Mechanical Engineering

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Mechanical Engineering

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End date: 2019Subject: search.filters.subject.Model

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    IMPROVEMENT OF HEAT DISSIPATION RATE OF AN AUTOMOBILE BRAKE DRUM USING FINS INCORPORATION
    (Bartin University, Turkey, 2018-12-31) Bako, .S.; Bori Ige; Musa, .N.; Nasir, .A.
    The concept of incorporation of fins in automobile brake drum came up as a measure to subdue or address the thermal problems associated with it, which ultimately leads to brake failure. In order not to compromise the original weight of brake drum,1/10th of the overall wall thickness of the brake drum was converted into fins on the outer surface of the brake drum for effective heat dissipation. Modeling and simulation analysis were carried out using Solidworks (2013) software, on both the existing and modified brake drum, followed by validation using theoretical finite element analysis. The minimum temperatures observed from the simulation analysis were 4935K and 4927K for the existing and the modified brake drum model respectively. While maximum von Mises stress were 22, 378.9 N/M2 and 21, 971.2 N/M2 and the maximum displacements were 5142 x 10(-5)and 5102 x 10(-5) for the existing and the modified brake drum model respectively. This implied that the modified brake drum have improved strength and better heat dissipation rate than the existing model.
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    Modeling the Energy Content of Municipal Solid Waste (A Case Study of Minna Metropolis)
    (African Journal of Renewable and Alternative Energy (AJRAE), 2019-07-11) Ibrahim, .M.; Babawuya, .I.; Enagi, .I.; Mohammed, .A.; Suleiman, .I.; Bori Ige; Garba, .M. U.
    Waste management has assumed importance due to environmental hazards and rapid depletion of the resources of almost all the minerals. Considering the bulk quantity which form the waste in municipal areas, its utilization is posing a challenge to the environment and our natural resources. A physical characterization was performed in 120kg of MSW sampled for one week. Also an ultimate analysis was carried out on 2kg sample of waste mixed thoroughly. The results of physical characterization show there are 30.58% of paper, 29.53% of plastic, 17.17% of food waste, 32.83% of polythene, 16.42% of metals and 18.58% of glass wastes respectively. Also the ultimate analysis shows that there are 36.53% of carbon. 10.09% of Nitrogen, 3.39% of Hydrogen, and 1.10% of Sulphur, 37.37% of ash content and 11.52% of oxygen content respectively. About 23,450kg of waste was open dumped by NISEPA trucks during the study period. A HHV of 5840659.35KJ/120kg was obtained, and it was also found that approximately 488MW of electricity could be generated from waste materials dumped at the landfill annually.