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 ...
Fossil fuels (coal, fuel oil and natural gas) still meet the major part of our energy demand and are getting fast depleted. Moreover, there are serious pollution hazards like greenhouse effect and global warming which occur due to fossil fuel burning. The use of nuclear power too has its own problems and nuclear fusion is yet to be realized in practice. We have thus been forced to look for non-conventional power generation systems so as to reduce fossil fuel consumption by increasing the conv...
Crude oil viscosity is an important parameter which is considered in both porous media and in pipeline channels. Estimating oil viscosity at various operating conditions of pressure and temperature is of great value to petroleum engineers. In petroleum and reservoir engineering, we are often faced with the analysis of processes which involve petroleum fluid properties, but in many cases no experimental data is available. At such cases, empirical correlations are used to estimate the oil visco...
This paper presents the results of the investigation conducted to assess the latter day strengths of concrete in which the cement constituent of the mix has been partially replaced by empty palm oil fruit brunch (EPO-FBA). The structural parameters investigated were: workability, density and compressive strength. Some physical properties and chemical analysis were conducted. Slump test was used...
This paper presents the findings of a research work conducted on how to improve the mechanical properties of concrete using Date Palm Seed Ash (DPSA) as partial replacement of cement. The DPSA used was obtained by controlled burning of date palm seed in a kiln at a maximum temperature of 630oC for eight hours and air cooled afterwards. The ash obtained was sieved through 75μm sieve and its oxide composition analysed using X-ray fluorescence (XRF) procedures. DoE method of mix design was used...
The effect of particle size of date palm seed ash (DPSA) on concrete properties was investigated through the use of different fineness of date palm seed ash (600um, 300um, 150um and 75um) at 2.5% replacement of cement with date palm seed ash and tested for compressive strength at 7, 21, 28 and 56 days curing duration. The consistency and setting times of cement-DPSA paste was also researched to determine the amount of water required to prepare hydraulic cement paste for testing. The date palm...
The suitability of palm kernel shell as a partial replacement of fine aggregate in concrete was researched to verify if concrete made with palm kernel shells meet some minimum standard prescribed for strength and density. Based on British standard classification of fine aggregate as aggregates passing the number 4 sieve of 4.75mm size or slightly higher sizes depending on local requirement, crushed palm kernel shells of particle diameter not greater than 5.0mm was used to replace river sand a...