DEPARTMENT OF MECHANICAL ENGINEERING

First and foremost, I give all glory, honor, and praise to Almighty God for His unending grace, wisdom, and strength throughout the course of my studies and this project. His guidance has been my anchor in moments of challenge, and His blessings have made every step of this journey possible. Our deepest gratitude goes to Barr. Joseph Happy and Mrs Joseph, Mr and Mrs. Agbonogieva, and Mr. and Mrs. Opia,whose unwavering support, sacrifices, and encouragement have been the cornerstone of our success. Their belief in us has been a driving force, inspiring us to strive for excellence and persevere through every difficulty
I sincerely appreciate our project supervisor, Engr Jaja Wisdom and Dr. Ambrose Orogun, for their exceptional guidance, constructive criticism, and patience during the course of this work. Their mentorship not only shaped this project but also deepened my understanding of practical marine engineering principles. I am also thankful to all lecturers and staff of the Department of Mechanical Engineering, University of Benin, for their commitment to knowledge and for providing the academic foundation upon which this project was built. Special thanks to friends Clinton, Diamond and my course mates, whose collaboration, technical insights, and shared passion for engineering made this research both rewarding and memorable. This project stands as a testament to faith, perseverance, and the collective effort of everyone who contributed to my academic and personal growth.

Access to clean water is essential for human health and environmental sustainability. This project focuses on the design and implementation of a mini water treatment plant for the Department of Mechanical Engineering, University of Benin. The system is designed to treat raw water by removing impurities, ensuring it meets safe consumption and laboratory usage standards.The project involves the integration of filtration, coagulation, sedimentation, and disinfection processes to achieve efficient purification. Key design parameters, including flow rate, treatment capacity, and material selection, were carefully considered to ensure optimal performance and cost-effectiveness. The implementation phase includes system fabrication, installation, and testing to evaluate efficiency and compliance with water quality standards.The results demonstrate that the proposed water treatment system effectively reduces contaminants, providing a reliable and sustainable solution for the department. This project not only enhances water quality but also serves as a practical model for smallscale water treatment solutions in institutional settingS

A gas Detector is an electronic device that is installed in a building to detect the presence of gas to prevent fire outbreak. An automatic alarm system is designed to detect the unwanted presence of gas by monitoring environmental changes associated with combustion. In general, an alarm system is classified as either automatically actuated, manually actuated, or both. Automatic alarm systems are intended to notify the building occupants to evacuate in the event of a gas leakage or other emergency, report the event to an off-premises location in order to summon emergency services, and to prepare the structure and associated systems to control the spread of fire and gas. The gas detector system composes of a light dependent resistor (LDR) which works as a gas sensor. Light dependent resistor is a type of resistor with high resistance in the presence of light and which reduces in its resistance when gas passes through the surface. The aim of this project is to design and construct a fire alarm for a building that will detect the presence of gas leakages in a building.

This project presents the design and fabrication of a cost-effective submersible Remotely Operated Vehicle (ROV) intended for underwater exploration, specifically for lakebed surveys and crack observations. The study aims to develop an affordable, durable, and highly maneuverable ROV using a syringe-actuated buoyancy system, PVC hull construction, and a combination of propellers and pumps for navigation. Unlike conventional ROVs that rely solely on thrusters, this design integrates a novel buoyancy control mechanism to enhance precision and stability in shallow water operations.
The development process involved conceptualizing the structural framework, selecting appropriate materials, and integrating propulsion, control, and buoyancy systems. The ROV was fabricated using lightweight and corrosion-resistant materials such as PVC pipes and acrylic plates, ensuring durability and cost efficiency. A single brushless motor provided forward propulsion, while four strategically placed syringe-actuated pumps enabled controlled vertical and lateral movement. The prototype underwent rigorous testing to evaluate maneuverability, depth control, and structural integrity. Results demonstrated that the ROV successfully achieved stable and precise movements, making it an effective tool for underwater inspections. The syringe-actuated buoyancy system provided reliable depth control, although minor delays in response time were noted. While the design proved efficient for shallow-water exploration, enhancements in power efficiency and material optimization are recommended for future iterations. Overall, this project contributes to the advancement of affordable underwater robotics, offering a practical solution for research, environmental monitoring, and industrial applications

The demand for indoor cooling is on the increase especially in a tropical weather country like Nigeria. Air conditioning has been the most common cooling mechanism for providing indoor cooling for office buildings. However, the conventional air conditioners consume a lot of electricity and also make use of chlorofluorocarbon (CFC) and hydrofluorocarbon (HCFC) refrigerants which contribute to global warming. The solar absorption air conditioning system utilizes heat from solar radiation to drive an absorption system which produces the refrigerating effect. A lot of research work has been carried out to analyse and improve the system. The aim of this project work is to design a solar absorption air conditioner by determining the size and type of the required solar collector and the maximum coefficient of performance (COP) that can be achieved by varying the generator temperature. The solar collector area with an efficiency of 0.76 was calculated to be 2.375m2, for an optimum generator temperature of 950C. The COP at this generator temperature was calculated to be 0.736