Papers by Awogbemi Omojola
International Journal of Engineering & Technology, 2020
The need to find an environmentally friendly, renewable, and biodegradable fuel to reduce the gro... more The need to find an environmentally friendly, renewable, and biodegradable fuel to reduce the growing dependence on fossil fuels and its attendant performance and emission inadequacies has increased research in biodiesel. Due to its low cost, availability, and a veritable means of waste disposal, waste vegetable oil from restaurants, waste fats from slaughterhouses, grease from wastewater treatment plants has gained prominence as biodiesel feedstock. This present effort compares the properties and fatty acid (FA) composition of neat palm oil (NPO), waste palm oil (WPO), and waste palm oil methyl ester (WPOME). WPO used to fry fish and chips (WPOFC), and waste palm oil used to fry sausage and chips (WPOSC) were collected at the point of disposal. The WPOFC and WPOSC were converted to WPOMEFC and WPOMESC, respectively, by transesterification and subjected to property determination and gas chromatography-mass spectrometer analysis. The characterization showed that the ratio of saturate...
International Review of Mechanical Engineering (IREME)
Access to clean, affordable, and environmentally friendly energy is a condition for attainment of... more Access to clean, affordable, and environmentally friendly energy is a condition for attainment of sustainable development. This paper discusses how Nigeria can exploit and utilize solar photovoltaic (PV) in her journey towards sustainable development. The Solar PV is a renewable source of energy that offers clean, everlasting, and environmentally friendly energy that can be used in households, education, health, agriculture, social, communal, commercial and industrial sectors of the economy. Practical applications of solar PV includes for lighting, water pumping, cooking, phone charging, vaccine preservation, dairy refrigeration, egg incubation, crop and manure drying, as well as fish and poultry production. The paper enumerated the benefits derivable from utilization of solar PV to include employment generation, increased agricultural production, access to large pollutionfree energy source among others. The paper concluded that if the identified constraints to exploitation and utilization of solar PV are tackled and the recommendations adhered to, Nigeria will be on her way to attaining sustainable development by increasing the energy accessibility of her citizens through utilization of solar PV.
International Journal of Scientific & Technology Research
This research is on the development and testing of a biogas-petrol blend to run a spark ignition ... more This research is on the development and testing of a biogas-petrol blend to run a spark ignition engine. A20:80 ratio biogas:petrol blend was developed as an alternative fuel for spark ignition engine test bed. Petrol and biogas-petrol blend were comparatively tested on the test bed to determine the effectiveness of the fuels. The results of the tests showed that biogas-petrol blend generated higher torque, brake power, indicated power, brake thermal efficiency, and brake mean effective pressure but lower fuel consumption and exhaust temperature than petrol. The research concluded that a spark ignition engine powered by biogas-petrol blend was found to be economical, consumed less fuel, and contributes to sanitation and production of fertilizer.
Hydropower currently makes about 20% contribution to the global electricity supply, second to fos... more Hydropower currently makes about 20% contribution to the global electricity supply, second to fossil fuel and it is one of the cleanest and most reliable sources of energy. Nigeria is endowed with enormous hydropower potential that needs to be harnessed. Despite this huge potential which is enough to meet all the electricity needs of the country, only a small fraction has been exploited. This is due to the lack of political will to enact policies aimed at efficient utilization of energy and also the presence of major technical, financial and environmental challenges that needed to be overcome for the development of this resource base. This paper describes the use of mini-hydro or Small Hydro Powers (SHPs) as an alternative source of energy for rural electrification. The paper identifies potential sites of SHPs and it recognizes that, apart from benefits accruable to the SHP use, it is a way of tackling the challenges posed by globalization and in order for these energy projects to be successful, there is also need for regions in Nigeria to pool resources together to strengthen and accelerate regional cooperation among one another. In addition to this, the paper describes the design procedure for an installed capacity of 25KW mini-hydropower scheme. In conclusion, it recognizes the barriers to the development of Hydro power schemes in Nigeria and suggests ways via which these barriers can be surmounted.
The effects of two varieties of sawdust from hard and soft woods as seeding materials on biogas y... more The effects of two varieties of sawdust from hard and soft woods as seeding materials on biogas yield were investigated. The substrates for the experiment in an anaerobic laboratory digester are cow dung and cassava peels. The hard woods are Mahogany and Iroko, while the soft woods are Obeche and Araba. The experimental setups were subdivided into four groups of digesters. Each group was made up of four digesters seeded with sawdust from the wood types in the following percentages: 33%, 27%, 20%, and 11%. 200g of cow dung and cassava peels were mixed with 120cm 3 of distilled water in each digester. The seeding materials in different percentages were added and mixed thoroughly and the biogas produced was recorded at a regular interval of 4 days for an hydraulic retention time of 40 days. The volume of biogas produced ranged from 60cm 3 to 2800cm 3. In all the experiments, the biogas yield decreases with decrease in percentage of sawdust seeding materials. Digester A in group I with 33% of mahogany has the largest biogas yield of 329.63 cm 3 / day while digester H in Group II with 11% Iroko sawdust has the least yield of 61.63 cm 3 /day.
The performance evaluation of an automated traveling baking and roasting oven is presented. The o... more The performance evaluation of an automated traveling baking and roasting oven is presented. The oven consists of a 300mm x 300mm traveling tray, a 4500mm chain, and a 17 teeth sprocket to drive the chain. Heating is provided by two 30- Watt heaters installed in a baking/roasting area of 0.18m 2 . Two delay timers are installed to control the movement of the tray and the heating chamber while a thermostat regulates the heaters temperatures. A 70g meat pie sample was baked at 200 o C, 250 o C, and 300 o C oven temperatures for 40 minutes. The meat pie sample was inspected every 5 minutes interval to determine the time for the bread roll to be fully baked. The result of the inspection tests carried out on the samples showed that it took the 15 minutes for a 70g meat pie sample to be baked. It also revealed that the best baking temperature is 250 o C.
International Journal of Engineering and Technology, 2009
The effect of solar drying on the quality of three species of vegetables is presented. These spec... more The effect of solar drying on the quality of three species of vegetables is presented. These species are amaranthus (tete in local language), vernonia (ewuro) and fluted pumpkin (ugu). Proximate analysis and microbial load analysis were carried out on the vegetable samples after each day of drying for a total of 5 days. The solar irradiation for the period varied from 89 W/m2 to 203 W/m2. Both analyses show that the nutritional composition of the fresh vegetable and their microbial load decreases with each day of drying. To have maximal nutritional values from vegetables, it is best to consume them fresh. However, for storage purposes, two days of drying is sufficient to prevent spoilage and at the same time retain an average 70% of fat, 80% ash, 70% carbohydrate, and 60% protein of their initial nutritional composition.
Journal of Engineering and Applied …, 2009
Journal of the Energy Institute
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Papers by Awogbemi Omojola