Sachin Yadav

This project focuses on the design, analysis, and experimental validation of composite T-joints used in naval ship structures. T-joints are critical structural elements that connect stiffeners to skin panels and are subjected to complex loading conditions such as bending, shear, and tensile forces. The objective was to enhance strength, reduce weight, and improve failure resistance using advanced composite materials. Objectives: To design a composite T-joint suitable for naval structural applications To perform finite element analysis (FEA) to predict stress distribution and failure modes To fabricate composite specimens using suitable manufacturing techniques To experimentally validate the numerical results To compare performance with conventional materials

The research work focused on the structural design, analysis, and experimental validation of composite T-joints used in naval ship applications. The study emphasized the importance of lightweight and high-strength materials in modern marine structures. Finite Element Analysis (FEA) was employed to evaluate stress distribution, deformation, and failure behavior under various loading conditions. In addition, experimental testing was carried out to validate the numerical results and ensure the reliability of the proposed design. The findings demonstrated that composite T-joints offer improved strength-to-weight ratio and better performance compared to conventional materials. The research contributes to the advancement of composite applications in naval engineering. The presentation was well-received by participants and experts, highlighting its practical relevance and technical depth in the field of mechanical and marine engineering.

This project focuses on improving the heat transfer performance of an automobile radiator by using Aluminium Oxide (Al₂O₃) based nanofluid as a coolant instead of conventional fluids like water or ethylene glycol. Efficient heat dissipation is critical for engine performance and longevity, and nanofluids offer enhanced thermal properties due to the presence of nanoparticles. In this study, Al₂O₃ nanoparticles are dispersed in a base fluid at different volume concentrations to prepare a stable nanofluid. The experimental setup includes a radiator test rig, flow control system, temperature sensors (inlet and outlet), and a pump to circulate the fluid. The heat transfer characteristics are evaluated by measuring temperature drop, heat transfer coefficient, and overall thermal efficiency at varying flow rates. The results typically show that nanofluids significantly improve thermal conductivity and convective heat transfer compared to conventional coolants. However, factors such as particle concentration, stability, and pressure drop are also analyzed to ensure practical applicability. This work highlights the potential of nanotechnology in automotive cooling systems, leading to improved engine efficiency, reduced overheating, and better fuel economy.

The Solar Powered Water Distillation System is an eco-friendly and cost-effective solution designed to produce clean and potable water using solar energy. The system utilizes the principle of solar distillation, where impure or saline water is heated by solar radiation to generate vapor, which is then condensed to obtain purified water. The system consists of a solar collector or basin, a transparent glass or acrylic cover, an insulated chamber, and a condensate collection unit. Contaminated water is filled in the basin, which is exposed to sunlight. As the temperature increases, water evaporates leaving behind impurities such as salts, heavy metals, and microorganisms. The vapor rises and comes in contact with the inner surface of the transparent cover, where it cools and condenses into droplets. These droplets are collected through a channel into a storage container as distilled water. The design may also include enhancements such as reflectors to increase solar intensity, phase change materials for heat storage, and improved insulation to maximize efficiency. The system operates without electricity, making it suitable for remote and rural areas. This invention offers a sustainable approach to water purification, reducing dependency on conventional energy sources and providing safe drinking water with minimal operational cost and maintenance.