Browsing by Author "Musa, .N. A."

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    Development and Testing of a Heat Dissipation System Using Fins for a Motorcycle Exhaust Pipe
    (Nigerian Journal of Engineering Science Research (NIJESR), 2022-12-30) Okegbile, .O. J.; Oboakporhorho, .J. J.; Bori Ige; Babawuya, .A.; Bako, .S.; Musa, .N. A.
    The paper developed and investigate the use of fins as heat exchanger in dissipation of heat that arise from motorcycle exhaust pipe which can result in variety of degree of burns, affecting both users and passengers when in accidental contact with it. In this research work, copper pipe and aluminum fins were used because the heat transfer rate needs to be improved. The fabrication of the fins array was carried out with the use of 1mm aluminum material and 4mm copper pipe the base plate, the fins array are very potable and may be unfastened used on other exhaust pipes, since the fins are assembled with bolts and nuts. The analysis shows that the rate of heat transfer from the exhaust pipe (without fins) is1078W, while the heat transfer from the fins array was 2692.3W; which shows an increase in exhaust pipe heat transfer by factor of 2.5. Therefore, the risk of contacting serious burn when in accidental contact with the exhaust pipe has been reduced. It is hereby recommended that, the Semi rectangular fins profile can also be used for further research work because they are also effective, and the Copper fin may be considered for further work due to excellent thermal conductivity of the material.
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    Stability Analysis of a Semi-Trailer Articulated Vehicle: A Review
    (International Journal of Automotive Science and Technology (Turkey), 2021-06-30) Bako, .S.; Bori Ige; Nasir, .A.; Musa, .N. A.
    Semi-trailer articulated vehicles are mainly used for transportation of goods and industrial products. The vehicles are made of two or more vehicular units that are coupled by a me-chanical device called, hitch point. The static and dynamic behavior of these vehicles differs from those of other vehicles, while accidents on these vehicles are fatal and disastrous. Therefore, there is need to know more about the static and dynamic characteristic of these vehicle, in order to ensure safety of lives and properties. This paper provides literature review on the aforementioned vehicle in order to have more insight on how to improve its stability. It was observed from the literatures review that, the higher the weight on this vehicle, the farther the distance of centre of gravity (CG) from the hitch point. This affects the safety margin against rollover stability of these vehicles. The fifth wheel lead, and the distance between the tractor, and the trailer CG were also found to play a vital role in influencing the stability of these vehicles. However, it was observed that, it would of great important for a tractor unit with one rear axle, to have the fifth wheel lead, to be as large as possible in order to control the vehicle instability. Therefore, due to the unusual behavior of these vehicles, more research works are needed in order to have more insight on the static and dynamic characteristic of these vehicles as to improve the safety of lives and properties.