Samuel Kehinde Oyeniyi

University of Ibadan · Department of Agricultural and Environmental Engineering

This paper presents the computational fluid dynamics simulation of air flow and temperature distribution in a CECH dryer. The CAD model of the dryer was done using Solidworks 2014 software The discretization process was done in ANSYS ICEM in order to cope-up with the thermal and velocity layers formation. ANSYS FLUENT 14.5, a Computational Fluid Dy...

Cassava peel and cow dung have constituted to global warming worldwide because it constitutes heaps of agro-wastes that contributes immensely to greenhouse gas (GHG) emission. Their contributions to environmental hazards are enormous due to high production of methane gas while degrading. A methane gas can be used for domestic and industrial applica...

A U-channel screw jack for extracting vegetable oil was developed through design (with Solid works–Computer Aided Design (CAD)) and fabrication processes. A factorial experiment in a Randomized Complete Block Design (RCBD) was used to investigate the effect of heating temperature (50, 60 and 70°C) and heating time (5 and 10 min) on the performance...

A machine for dehulling fluted pumpkin seed (Telfairia occidentalis) was developed. The main objective of developing the machine was to provide a better substitute to traditional methods of dehulling the seed which contains edible oil of high medicinal and nutritional values. Traditional methods are full of drudgery, slow, injury prone and would le...

With increased expectations for high quality food products and safety standards, the need for accurate, fast and objective quality determination of moisture, purity, germination and pathogen free food products and grains during bulk storage continues to grow. This paper reviews the application of image analysis in food grain quality inspection and...

Egusi is an important oil seed plant used in the food industry. However, the washing of egusi seeds after harvest has been a major challenge to the egusi farmers in Nigeria. The washing of egusi seeds after harvest is locally done by the use of basket containing unwashed egusi seeds submerged inside water and washed with hand to remove the slime an...

The presence of impurities in food grains greatly impact their grades and quality as well as their overall acceptance. Additionally, bulk grains storage is subject to deterioration and losses through factors that could be biological (insects, fungi, mites, mould, rodents) or environmental (temperature, moisture and relative humidity). Several techn...

Fake news has been there since before the advent of the Internet. It has had an immense impact on our modern society. Detecting fake news is an important step. Although there are various ways and methods in which fake news can be detected and solved. In this research paper we discuss the various conceptual frameworks and how they affect fake news....

This paper presents Computational Fluid Dynamics (CFD) in the drying process of green bell pepper in a cabinet tray dryer using three drying temperatures (50 °C, 55 °C and 60 °C). Engineering simulation software ANSYS 14.5 was used to simulate the model of the dryer in 2 Dimensional (2D). The ANSYS Design Modeler modeled the 2D representation of th...

This research uses SWFS 2014 SP 4.0 CFD program to present the warm air stream profile in a Center Shaft Rotary Tray Cabinet (CSRTC) dryer. The flow profile is conducted using SolidWorks Flow Simulation (SWFS) 2014 SP 4.0 software in terms of temperature distribution, air velocity, pressure field pattern, turbulent intensity and enthalpy profiles a...

This paper presents a simulation of the drying process of okra (Abelmoschus esculentus) in a Center Shaft (CS) Rotary Tray Cabinet Dryer using three drying temperatures (50, 60 and 70 ° C). ANSYS 14.5 Workbench was used to simulate the dryer model in 2D (2 Dimensional). The detail of the CFD simulation was utilized to investigate the energy and exe...

A bush mango (Irvingia gabonensis) nut cracking machine was designed to ease the tedium involved in the cracking operation and enhance the efficiency of separating the kernels from hulls. The machine consists of a hopper, cracking unit barrel, electric motor, blower, tool frame, hull outlet and kernel outlet. It operates on the principle of impact...

Chemical compositions of chicken eggshell were determined with the aim of finding economic uses for it; instead of becoming a nuisance to the environment. The concentrations obtained were (mg/L): calcium 2300.33 ± 3.80, magnesium 850.00 ± 1.24, sodium 33.83 ± 0.72, potassium 17.06 ± 1.04, iron 1.4 ± 0.03, zinc 0.99 ± 0.04 and copper 0.063 ± 0.01. T...

The use of inappropriate equipment to crack bush mango (Irvingia gabonensis) nut to obtain the kernel has adversely affected the processing and utilization of the crop. The manual method of cracking the nut with stone, cutlass or pestle and mortar, is not only slow and risky, but also wasteful. Knowledge of the nut mechanical properties is importan...

The effect of moisture content on some physical properties of bush mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52%-20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in...

A study to investigate the effect of osmotic solution concentrations of common salt (5%(w/w), 10%(w/w), 15%(w/w), 20%(w/w) and 25%(w/w)) and osmotic process durations (60 min, 90 min, 120 min, 150 min and 180 min) at average room temperature of 31 °C on the drying rate and nutritional qualities (vitamin C, crude protein, crude fibre, fat and ash co...

Computational Fluid Dynamics simulation of air flow distribution, air velocity and pressure field pattern as it will affect moisture transient in a cabinet tray dryer is performed using SolidWorks Flow Simulation (SWFS) 2014 SP 4.0 program. The model used for the drying process in this experiment was designed with Solid Works 2014 SP4.0 while the s...

The effect of two process conditions (temperature and heating time) on some physico-chemical properties (pH value, Free Fatty Acid (FFA), saponification value, acid value, refractive index and viscosity) of groundnut oil extracted with a vertical screw jack was investigated. The following equipment were used: a vertical screw jack, digital weighing...

A study on modeling and optimization of osmotic dehydration and drying of green bell pepper was carried out. Five levels of osmotic process durations (60 min, 90 min, 120 min, 150 min and 180 min) and five levels of osmotic solution concentrations (5% (w/w), 10% (w/w), 15% (w/w), 20% (w/w) and 25% (w/w) as input parameters were used. Design Expert...

A study to optimize three mineral contents (magnesium, potassium and manganese) of dried osmo-pretreated green bell pepper was done using Response Surface Methodology (RSM). Five levels of osmotic solution concentration (A) (5% (w/w), 10% (w/w), 15% (w/w), 20% (w/w) and 25% (w/w)) of common salt and osmotic process durations (B) (60 min, 90 min, 12...

A fruit washing machine was designed and fabricated taking into consideration the techno-economic status of the micro, small and medium scale fruit farmers who are the intended users of the machine. Considerations also included high washing capacity and efficiency and the desire to make the construction materials of stainless steel to ensure the qu...