ABSTRACT Automatic voltage inverter is an important area in power system engineering. It is the process of using a 12v DC from the battery to achieve a 220/230V AC through the help of oscillator, drivers, power transistors and transformer. The stages are battery to oscillators, oscillators to drivers, drivers to power transistors then from power transistors to transformer which is capable of giving out 220/230V (1000w) as an output. A 1.25KVA (1000w) voltage inverter was construct...
Time has come for people to know the implications of engaging non-professional builders in building construction works. The stoppage of engaging non-professional builders would reduce or even stop the event such as shoddy works, use of inappropriate materials/personnel’s and abandonment of project, cost overrun, and inadequate supervision/incompetence and incessant collapse of buildings. This project therefore delved into the imperative of engaging professional builders in building cons...
The continuous search for sustainable alternative energy to non renewable energy to mitigate environmental pollution has made waste heat recovery from industries process, material and energy streams frontier. Power plant technologies like steam and Organic Rankine cycle are been research by researchers to improve waste heat recovery efficiency and energy utilization. In this study Hexane and Toluene are the organic fluid used .Their performance in waste heat recovery in the melting fu...
Environmental pollution as a result of drilling and mining activities in areas where deposits of petroleum and oil are found, proved a great threat to the wellness of the fauna and flora as well as to the humans. TABLE OF CONTENTS Background of studyliterature reviewOil pollution act of 1990DieselChemical composition Volatility of DieselSoil, it's chemical and physical properties Site CharacterizationSoil contamination Sources of organic contaminants SurfactantsKrafft and cloud points...
This project seek to modify the existing cassava grating machine to make it to be self-feeding in operation, to make the operation of the machine easier, safer The existing processing techniques used in the production of cassava starch and cassava dough leaves much to be desired. There are difficulties in the grating of the cassava dough, since the conventional methods available is time consuming and labour intensive. In the modified design, two side hopper, belt drives, gears and pulley will...
A lawnmower is a machine that uses a revolving blade or blades to cut a lawn grass. Many designs have been made, each suited to a particular purpose. Manual grass cutter has environmental issues regarding pollution's and also require the need of man power to operate and has a great maintenance to its engine. This robot is design to be environment friendly and operated by a rechargeable battery and can be describe as an intelligent robot because the micro-controller receives information from s...
TABLE OF CONTENT TITLE PAGE CERTIFICATION ii DEDICATION ...
Plastic bio-sand filter is a prototype of a slow sand filter which purifies water using sand and gravels of specific sizes of (0.36mm, 2.36mm, 6.35mm), this filter has been designed and constructed to evaluate its performance using raw water from fishpond at faculty of Engineering, Ahmadu Bello University Zaria and to remove pathogenic organisms present in the water. The filter is composed of a lid which covers the whole filter from the entrance of debris or contaminants, a perforated pl...
Oil 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, their acid ...
TABLE OF CONTENT APPROVAL PAGE………………………………………… II DEDICATION………………………………………………….III ACKNOWLEDGMENT……………………………………….IV ABSTRACT…………………………………………………….VII TABLE OF CONTENTS……………………………………….VIII CHAPTER ONE 1.0 INTRODUCTION…………………………………………….. 1 1.1 S...
Due to the need for recycling Polyethylene terephthalate (PET or PETE) materials, especially bottles because of its various uses and applications, it was necessary that a locally made machine for crushing and shredding the PET materials was fabricated. The crushing process is necessary so as to aid the transportation and workability of the material. This is a paper work for the activities carried out in the design, construction and fabrication processes.
ABSTRACT This project work deals with the design and fabrication of a suitable journal bearing test apparatus which can help in visualizing the behavior of journal bearing and its characteristics, and in determining the bearing parameters such as load bearing capacity, maximum oil film temperature, viscosity of lubricant, oil film pressure, and coefficient of friction based on experimental analysis. The work covers the design of a test apparatus which can be utilized to check the behavior of...
Kenaf reinforced polyethylene composites for ballistic protection was produced in this work. The samples of alkaline treated and silane-coupled non-woven matted kenaf fibers were cut to the required dimensions and oriented vertically and horizontally in combinations with a virgin high density polyethylene (VHDPE). The composite panels were produced using Box-Behnken 3-variables settings. The following factors settings were used (molding temperature: 160 0C to 200 0C; molding time: 60 minute...
Abstract A smoke detector is a device that senses smoke typically as an indicator of fire or non- smoking zone. In order to ensure human safety and safeguard property against fire in both domestic and commercial settings, different solutions for smoke detection have been developed, a comprehensive literature was carried out on smoke detector, this project describes the construction and design of a micro controller smoke detector, it discusses the components used, design methodology and test...
ABSTRACT The potential advantage and application of the photocatalytic process using titanium dioxide as the photocatalyst to treat industrial waste water in UV irradiation has been reported. The aim of this work is to investigate the effectiveness of photocatalytic degradation using TiO2 in treating pharmaceutical waste water. Wastewater was collected from the homogenous tank of effluent treatment plant (ETP) of a Pharmaceutical company. The raw sample was tested and the COD, BOD and pH we...