored and hot water can be utilized during daytime as well as night. The result of charging and discharging process of paraffin wax is observed. Basic working behind this system is to store the latent heat of paraffin wax. This heat can then be extracted to raise the temperature of water. The performance of PCM is compared with two different flow rates. This experimental result shows the feasibility of phase changing material as energy storage media.
Fly ash (FA) is a particulate matter consisting of finely divided, non-combustible particles obtained from the flue gases arising from combustion of coal, accounts for over 80% of the total ash produced during coal combustion. In 2018 alone, about 780 million tons of FA has been generated globally, of which voluminous quantity remained unutilized, hence dumped into the environment. This continued disposal of FA into the environment makes the heavy metals contained therein to move out in the leachate generated, polluting the soil, surface and ground water sources among others. In this study, 5 sets of leaching test columns were packed with an equal quantity of air dried fly ash samples and each of them leached with leachant of pH 5.87, 6.08, 6.41, 6.46 and 7.01 and eluate from each column collected at cumulative liquid to solid (L/S) ratios in l/kg of 0.1, 0.2, 0.5, 1.0 and 2.0. Analysis of the eluate for Copper (Cu), Selenium (Se), Zinc (Zn), Cadmium (Cd), Lead (Pb), Nickel (Ni), Chromium (Cr) and Arsenic (As), revealed that the concentrations of Se at Selenium L/S of 0.1 for leachant pH of 5.87, 6.41 and 7.01, exceeded the allowable limits for non-hazardous wastes disposal into the landfills.
Functionally graded materials or functionally gradient materials (FGM) are characterized as an anisotropic material whose physical properties varies continuously because the dimensions vary randomly or strategically to realize the specified characteristics. The general properties of the functionally gradient material are different from the properties of any of the individual parent materials which forms it. In this case aluminium and ceramic material FGM is considered, as ceramic materials displays better wear, corrosion and temperature resistance. Material modelling, geometric modelling and finite element modelling are completed for the disc subjected to inertia force because of the rotation of the disk, and thermal load. Then the numerical problem is solved using the finite element software ANSYS 18.1. A functionally graded annular disc is analyzed for different profiles like convex, concave, linearly varying and uniform with different angular velocity, and ceramic material considering exponentially varying material properties.
Input parameters identification and selection along with its range is an important task to proceed with the major experimentation in research work, especially when working with some specific methods in DOE (Design of Experiment). Few parameters have to be considered with fixed values and as variables based on the limitations or ranges of the input parameter values in non-conventional machining process. Selection of the range of values is the immediate task after selecting input parameters. There should be one procedure or evidence for selecting the better range of values in the set along with the help of literature. In this research paper, the selection of range of values of 'Pulse ON Time' is discussed. Out of the four proposed input parameters to be used in the main experimentation, three were assumed as fixed and seventeen experiments were conducted to determine the range for the fourth parameter. For different values of input parameters, MRR and SR were found. Modified TOPSIS has been applied on these observations, and then from the results, better values of Ton were found out to complete set of values which are to be utilized in DOE.