DEPARTMENT OF INDUSTRIAL AND PRODUCTION ENGINEERING
Permanent URI for this communityhttps://repository.ui.edu.ng/handle/123456789/472
Browse
117 results
Search Results
Item Computer aided design (CAD) of a vertical transportation system in high-rise building: case of ivory tower, University of Ibadan, Ibadan(Department of Industrial and Production Engineering, University of Ibadan, 2020) Odunfa, K. M.; Taiwo, O. I.; Odunfa, V. O.; Abu, R.In compliance with the global building regulations, building with at least three floors and above must have lift. The Ivory Tower building in the University of Ibadan, Ibadan, Nigeria, for decades has been underutilized due to lack of convenient and less stressful vertical movement of the people within the building. The need therefore arise for the lift design system for the building. Analytical work involves in the design of lift system in building is often time consuming, laborious, rigorous and tedious. This work therefore aims at design and specifies lift system for the Ivory tower building using Computer Aided Design (CAD) approach. Standard Equation based on the lift system design was adopted in the study. Data were collected from the building site which includes the floor to floor distances and floor dimensions. The population in the 10-Storey Ivory tower building coupled with the 4 Storey Administrative building attached to it was determined using the Chartered Institute of Building Services Engineers (CIBSE) design guide (Peters R D Green 1995 and CIBSE 1991). Lift performance analysis for the building was then carried out using FORTRAN IV programming language. Appropriate and suitable lift and its specifications was then selected for the building. The maximum capacity, number of passengers, velocity, Round Trip Time, Handling Capacity, Interval, and number of lift cars of the selected lift system based on the quality of service are 450kg, 6 passengers, 2.0 m/s, 80.3seconds, 86 passengers, 17.54 seconds and 4 cars, respectively. The lift system therefore selected based on the required quality of services is four numbers 450kg-6passengers machine room less geared traction type. The lift shaft was successfully designed and the number of lift specified using the developed source code; hence the code can be used to design lift system for any building.Item Comparison of compromise constraint bi-objective LP method and three traditional weighted criteria methods(Department of Industrial and Production Engineering, University of Ibadan, 2020) Adeyeye, A. D.; Arise, O. T.; Charles-Owaba, O. E.Item Evaluation of mechanical strain resulting from working with two locally fabricated engine powered stationary grain thresher(Department of Industrial and Production Engineering, University of Ibadan, 2020) Akanbi, O.G.; Afolabi, B.O.In place of the combine harvesters, stationary grain threshers are the most common among the farmers in the developing countries, many are being produced locally to meet up with the local demands by the farmers which they find to be relatively cheap and affordable. To ascertain the level of their user friendliness, two threshers of heights 92 cm (M1) and 161.5 cm (M2) with capacities 3000kg/hr. and 6500kg/hr. respectively were selected for evaluation to determine the possible biomechanical strain that may result from working with these locally fabricated threshers. Questionnaire and physical measurements were employed for data collection of thirteen randomly selected operators, with ages ranged in-between 20 and 35 years. The results of machine performance tests showed that quantity threshed on average ± SD per minute are 12.59kg ± 2.41 (M1) and 20.38kg ± 3.84 (M2),corresponded to the mean (SD) of weight per lift of 1.75kg (0.44) and 2.06 (0.22), and mean; SD of frequency of lift/minute of 7lift/min;1.59 and 10lift/min;1.81. The body kinematics analysis showed flexion, extension, lateral deviation and abduction with respective highest mean values of 167.750 at kneel (M1), 111.500 at ankle (M1), 24.750 at neck (M2) and 72.000 at shoulder (M2) at the end of lift. Regression analysis of biomechanical parameters, and frequency of lift and weight per lift gave F-value of 425.987 (R2 =0.974), which shows no relationship at α= 0.01. Subjects’ indications of body parts discomforts showed highest percentages of 78.3%; 84.6% and 72.9%; 80.8% for M1; M2 at shoulder and lower back respectively. Conclusively, the overall result showed that the two machines need to be ergonomically modified to prevent the users from the risk of musculoskeletal disorder (MD).Item Garment sizing system: a critical review of the past, present and future(Department of Industrial and Production Engineering, University of Ibadan, 2020) Opaleye, A. A.; Kolawole, A.Item On safety, health, productivity and national development(Department of Industrial and Production Engineering, University of Ibadan, 2020) Kolawole, A.; Opaleye, A. A.Occupational health and safety has become an important subject of discourse globally. The aim is to safeguard the safety, comfort and well-being of the workforce of any nation. This is applicable to all branches of industry, business and commerce, information technology establishments, recreational facilities without leaving out domestic activities. As a result of the effect of this subject on the economy and national development together with the challenges involved, the issue has attracted the attention of many stakeholders including government, management of work organisation, researchers among others. In this chapter, the combined impact of safety, health, productivity and national development is conversed. It is concluded that for a nation to develop, productivity must grow steadily and one of the key ways to attain this, is that the health, safety and well-being of the workers who are the drivers of development must be guaranteed in any workplace.Item The traveling salesman problem: algorithms, sub-tours and applications in combinatorial optimization(Department of Industrial and Production Engineering, University of Ibadan, 2020) Oladokun, V. O.; Odedairo, B. O.; Atitebi, O. S.The importance of the traveling salesman problem (TSP) in combinatorial optimization and its application and adaptability to numerous real-life problems has led to the development of a wide range of algorithms. A major issue in the development of TSP algorithm involves how to handle the large number of subtour eliminating constraints which contribute to the exponential growth of computational time associated with TSP algorithms. In this chapter, basic concepts, development and many numerous research efforts of Professor O.E. Charles-Owaba on TSP were discussed; some of his works on the concept of the TSP set sequencing algorithm were highlighted.Item Application of deep learning in disease prediction(Department of Industrial and Production Engineering, University of Ibadan, 2020) Nwaneri, S. C.; Anyaeche, C. O.Item The role of renewable energy in Nigeria’s energy transformation(Department of Industrial and Production Engineering, University of Ibadan, 2020) Bolarinwa, M. A.The domination of the energy mix of most countries across the globe by fossil fuel has been having serious effects on the climatic conditions, resulting from constant emission of greenhouse gases, GHG. It has also been found to be detrimental to human health, and as such, not less than 5 million cases of premature deaths due to local air pollution are annually recorded. Therefore, to combat GHG emissions and air pollution, there is an urgent need to adopt clean sources of energy generation, such as the renewables. This chapter discusses the meaning, history and benefits of renewable energy, highlights the common forms and sources, dwells on energy trends in Nigeria, reflects on hydropower plants in relation to technology, material selection and efficiency, as well as draws conclusions from areas covered.Item An integer linear programming model of a university soccer timetabling problem(Department of Industrial and Production Engineering, University of Ibadan, 2020) Okunade, O. S.; Ogueji, K. J.Item Some developments In scheduling algorithms(Department of Industrial and Production Engineering, University of Ibadan, 2020) Oluleye, A. E.; Oyetunji, E. O.; Akande, S.