FACULTY OF ENGINEERING

This study presents a comprehensive technical analysis of Christmas tree systems in offshore platforms, focusing on their development and completion.The analysis encompasses the design, installation, operation, and maintenance of
Christmas tree systems, highlighting the complex interactions between technical, operational, and environmental factors and Advanced numerical methods.Furthermore, the advance numerical method that was employed is a comprehensive structural integrity analysis of Christmas tree systems in offshoreplatforms using Finite Element Analysis (FEA). The FEA model was developed to simulate the behavior of the Christmas tree system under various operational loads, including internal pressure, external pressure, and valve actuation forces. The results of the analysis showed that the Christmas tree system can withstand the applied loads without compromising its structural integrity. The FEA model was validated by comparing the results with analytical solutions and experimental data. The study demonstrates the effectiveness of FEA in evaluating the structural integrity of Christmas tree systems and provides valuable insights for optimizing their design and operation.

The purpose of this project titled “illustrations of measurement while drilling, weight on bit and torque on drilling performance” is to increase drilling efficiency in directional wells, peaks and troughs are characteristic of the nature of the oil and gas industry. With current prices hovering just above $60 per barrel (Bloomberg, 2019), it has never been a better time to increase the efficiency of the drilling process. This research focuses on the control of surface parameters to understand vibrations in directional wells; this paper discusses actual cases where the use of data from these downhole sensors has improved drilling performance In conclusion to this research parameters such as WOB and RPM were varied and their effects on depth drilled, response torque, ROP, MSE were studied
for vertical well configuration and directional well configurations.

Companies must carry out various businesses, one of which is by supervising each production process in order to produce quality products. Quality control is required within a company to minimize operational costs in products. Good quality control will assist in the fluency of the production process, so that the production activity will reach its target. Companies will find means to implement a quality control system that is capable and reliable. One of the methods is using Statistical Process Control (SPC). The case studied in this project was the bottled palm wine product in NIFOR palm wine bottling unit. This research is centered on the quality of nifor bottled palm wine due to breakages during pasteurization. The SPC used is the Control chart (p chart). Based on the analysis of control chart, it is indicated that the process is in control. This can be seen in the control charts where there is the absence of outliers. In the month of January, February, March and April, there are zero out of bounds. Thus the Enterprise can take to maintain and monitor current processes by regular quality checks and statistical monitoring to ensure that the process remains in control.

Biogas is a gas mixture consisting mainly of methane and carbon(IV)oxide resulting from the biological process of anaerobic digestion of various organicmaterials. The percentage of methane in biogas will vary depending on the processconditions and the type of organic matter fermented. This study investigatedtheeffects of thermal and alkaline pretreatment methods on cattle rumen content andincrease the biogas yield. In the course of this study, sodiumhydroxide (NaOH) was the alkali of choice and temperature ranges of 70ºc 80ºc and 90ºc in a BoxBehnken design. Modelling was carried out with using Response Surface Methodology (RSM) which was used for the Analysis of Variance (ANOVA) andmultiple regression analysis of the data obtained. The R2 value of 0.9768for NaOH, contour plots, ANOVA analysis all shows how suitable the RSMmodel is for theexperiment. The optimum conditions necessary for maximum feedstock degradation for the alkaline was examined and it was found by using NaOH atatemperature of 80.171ºC, timed 13.086 minutes and a molar concentration of 2.05M and the degree of degradation is 56.83%.

ABSTRACT
This project reports the design, fabrication and experimental test of a solar water heater for domestic use. It consists of a flat plate collector of aluminum sheet of 1.016mm thickess. A water source tank which is also made from aluminum which can be installed at any location and circulation of water is with the aid of gravity through plumbing network. Experiments were performed on the solar water heater operating under force circulation with the aim of evaluating the collector’s performance. This involves hourly reading of temperature at various locations of the unit from 9am to 4pm for a period of three days. Results show that a temperature of 55ºC was obtained when 20 litres of water was heated during one of the tests carried out

A corn dehusking and shelling machine presented in this paper helps to dehusk the corn cob
from its husk and separate corn from the cob. The fabricated design consist of a body casing
drum, shelling unit, dehusking unit, grain and cobdischarge unit, machine frame, hopper
(feeding chute), bearing as some of the major component, it is expected to be powered by
1Hp electric motor connected via a belt drive which transmits torque from the electric motor
to the shelling and dehusking units. The fabricated design is expected to be at least 89%
efficient with an operating capacity of about 63.95kg/hr. The design is expected to be
relatively cheap, simple and portable when compared to imported product of similar capacity.

Pollution is a very predominant problem in Nigeria. As a developing nation, we face
challenges of constant economic recession and this can have effect on so many facets of life
including construction. Road construction is now so expensive. In other to combat pollution
and bad roads, waste can be used with other construction materials to construct better
roads.
In this study, the geotechnical properties of natural soil were determined, the effect of
mixture of orange peels in proportions of 2%, 4%, 6% and 8% were observed and the
appropriate mix ratio was ascertained. The soil samples were obtained from Faculty of
Engineering, University of Benin, Benin City, Edo State, from two locations. The following
tests were carried out; Moisture content Test, Specific Gravity Test, Sieve analysis, Atterberg
Limit tests, Compaction tests, California Bearing Ratio tests and on the treated and
untreated laterite soil. This laboratory tests were carried out to determine the suitability of
these waste materials when mixed with the soil samples. For the control sample, the specific gravity was obtained to be 2.69 and 2.73 which is above
2.50 but not greater than 3.0 for lateritic soils, this shows a high plasticity. The plasticity
index was obtained as 39.49% which indicates that the soil is not medium in plasticity. Also, from the sieve analysis, the soil is classified as an A-2-6 soil according to AASTHO. This value
indicates that it is good for subgrade material. Therefore, these soil reinforcement
techniques with orange peel can only be used for Trunk D roads or as subgrade materials
which require a minimum soaked CBR of 5%. For Trunk A, B and C roads, the mixture would
require a binder like cement before being considered as subbase and base course materials

This project reports the design, fabrication and experimental test of a solar water heater for domestic use. It consists of a flat plate collector of aluminum sheet of 1.016mm thickness. A water source tank which is also made from aluminum which can be installed at any location and circulation of water is with the aid of gravity through plumbing network. Experiments were performed on the solar water heater operating under force circulation with the aim of evaluating the collector’s performance. This involves hourly reading of temperature at various locations of the unit from 9am to 4pm for a period of three days. Results show that a temperature of 55ºC was obtained when 20 litres of water was heated during one of the tests carried out.

Flooding poses a significant challenge to Ugbowo and its environs, causing environmental degradation and socio-economic losses. This study aims to mitigate flooding through a comprehensive check dams uitability analysis using GIS and remote sensing techniques. Key criteria considered include landcover(21%), rainfall (18%), drainage density(16%), elevation(17%), slope(15%), and soil type(13%). Results indicate that 11.46% of the area is highly suitable, predominantly in the south eastern region, 87.32% moderately suitable, mainly in central and western areas, and 1.22% with low suitability in the northern section. The primary factors influencing suit ability are land use /cover, rainfall patterns, andd rainage density. Recommendations include structural elevation, run off management, site-specific check dam design, and additional flood mitigation measure stoen hance flood resilience and water shed management. This study provides a frame work for optimizing check dam placement, thereby reducing flood risks and promoting sustainable water resource management in the region.