Engineering

Research Papers/Topics in Engineering

Ergonomic modification and performance evaluation of a shoulder-strapped brush cutter

Ergonomic studies were carried out on selected shoulder-strap brush cutters to evaluate some deficient ergonomic factors associated with their operations. These deficiencies were used as basis for modification. Contextual interview and field interactions were used to obtain ergonomic data that are descriptively analyzed. Results of ergonomic assessment shows that operators are subjected to pains around the neck, shoulders, upper arm and fingers which are largely traceable to shoulde...

Modification and performance evaluation of a dual-function okra processing device

The performance evaluation of a dual-function device for slicing and drying Okra developed at the Federal College of Agriculture, Ishiagu Nigeria was carried out and reported.  The device was designed to slice and dry okra in one single-sequence operation.  To evaluate the devices, some physical characteristics (the axial length, mean equivalent diameters and sphericity) of okra samples were measured to determine blade distance and other machine considerations.  The results showed ...

Performance evaluation of three coconut cracking devices and comparison with conventional cracking technique

Performance of three coconut cracking devices; punch-split, impact-split, hydraulic-split were carried out and their comparison with conventional (hand cracking technique) evaluated. Each cracking technique was evaluated for capacity, efficiency, ergonomics, and time required to crack a unit of different coconut grades.  The results showed that the average cracking efficiency for punch-split was 87.09 percent with a range of 86.76 to 95.00 percent, impact-split efficiency vari...

Contemporary Developments in HVAC (High Voltage Alternating Current) and HVDC (High Voltage Direct Current) Power Transmission Systems.

The project aim is to design an HVAC and HVDC transmission system using MATLAB simulation followed by testing the systems and running analytical results, reviewing their power transfer capabilities with reference to their operational performance under different situations in advent of their technological aspect. The aims and objectives of this project are:        I.            Describing HVAC...

CHARACTERIZATION OF NON-EDIBLE OIL FROM WASTE PLANT MATERIALS FOR PRODUCING BIODIESEL

ABSTRACTOil obtained from orange peels and velvet tamarind nut by solvent extraction (n-hexane and acetone) using the soxhlet extractor were investigated as feedstock’s to determine some of the suitable parameters such as iodine value, saponification value, specific gravity, density, acid value and free fatty acid value, and their percentage yield that are suitable for biodiesel production. The density of orange and tamarind oil were found to be 0.9326g/cm3 and 0.8541g/cm3 respectively, the...

A fuzzy-based decision support system for soil selection in olericulture

With the advent of modern computer technology, the field of Artificial Intelligence is playing a significant role in improving almost every spectrum of human life. In the field of agriculture, there is always need for optimality with improved crop yield. This paper dwells majorly on the application of fuzzy logic to predict crop type with optimal crop yield based on available soil nutrients. Some soil data samples were collected from the department of soil science, Federal University of Agric...

A K-Means Clustering Approach for Extraction of Keyframes in Fast-Moving Videos

The explosive growth of video data necessitated the need for large amount of storage devices. Nonetheless, the stored multimedia data has a lot of redundant video frames. These redundant frames make video browsing and retrieval difficult for the user as well as time consuming. Thus, negatively affecting bandwidth utilization and storage capacity. In order to improve the bandwidth utilization and storage capacity, keyframe extraction algorithms were proposed. These algorithms were implemen...

Laundry Business

Details on how to set up good laundry business

The benefits of using solar energy as an alternative means of cheaper energy source.

Solar energy is the energy that is in sunlight. It has been used for thousands of years inmany different ways by people all over the world. As well as its traditional human usesin heating, cooking, and drying, it is used today to make electricity where other powersupplies are absent, such as in remote places and in space. It is becoming cheaper to makeelectricity from solar energy and in many situations it is now competitive with energyfrom coal or oil. A solar cooker can be used for cooking ...

The Design and Fabrication of a used Polyethylene

In this paper, the design and fabrication of a Polyethylene Terephthalate (PET) bottle recycling machine was undertaken. It was designed to wash a set of two (2) 75cl used PET bottles in 10 seconds. The washing, rinsing and sterilizing chambers were made of stainless steel. The rotational wash brushes were made of plastic bristles, and the machine runs on a single phase electric motor with a washing speed of 470 rpm. After fabrication and testing, results obtained showed a set of two (2) 75cl...

Performance Evaluation of Biomass Briquette from Elephant and Spear grass in Benin City, Edo State, Nigeria

This research work is aimed at the performance evaluation of biomass briquette from elephant and spear grass in Benin City, Edo State, Nigeria. The grasses were dried, pulverized and compressed by the briquetting machine to produce the briquettes. The performance evaluation shown that elephant and spear grass briquettes had a good compressive strength between 2.0N/mm2 and 1.2N/mm2; ash content (5.18% and 6.13%) and calorific values (15013.9KJ/Kg and 15990.0KJ/Kg) respectively. The briquettes ...

Performance Evaluation of a Developed Multipurpose Solar Dryer

Post-harvest losses in developing countries have contributed to the unavailability of foodstuff. Estimation of these losses is generally cited to be of the order of 4% but under very adverse conditions, it is estimated as high as 100%. A significant percentage of these losses are related to improper and/or untimely preservation of foodstuffs. This research work is therefore aimed at developing a multipurpose solar dryer. The solar dryer consists mainly of solar collector and dryer chamber com...

Pure Pursuit Algorithm and Autonomous Driving

Pure Pursuit Algorithm is a commonly used path-tracking algorithm that in autonomous driving applications determines the steering rate necessary for the vehicle to stay on track. The aim of the project is to set up a simulation of a moving UGV and experiment with different mathematical solutions to improve the existing technology, making it suitable for a wider spectrum of applications. The main result produced by this research is a Modified Follow the Carrot Algorithm capable of high accurac...

Micro Controller based smart under and over voltage Protection Device

This Project present the design and construction of a microcontroller based under and over voltage protection device, which is achieved using a microcontroller, transistor and other discrete components. A microcontroller PIC16F877A is at the heart of the device which performs the major control of the device. The device is simple and low cost. It can withstand loads of up to 2KVA, while allowing the supply Voltage to be connected load to vary from 200-240 volts.

DEVELOPMENT OF A FLAT PLATE SOLAR STORE

ABSTRACTThe fabrication of the solar dryer was successful and test were carried out for various performance comparisons such as No-load and Load performance of the dryer and direct sun drying comparison and noticeable differences was noticed in the final moisture content such that the maximum temperature recorded in the drying chamber and solar collector for No-load are 44.5 and 52 respectively and also for when the cabinet is loaded the above stated temperatures are 66 and 76.5 for a highest...


46 - 60 Of 994 Results