Browsing by Author "Shuaib-Babata, Y.L."

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    CHARACTERIZATION OF BRIQUETTES FUEL PRODUCED FROM ADMIXTURE OF COCONUT COIR AND SAWDUST PARTICLES USING STARCH GEL AS A BINDER
    (Faculty of Engineering andTechnology, University of Ilorin, 2026) Ambali, I.O.; Shuaib-Babata, Y.L.; Busari, Y.O.; Issa, A.M.; Ajao, K.S.; Popoola, O. T.
    Characterization of briquettes produced from admixture of coconut coir and sawdust using cassava starch as a binder was studied in this study. The materials were locally sourced and processed to produce briquette samples of different proportions using appropriate ASTM standards guidelines. The physical parameters (such as moisture content, density, relaxed density and shattered index) were investigated; while the examined combustion properties included: ash content, percentage fixed carbon, percentage volatile matter, and heating value. The results showed the moisture content of the sample to be between 6.87 and 7.77%, with sample A (100cc:0s) and D (60c:40s) having highest and lowest value respectively. The samples’ shattered index ranged between 0.7134 and 0.9962%.Sample A and B exhibited the highest and lowest shattered index value respectively. Sample E (50c:50s)recorded better combustion properties of volatile matter (99.63%), fixed carbon (0.37%), ash content (3.0%), heating value (15.6407kj/g) and high carbon composition (45.57wt.%) when compared with the other samples of varying formulations. However, it is recommended that equal proportion of coconut coir and sawdust mixed is the most suitable formulation for the production of the briquette due to the improved combustion properties, low moisture content, low ash content, high heating value, high volatile matter and moderate fixed carbon.
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    Effects of thermal treatment processes (TTP) on some of the mechanical properties of welded 0.165% carbon steel
    (Journal of Production Engineering, 2017) Shuaib-Babata, Y.L.; Adewuyi, R.A.; Aweda, J.O.
    One of the major causes of structural failure in service is attributed to failure in its parts, especially at the welded joints. Engineers and other users of low carbon steel tend to find solution to this problem by considering the application of Post weld heat treatment (TTP).The Microstructure and mechanical properties of heat-treated and untreated welded low carbon steel samples were determined. Simulation of the specimens was also generated using Autodesk Inventor Simulation CFD 2015 Application Software. The CFD model (simulation) showed clearly the visual style wireframe and shaded mesh (XY, and XZ planes and the temperature profiles for different passes), which is a veritable tool to evaluate residual stress that is likely to happen in real welding process. The results also revealed that better quality mechanical behaviour of welded low carbon steel is elicited by post-weld normalizing and annealing TTP.