KUKU OLALEKAN RAFIU

Mechanical Engineering

At the Mechanical Engineering department office

Appointment on Visitation important

Topic: INVESTIGATION OF COCONUT FIBRE BENEFICIATION FOR BIFURCATION AND CHAOS CONTROL IN DYNAMICAL SYSTEMS.

Description: Bifurcation is the study of changes in the topological structure of a system. A bifurcation occurs when a small smooth change made to the parameter values of a system causes a sudden qualitative or topological change in its behavior. Bifurcation occurs in both continues and discrete systems such as structures and vibrating machinery. The level of vibration in a structure can be attenuated by reducing either the excitation, or the response of the structure to that excitation or both. It is sometimes possible, at the design stage, to reduce the exciting force or motion by changing the equipment responsible, by relocating it within the structure or by isolating it from the structure so that the generated vibration is not transmitted to the supports. The structural response can be altered by changing the mass or stiffness of the structure, by moving the source of excitation to another location, or by increasing the damping in the structure. Naturally, careful analysis is necessary to predict all the effects of any such changes, whether at the design stage or as a modification to an existing structure. It is necessary to analyse the vibration of structures in order to predict the natural frequencies and the response to the expected excitation. The natural frequencies of the structure must be found because if the structure is excited at one of these frequencies resonance occurs, with resulting high vibration amplitudes, dynamic stresses and noise levels. Accordingly resonance should be avoided and the structure designed so that it is not encountered during normal conditions; this often means that the structure need only be analysed over the expected frequency range of excitation.The problems associated with structure and machinery vibration cannot be over emphasized. The catastrophic behaviors of machinery in manufacturing industry has led to the destruction of lives and properties over the years. The research tends to evaluate the characteristics of machine and structure behavior to vibrational sources and develop a new vibration damping attenuating material using the coconut fiber for purpose of building an effective damping device for dynamical systems.

#	Certificate	School	Year
1.	Ph.D (Mechanical Engineering)	Mechanical Engineering Department, Lagos State University Ojo, Nigeria.	2020

FLUID FLOW ANALYSIS IN A BIODIESEL PLANT USING ANSYS

The fluid flow pattern that occurs in the biodiesel production process is related to viscosity, flow velocity, and pressure. Fluid flow is a paramount cause of failure in pipes in several industries. The heat transfer caused across pipes needs to be analyzed to avoid failure during operation. Flow patterns were analyzed accurately using a Computational Fluid Dynamics model approach CFD . CFD has three important stages, namely pre-processing, finding solutions, and post-processing.Biodiesel is a transesterification process that produces fatty-acid-methyl-ester from the mixing process of methanol and triglycerides. The reaction begins when alcohol, such as methanol, is catalyzed, usually by sodium hydroxide NaOH . This mixture is then added to oil that is derived from oil seeds or animal fats. The process is relatively simple and does not produce any waste products. It is important to note that this is a required process in the use of biodiesel, and raw oils should not be used as substitutes

KUKU RAFIU is a Senior Lecturer at the Department of Mechanical Engineering

KUKU has a Ph.D in Mechanical Engineering from Mechanical Engineering Department, Lagos State University Ojo, Nigeria.