http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/111 2026-06-18T17:32:54Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31330 Title: SELECTION AND PORE DISTRIBUTION ANALYSIS OF BIOCOMPOSITE IMPLANTS FOR LOAD-BEARING BONE REPLACEMENT Authors: Ibrahim, H. K.; Abolarin, M. S.; Abdulrahman, A. S.; Adedipe, O.; Okoro, U. G. Abstract: Fabrication of biocomposites to promote bone growth through pore distribution and gradient formation for loadbearing bone replacement have gained attention due to their excellent mechanical properties and biocompatibility. This research study aims to investigate the selection and pore distribution analysis of homogenous, porous, and gradient biocomposite implants for load-bearing bone replacement. The study utilises powder metallurgy, scanning electron microscopy (SEM) and Image J software to produce and characterise the pore size distribution of the biocomposites, respectively. The software can segment the image to isolate the pores from the rest of the implant, measure the size of individual pores, and generate pore size distribution plots. The radar chart was adopted to compare and evaluate the mechanical strength of various biocomposite implants to identify the most suitable implant for load-bearing bone replacement. The findings of this study revealed the gradient and porous biocomposites exhibited desired mechanical properties with porosity of 20.67 and 27.72 % pore size up to 134 and 256 μm, compressive strength of 162 and 95 MPa and compressive modulus of 30.42 and 28.3 GPa respectively. The SEM analysis, coupled with pore size distribution and porosity percentage measurements, offers valuable information for optimising the design and fabrication of biomaterials with enhanced properties. Radar chart analysis further contributes to a comprehensive evaluation of the implants' mechanical and physical characteristics. 2023-06-05T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31327 Title: A case study of Performance Analysis of Gas Turbine Power Plant in Pacific Energy Company Limited, Olorunsogo Papalanto, Nigeria Authors: Oyebamiji, Muideen Oladele; Nasir, Abdulkarim.; Godfry, M Abstract: Abstract . There is need to improve on the thermal power plants that is gaining momentum within the electricity generation industry to support hydro power plant. The failure of hydropower plant meeting up energy generation in Nigeria is becoming major task. This paper present issues of efficiency to boost availability of gas turbine power plant in Pacific Energy Company Limited, Olorunsogo Papalanto, Nigeria. The paper carried out thermal efficiency of two turbines of out eight turbines with 42 MW each at power rating of 0.8. The thermal efficiency of the power plant and network output and effect of ambient temperature were determined. The parameters such as ambient temperature, T1 (oC), ambient pressure, P1 (bar), compressor pressure, P2 (bar) and compressor discharge temperature, T2 (oC) and turbine exit temperature, T4 (oC) for a period of a year 2020 per hour and average of data were used in the analysis. Thermal efficiencies of turbines (𝜂) include at ambient temperature of 33 oC, (𝜂) for turbine 1 was 7.4% and turbine 2 as 9.3%. The thermal efficiency was high in rainy season due to low ambient temperature. Gas turbine power plant 1 has 45.3 kJ/kg-hour of network output and turbine 2 has network output of 59.7 kJ/kg-hour. In conclusion, thermal efficiency increases with increase network output and decrease with ambient temperature of gas turbine. 2021-08-01T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31205 Title: Determination of Failure Mode and Effect Analysis on Water treatment Plant in Greater Lokoja Water Work Authors: Omede, Abdullahi Victor; Sadiq, Ibrahim Ogu; Kufre, Esonowo Jack Abstract: Water is essential to Nigerian agriculture, household necessities, and industrial purposes. Several issues, including population expansion, maintenance, inadequate water infrastructure, pollution, and climate variability, make it increasingly difficult to obtain safe water for consumption. The problem of water supply in Lokoja and its environment has been a challenge. This problem is caused by failure of the plant components that lead to the downtime of the plant hence, low production. It can be addressed by using Failure Mode and Effect Analysis (FMEA). This research is aimed at determining the failure mode and effect analysis on water treatment plants in greater Lokoja water works. Data were collected using Fuzzy Failure Modes and Effect Analysis (FMEA) technique and analyzed using phyton software. The result shows that FMEA is technique is effective in addressing the water challenges in Lokoja cities. The G2 (pipe) has the highest percentage of 8.9%; B1 (valve), B2(valve) and E1(membranes) have the lowest percentage of 5.0%. C1(filtration system) has the highest percentage of 9.3% and A2, B1(valve), D2(chemical dosing system), E2(membranes) and G2(pipe) have the lowest percentage of 5.3%. A1(pump) and C1(filtration system) have high percentage contribution of 8.0%. B2(valve), E2(membranes) and F1(water storage system) have the lowest percentage contribution of 5.3%. Preventive and corrective action plans were equally developed to address the frequent breakdown of water supply components and machines. 2025-05-15T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31175 Title: Development of Brake Pad for Automobile Using Organic Wastes as Reinforcement Material Authors: ABUTU, Joseph; SADIQ, Ibrahim Ogu; DAN-ASABE, Noseh Ali; ALAB, Taiwo Adetunji Abstract: In this work, locally sourced organic wastes were used to produce brake pad using Taguchi experimental design. Organic wastes selected for production include seashell and snot apple fiber while graphite, ceramic wastes and araldite were used as friction modifier, abrasive and binder respectively. Nine samples were produced using Taguchi design technique by varying percentage composition and adopting constant process parameters. Sample characterization was carried out by investigating the tribological properties (wear rate and friction coefficient). The experimental findings revealed that optimal wear rate of the developed brake pad can be obtained using seashell (105.5g), snot apple fiber (4.5g), araldite (50g), ceramic (24g) and graphite (22g) while the optimal friction coefficient can be obtained using seashell (96g), snot apple fiber (4g), araldite (40g), ceramic (20g) and graphite (22g). Based on the results obtained, it can concluded that the selected organic wastes can effectively serve as reinforcement materials in the production of brake pads. 2023-01-01T00:00:00Z