MODELING AND EVALUATION OF A PASSIVE FLAT-PLATE SOLAR COLLECTOR ABSTRACT This work investigated the variation of top loss heat transfer coefficient with the emittance of the absorber plate, the collector tilt angle and air gap spacing between the absorber plate and the cover plate. The effects of the emittance of the absorber plate, the collector …
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HUMAN IMMUNODEFICIENCY VIRUS (HIV)-BLOOD INTERACTIONS: SURFACE THERMODYNAMICS APPROACH ABSTRACT Sequel to the earlier works by Omenyi et al which established the role of surface thermodynamics in various biological processes from the electrostatic repulsion and van der Waals attraction mechanisms, HIV-blood interactions were modeled. This involved the use of the Hamaker coefficient approach as a thermodynamic …
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EVALUATION OF THE MECHANICAL PROPERTIES OF POLYPROPYLENE/CALCIUM CARBONATE NANOCOMPOSITE AT VARIOUS CREEP CONDITIONS ABSTRACT The mechanical properties of Polypropylene and Polypropylene/Calcium Carbonate nanocomposites were evaluated. Data on the influence of Calcium Carbonate on the tensile strength, young’s modulus, elongation and creep modulus were obtained for the nanocomposite by conducting a tensile test for the coated …
DEVELOPMENT OF A TRAY DRYER ABSTRACT This project work is aimed at having a complete analysis and design of a grain dryer that will utilize Kerosene as its fuel with consideration of pressure build up for saturated range for our local farmers. The analysis and design has its bases on the three mode of heat …
CRITICALITY MULTI-MODELLING AND SIMULATION OF SPARE PARTS INVENTORY CONTROL ABSTRACT As the bar for service excellence keeps rising, especially in the request of shorter lead times, higher service levels, lower costs and better customer service support, the conventional models of spare parts inventory control are increasingly becoming inadequate. Therefore, to tackle this challenge, in this …
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CEMENT MANUFACTURING/PRODUCTION IN NIGERIA. A CASE STUDY OF EDO CEMENT FACTORY, UKPILLA, EDO STATE. ABSTRACT The project studied the manufacture of cement production in Nigeria using Ukpilla as a case study. It enables us to compare the differences between Ukpilla cement factory production and other cement company in the nation. Furthermore to look into the …
ANALYSIS OF AN AUTOMATIC CONTROL SYSTEM FOR ONLINE BLENDING OF PETROL WITH CORROSION INHIBITOR IN THE DIRECT CONTINUOUS ELECTRONIC FUEL INJECTION AUTOMOBILE ENGINE ABSTRACT This work analysed the performance of an automatic control system for the online blending of petrol with corrosion inhibitor in the direct, continuous electronic fuel injection automobile engine. The automatic control …
COMPUTATIONAL FLUID DYNAMICS (CFD) MODELING OF TURBULENCE INDUCED DRAG IN VEHICLE AERODYNAMICS ABSTRACT This research work focused on the use of an hybrid RANS-LES turbulence model in simulating and checking the drag performance characteristics of an aerodynamic vehicle. The Spalart-Allmaras shear stress transport (SST)- Scale Adaptive Simulation (SAS) Turbulence model was selected for use, and …
DETERMINATION OF THE STATE OF STRESS BETWEEN ADHESIVELY BONDED SINGLE LAP-JOINTS. ABSTRACT In this work, the state of stress between adhesively bonded single lap-joints was determined. The state of stress between adhesively bonded single lap-joints was determined by using a linear elastic analysis and experimental testing. In the analysis part of this work, the …
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ENERGY BENCHMARKING AND CARBON FOOTPRINT REDUCTION OPPORTUNITIES IN PORTLAND CEMENT MANUFACTURING PROCESSES IN NIGERIA. ABSTRACT Energy benchmarking and carbon footprint reduction opportunities in Portland cement manufacturing processes in Nigeria are presented. Life Cycle Assessment (LCA) is used to estimate the environmental impact of three cement manufacturing processes in Nigeria. The energy consumption of the cement …
IMPROVEMENT OF THE PERFORMANCE OF THERMAL POWER SYSTEMS THROUGH ENERGY AND EXERGY ANALYSIS ABSTRACT This research work is aimed at using the energy and exergy analysis with thermodynamic data to suggest improvements in the performance of steam and gas turbine power plants. In this regard, specific data from Egbin steam power plant and Geregu I …
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INTEGRATION OF ATOMIZER INTO ECONOMIZER SYSTEM IN PETROL ENGINES ABSTRACT The thesis is aimed at designing a fuel atomizer device to be incorporated in a fuel economizer system for use in petrol engines for more efficient fuel consumption. The principle adopted is based on the spraying paint machine. A compressor is used to compress air …
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NATURAL VARIABLE MODELING AND PERFORMANCE OF INTERIOR PERMANENT MAGNET MOTOR WITH CONCENTRATED AND DISTRIBUTED WINDINGS ABSTRACT Interior Permanent Magnet (IPM) motor is widely used for many industrial applications and has relatively high torque ripple generated by reluctance torque. Since the configuration of the stator has great influence on reluctance torque, different stator configuration is necessary …