ABSTRACT The research titled extraction and characterization of watermelon seed oil was carried to investigate the effect that different drying methods, solvents and seed size would have on the quality and quantity of oil from watermelon (Citrilus lanatus) seeds. The watermelon seeds were removed from the pod and washed. The sample was weighed and divided into two equal parts; one part was subjected to sun drying while the other part was subjected to oven drying (at a temperature of 30 oC). D...
ABSTRACT Nigeria is the most populous Black race country in Africa and in the world with a total land area of 983,213 km2 occupied by over 160 Million people: The interaction of these millions of people with their environment has left indelible mark on the landscape. Urbanization, deforestation, flooding, desertification, over population and all kinds of pollution are some of the resultant effects of man’s interaction with his environment. These changes result from the populace attempt to ...
Nigeria has plenty of Agricultural waste products such as coconut fibre, rice husk, corn cob and oil palm frond fibre. If the waste cannot be disposed properly it, will lead to social and environmental problem.The selection of coconut fibre in this study is a good effort in order to reduce a bulk of coconut fibre waste in Nigeria, according to a survey that was conducted by Ministry of Agricultural, Malaysia (Hisbany, 2005). There will be a huge amount of waste with these huge plantations. ...
ABSTRACT This experiment is to design PID controller to supervise and control the speed response of a DC motor and MATLAB program is used for calculation and simulation. PID controllers are widely used in an industrial plants because of their simplicity and robustness. Industrial processes are subjected to variation in parameters and parameter perturbations; hence, PID controllers that can provide good closed-loop response characteristics are chosen. TABLE OF CONTENT Abstract ..................
Abstract This project work centered on construction of 12V/10A solar charge controller that is needed in photovoltaic system to safely charge regulate and discharge of sealed lead acid battery through DC load. Solar charge controller is devices that regulate solar photovoltaic power and prevent overcharging, over discharging or overflow of current that reduces the lifespan, durability and performance of the battery. The12v/10A solar charge controller was constructed using variable resistor, ...
INTRODUCTION TO NANOTECHNOLOGY Nanotechnology has gained ground in the twenty-first century and is rapidly growing due to the ability to manipulate and harness properties of assemblies that are at the nanosize scale of biomolecules. Bionanotechnology is defined by science’s growing ability to work at the molecular level, atom by atom, combining biological materials and the rules of physics, chemistry and genetics to create tiny synthetic structures [1]. The end result of nanotechnology...
ABSTRACT The paper discusses the solar energy potentials and drawbacks as sustainable alternative energy source for Nigeria, the numerous issues involved in harnessing solar energy and clearly articulates a road map to enable Nigeria tap into this huge potential. Research indicate that, Nigeria lying in the tropics, receives abundant sunshine where about 1500PJ (about 258 million barrels of oil equivalent) could be available to Nigeria annually from solar energy if solar appliances with 5% c...
The aim of this project is to shows the possibility of wireless power transfer through the design of a wireless charging pad. In this project write-up, the methodology and principle of operation is wireless power transfer through inductive couple, a feasible design is modelled accordingly. The inductive couple technique is used because it is the easiest method of wireless power transfer with high efficiency and large amount of energy transfer. This report showed the versatility in range of a...
Abstract This project work was embarked on the construction and determination of the efficiency of 12 volts DC fan using two N3055 transistor, 1kΩ variable resistors, resistors, breadboard, veroboard, 12 volts DC battery and connectors at Science Laboratory Technological Department, Federal Polytechnic Offa, Nigeria. This is always required to minimize, control or totally eliminate the power fluctuations received at the load end or consumer end that usually lead to the reduction of DC fan li...
ABSTRACT In our present society, wireless communication has become most prevalent and mobile units (hand held devices /GSM/ Computers) are one of the most common equipments for conveying messages wirelessly. Owing to the fact that most youths in our society today on the average make use of at least one wireless device that communicate with other wireless devices via the internet, has made engineers start to think about ways to improve the quality of service (QOS), throughput, spectral effic...
ABSTRACT The rapid growth in the use of wireless communication in mobile network devices has made many engineers and researchers to start to look into ways to enhance data transmission either in form of voice, text, data, streaming multimedia, internet etc. Wireless Services that occur in real time require very little or no bit error during transmission in order for the receiver to get an intelligible information from the transmitting station. Whereas some services require more data to be tra...
ABSTRACT Biomass is organic materials that are made from plants and animals. Biomass stored alot of energy from the sun. Biomass is renewable sources of energy which can grow more such as trees and crops, and waste always exist. Example of this biomass may include wood, forage crops, manure and some garbage and alcohol fuels. The usable forms of energy suc...
Abstract A pyrolysis reactor was designed and fabricated for the production of bio-esters used in formulating green lubricants for the drilling industry. Samples of Tectona Grandis, Eucalyptus Torreliana, Jatropha Curcas leaf and Cornhusk were each pyrolysed in the reactor at 5000C. Bio-oil obtained was analyzed for their Density, Acid value, % FFA and Viscosity at ambient conditions. Bio-oil was upgraded by esterification using Methanol and synthesized Silica Sulphuric Acid (SSA) as c...
ABSTRACTThe design of a 1000 tonnes per annum Shea butter plant was carried out using data obtained from literature. Assumptions were made, where experimental data were not available. The block diagram, process flow sheet, material and energy balance on the process was carried out and presented on this work. A total of six units were used in the design, comprising of the dryer, de-sheller, roaster, expeller, filter and refiner (reactor). The plant is expected to operate for eight hours per da...
ABSTRACTA study on the effects of post- harvest variables on the yield and quality of Shea butter wascarried out. The Shea nuts acquired from villages were divided into five batches with avillage/uncontrolled sample. Each batch was boiled at different time ranges (0, 15, 30, 45 and60) minutes. Each batch was dried through an oven drying method. Also, each sample wasdivided into two equal parts and was cooked for 30°C (room temperature) and ...