ABSTRACT

 The repair and recommissioning ofthe Bernoulli’s and Venturi meter apparatuses in-situ at the Fluid dynamics laboratory of the Mechanical Engineering department in Michael Okpara University ofAgriculture, Umudike (MOUAU) was done. The repair work was done under the supervision and direction of an experienced Technician at the laboratory. I'he repair work was initiated by troubleshooting the equipment which revealed the faulty parts ofthe apparatuses. This was followed by the procurement ofthe damaged parts and their reconstruction, polishing and Assemblage. Electrical wiring was performed through the assistance ofan electrician from the works Department of MOUAU. The parts included the Electric motor, electric pump switches (1, 2,3 and 4), filter, glass tube, hose, clips, plug and bolts. At the end ofthe repair, the process fluid mechanics apparatuses became functional and were used to perform practical experimentation to determine the rate offluid flow from one source or body to another. Above all, the experimental steps (procedures) taken to achieve the refurbishment and practical demonstrations of the fluid flow experiments such as variations of the actual (Qa) with the theoretical (Qt) discharges, and flow rate (Q) with the coefficient of discharge (Cd) were respectively provided and performed. From the results obtained, increase in flow rate caused the differential head to rise in the two limbs ofthe manometer that provided the venture effect. Also, an average Cd value of0,97 was obtained which was close to the actual Cd value of 0.98 with a very minimal percentage error of 0.1%. Overall, the research work successfully contributed to knowledge by demonstrating that it is practically possible to bring damaged apparatuses at the fluid mechanics laboratories to be functional for practical demonstrations. Consequently, technical understanding and know-how of how to repair and operate these apparatuses were gotten from the refurbishment.