Adhi College of Engineering and Technology (ACET) is an engineering college located at Oragadam, Chennai, Tamil Nadu, India. The college was started at 2008 in the memory of politician Munu Adhi. and was approved by All India Council of Technical Education (AICTE), New Delhi..
MgFe1.9X0.1O4 (X = Bi, Cu, Nd, Ni) spinel ferrites have been prepared by a combustion process and their structural, optical, and magnetic characteristics have been studied in detail. X-ray diffraction (XRD) and Rietveld refinement established the single-phase cubic spinel structure (Fd-3 m) with the lattice parameters within the range of 8.3843–8.4051 Å, and the FTIR analysis confirmed the occurrence of typical Fe–O and M–O vibrational modes which determined the formation of spinel ferrites. The existence of a tunable band gap between 1.74 and 1.85 eV was observed through optical analysis, and the optical conductivity at the visible and near-infrared spectrum was increased by defect states introduced by the dopant and charge carrier generation. The visible emission in photoluminescence (PL) spectra were found to have an intensity and wavelength change based on the dopant, and enabled by CIE chromaticity analysis, showed tunable emission properties. Magnetic measurements have shown that the incorporation of dopants has a significant effect on the magnetic behavior, where the saturation magnetization is up to 0.338 emu g−1 and the coercivity is between 127 and 155 Oe. The observed changes can be explained by the cation redistribution and altered super exchange interactions. The findings in general indicate that using controlled incorporation of dopants allows optical and magnetic characteristics to be tuned in tandem, and thus the capacity of MgFe1.9X0.1O4 ferrites to possess multiple functionalities. The materials have the potential to be used in optoelectronic, sensing, and spintronic systems.
The multifuel research engine is investigated with diesel, petrol and biofuel to yield the engine waste heat temperature and flow rate of the fuel. The engine’s waste heat is used to generate power, cooling and water heating. The single-component working fluid is considered for the investigation of the integrated system. Three different working fluids M-Xylene, O-Xylene and Ethyl Benzene have been considered. Integrated power, refrigeration and district water heating systems have been considered in the present investigation. The energy and exergy assessments are performed through Engineering Equation Solver (EES). The optimum value of exergy efficiency is resulted for O-xylene, M-xylene and ethylbenzene as 48.34
With the cyber-physical systems championing modern smart grids, securing real-time energy data and transactions is of the essence. Traditional methods such as Signature-Based Intrusion Detection Systems (SB-IDS) are static, thereby missing zero-day threats and incapable of dynamic adaptation, achieving only 85–88
In this work, pure and various concentrations of cadmium substituted cobalt oxide (Cd-Co3O4) nanoparticles were synthesized by using a simple co-precipitation method. The influence of Cd concentrations had control over the Co3O4 nanoparticles. The XRD analysis showed the prepared nanoparticles were cubic structure and calculated crystallite size decreased with increasing Cd concentrations. FTIR spectra affirmed the presence of characteristic bands detected at below 1000 cm−1. The morphological studies exhibited the Cd substituted Co3O4 nanoparticles showed a spherical-like structures. EDS mapping confirmed the existence of the elements like cobalt, cadmium, and oxygen. The surface area of Cd substituted Co3O4 nanoparticles was studied by BET analysis and found to be 173 m2/g. The CV results revealed that the Cd substituted Co3O4 electrodes confirmed the pseudocapacitive nature and specific capacitance value of the 2
Grid connected renewable energy systems especially Photovoltaic-battery based hybrid Microgrid systems are more popular at many locations worldwide. In such system, battery energy management systems are basically considered as solution for many issues including power quality, cost effectiveness, energy flow, stability, compensation, energy saving, flexible operations, etc. This research presents a specialized control strategy on grid tied PV-battery aimed at maximizing daily market revenue. Moreover, the control mechanism is integrated into a sizing algorithm that enhanced the financial parameters. The proposed method demonstrated that the effectiveness in terms of reducing cost of the system and increase its energy saving. The proposed noel energy management system is very simple and relies on data received from PV, battery and grid. MATLAB software platform is used to evaluate the performance of the propose methodology under various aspects.
