N. ENOMA

With the rising need to maximize passenger’s comfort, especially with the rising demand for selfdriving vehicles, alternatives to the popular passive suspension system have been on the rise. In order to improve the stability of a vehicle and reduce the vibration transferred to the passengers of the vehicle due to different road profiles, it has become necessary to implement a smarter type of suspension system that can respond to different type of road profiles and provide improved damping experience. This type of suspension system is the active suspension system. In order to analyze and simulate an active suspension system, parameters like the sprung and unsprung mass, spring and tire stiffness, damping constant of the damper were accounted for. Then the mathematical model of the system in the time domain was generated. Mathematical model was transformed from the time domain to frequency domain, using the Laplace transform. Then an appropriate controller for stabilizing the system was obtained. The simulated results show that the active suspension system performs better than the passive suspension in terms of settling time, rise time and overshoot and had lesser vibrations was transmitted to the passengers

This project proposes the design and implementation of an alternative auxiliary solar power generation system specifically for critical accommodation and navigation bridge devices on a tugboat. The system aims to provide a reliable backup power source to these essential systems in the event of main power failure or other emergencies, ensuring the tugboat's continued safe operation. Focusing on these critical loads, the system will comprise photovoltaic panels, a charge controller, a battery bank sized for the specific demands of the targeted devices, and an inverter. The abstract will detail the project's objectives, including the specific accommodation and navigation equipment to be supported, such as lighting, communication
systems, and essential bridge instrumentation. Crucially, it will outline the methodology employed for system sizing, including calculations of the power consumption of these devices, the required battery capacity to provide sufficient backup time, and the optimal solar panel array size to ensure adequate charging. The expected outcomes, such as enhanced safety and operational resilience, will be discussed, along with the potential benefits of this targeted approach, including reduced fuel consumption and emissions compared to a full-vessel backup system.

In order to fuse two metal components, electric arc welding uses electrical heat to cause melting, which, when cooled, forms a solid connection. In order to protect the molten metal from exposure to the atmosphere and stop chemical reactions, slag is injected throughout this operation. A power source that creates an electric arc between the metal material and the electrode to be fused is necessary for this process. Both consumable and non-consumable electrodes, as well as alternating or direct current, are used by welders. An electrode is a conductor that creates the heat required for melting and fusing by sending electric current to the metal to be welded. Whether an electrode is consumable or non- consumable depends on the specific arc welding process being used. The electrical energy needed for the arc welding process may be obtained from a variety of power source methods. Constant voltage and constant current power sources are the most common varieties.

This study reviews the efficiency of hydrogen as a sustainable fuel source in marine propulsion systems to address the urgent need for decarbonization in the shipping industry. Traditional marine fuels contribute significantly to global greenhouse gas and pollutant emissions; therefore, alternative, zero-emission solutions are critical. The review demonstrates that hydrogen propulsion is a technically viable and highly efficient pathway toward zero-emission shipping. The findings provide critical data for naval architects, policy makers, and shipping companies, underscoring the necessity of investing in fuel cell technology and supporting hydrogen bunkering infrastructure to achieve the IMO's (International Maritime Organization) targets for a sustainable maritime sector

An Automated Residential Gate project aims to enhance security, convenience, and energy efficiency through the integration of automation and solar power technology. Traditional manual gates require significant human effort and are often inconvenient, especially for large or heavy gates. To address these issues, this project involves designing an automated sliding gate system controlled by remote access, keypads, and IOT connectivity. The system incorporates a D5V6 Smart Centurion Machine, a 60W solar panel, a 30A charge controller, and a deep-cycle battery to ensure uninterrupted operation, even during power
outages.The design includes a 0.37 kW motor with a gearbox to enhance torque efficiency, along with infrared sensors for obstacle detection and limit switches for precise movement control. Safety features such as emergency manual release and predictive maintenance alerts further improve usability and reliability. Structural materials such as steel and corrosion-resistant components ensure durability under various environmental conditions. Through performance testing, the system demonstrated smooth operation, energy efficiency, and enhanced security compared to conventional gates. The solar-powered system effectively reduces reliance on grid electricity, making it a cost-effective and sustainable solution. Future improvements may include AI-driven security enhancements and higher-efficiency solar panels to further optimize performance.