Browsing by Author "Issa, W. A."

Now showing 1 - 7 of 7
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    A BRIEF REVIEW OF CHARACTERISTICS AND APPLICATIONS OF SHAPE MEMORY ALLOYS IN ENGINEERING AND RELATED FIELDS
    (International Journal of Mechanical Engineering and Technology (IJMET), 2021-09) Issa, W. A.; Camur, H.; Savas, M.
    Shape Memory Alloys shortened as SMA’s are examples of smart materials. They sense and respond to changes in environmental conditions or stimuli, such as chemical, electrical, mechanical among others. This review, discusses the concept of SMA’s, including their engineering effects and innovations in SMA’s research. Similarly, the uses and applications of SMA’s in engineering and related fields such aerospace, biomedical, chemical, civil, electrical, and mechanical engineering are reviewed briefly including the merits and demerits of using SMA’s
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    Computer Aided Design and Fabrication of Garri Rotary Fryer with Brush Scrapping Device
    (International Journal of Engineering Trends and Technology (IJETT), 2018-08) Oladebeye, D.H.; Adefidipe, E.R.; Issa, W. A.
    A simple gari frying machine with brush scrapping device was done using Computer Aided Design (CAD), and then fabricated. The gari frying machine consists of a rotary shaft with paddles having brush scrappers at the tip. This system is inserted into a drum to fry sieved cassava mash with the aid of charcoal as the source of heat in the chamber is controlled by introducing heat exchangers. The paddle shaft is driven by a synchronous electric motor of 3.75kw with 1460rpm. As the shaft rotates, the paddle having a to and fro conveyor effect, turns the dewatered sieved cassava mash being fried. The total cost of production is N176, 095.
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    Computer Application for Maintenance Planning and Scheduling of Industrial Plant
    (International Institute for Science, Technology and Education, 2012-01) Ajao, K. R.; Issa, W. A.; Muhammed, B. H.
    Plant maintenance involves all activities carried out on a machine to ensure a zero downtime of operation. Maintenance activities vary from one industry to the other but the basic maintenance activities are mainly to ensure continuous operations of equipment, plant and machineries. Over the past few decades, the various industrial work activities and maintenance operations are performed without a concrete plan (schedule) or are performed via manual paper work. Industrial operations are usually complex and recurrent activities. Analysis has shown that lack or insufficient maintenance coordination, has accounted for the poor performances and inefficiencies of many industries. Thus, it is pertinent to deduce a planned maintenance organizer or a computer aided design for the planning and scheduling of industrial work activities. This becomes important as computer has revolutionalized industrial activities with the development of modern high level computer programming languages such as visual basic by Microsoft among others.
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    Design and Fabrication of a Charcoal Fish Smoking KILN
    (International Journal of Recent Technology and Engineering (IJRTE), 2020-05) Issa, W. A.; Fatile O.E.; Abdulmumuni B.; Ologunye, O.B.; Okpara, I.N.
    The fabricated charcoal fish smoking kiln was done to improve on the performance of the existing technology and determine its performance for future applications. The charcoal fish smoking kiln is made from rectangular mild steel of 2mm thickness and has three chambers such as the blower chamber, charcoal chamber, and the smoke chambers respectively. The chambers were insulated with 20mm thick thermosetting polymer welded in between two mild steel plates. The end of the smoke chambers is connected to a blower to assists in the heat convective flow mechanism during operation. The weight loss of the fish sample being calculated can be used to determine the smoking efficiency, including the smoking time by using charcoal and the temperature can as well be determined. The smoking kiln was tested by using two different species of fish: cat and panla smoked to an average moisture content of 62.5% within an average period of 4 hours, the average final weight of the dried fish was 0.24 Kg, weight loss 22.45Wb, residence temperature of 60-800C, heat exchanger temperature is 2430C, and heat different at chimney 242 0C. The fabricated machine is highly efficient. It produced dried smoked fish that lasted for seven weeks without spoilage. The fish produced had a golden brown colour. The fish processing itself took less than one hour and the temperature of the heat supplied was quite higher than the traditional drum oven type.
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    DEVELOPMENT OF COMPUTER INTERFACE PROGRAM FOR THE MAINTENANCE PLANNING AND SCHEDULING OF DANGOTE FLOUR MILLS, ILORIN, NIGERIA
    (FACULTY of ENGINEERING ‐ HUNEDOARA, ROMANIA, 2012) Ajao, K. R.; Issa, W. A.; Muhammed, B. H.
    This work developed an interface for the planning and scheduling of plant maintenance operations at Dangote Flour Mills, Ilorin Nigeria. The focus of this computer based maintenance planning is to ensure continuous operations of equipment, plant and machineries and reduce operation stoppages or downtimes. It provides interactive modules whereby industrial activities can be assigned to employees by the company's management while employees can have an immediate view of job schedule, simplifies the process of requesting for work to be performed and manage the issuance of work permits, control parts and inventory, keep good record of equipment and appropriate safety management through proper documentation of accidents that may occur in plant operations among others. The paper form of planning and scheduling industrial work activities is tedious, past maintenance and scheduling records are always difficult to retrieve and in many instances when the stock level becomes zero all industrial production seizes and its attendant consequences.
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    Effect of copper nanoparticles on centrifugal pump
    (Nano Plus: Science and Technology of Nanomaterials, 2021) Issa, W. A.
    This experimental study presents fluid flow characteristics obtained for a non-ferrous metallic water nanofluid, copper-water mixture, through a one-horsepower centrifugal pump. The results obtained for three different pressures rise of 3.8, 4.2, 4.8 (bar) by pumping copper-water nanofluid through a constructed pump test unit, with the addition of 5g of copper nanoparticles to 20L of water are Head (m); 0.17, 0.33, 0.41; Flow Rate (m3/s); 0.463070155, 0.285632676, 0.076961558; Brake Power (Kw); 0.0723825, 0.1050225, 0.041503 and Efficiency; 0.6899997, 0.6399991,0.5999997, while for 10g of copper in 20L of water are Head (m); 0.15, 0.28, 0.37; Flow Rate (m3/s); 0.4606172, 0.2175568, 0.0949577; Brake Power (Kw); 0.0814823, 0.0914652, 0.0591155 and Efficiency; 0.6099998, 0.5699993, 0.5199997. The pump flow rate was observed to decrease as a higher head is attained while the head gained increases with an increase in pumping pressure. The head attained due to pumping was observed to reduce as the copper nanofluid concentration increases, while the pump vibration increases as the particle concentration increases. There was an observed temperature rise in the components of the nanofluid pump testing machine due to a rising temperature of the copper nanofluid during the pumping operations. Lastly, this experimental research clearly shows the impact of copper nanofluid on the pumping power, flow rate, head gained, pump speed, and pump efficiency.
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    Performance Evaluation of Garri Rotary Fryer with Brush Scrapping Device
    (International Journal of Engineering and Techniques, 2019-02) Oladebeye, D.H.; Issa, W. A.; Adefidipe, E. R.
    A gari rotary fryer with brush scrapping device designed using Computer Aided Design (CAD), and fabricated.The paddle shaft is driven by a synchronous electric motor of 3.75kw with 1460rpm. The turn out as being recorded from performance evaluation given at 3kg of cassava mash fried produced 2.7kg in 6minutes at an average temperature of 770C. After considering the mass before frying, mass of charcoal used for frying, moisture loss, mass of net gari fried, time for frying, moisture loss, mass of gari net gari fried, time for frying and rate of frying, the machine has an efficiency of 90%.