Development of a Savonius Vertical Axis Wind Turbine
Wind energy is abundant, inexhaustible, affordable, environmentally preferable, and equally sustainable. More researches are emerging in the analysis of wind energy in Nigeria and each have proven that great potential exist for wind power generation in Nigeria but sufficient results is yet to be achieved in terms of application. The present research is intended to apply the technology of wind energy for pumping of water in rural Nigeria. To achieve this, a Savonius vertical axis wind turbine ...
PREDICTION AND OPTIMIZATION OF EN8 MILD STEEL MATERIAL
The demand for EN8 mild steel in the industry is high due to its integral mechanical properties. However, conventional machining of EN8 mild steel is a challenging task. In this research work, prediction and optimization of EN8 mild steel Material Removal Rate (MRR) and Surface Roughness (Ra) using Response Surface Methodology (R.S. M) were investigated. The dimension of the EN8 mild steel material was 0.12 m diameter and 0.08 m in length. The turning operation of the ENS mild steel was carri...
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...
Performance Analysis of Locally Design Plastic Crushing
This paper is focused on the performance analysis of locally design plastic crushing machine for domestic and industrial use in Nigeria. A plastic crushing machine designed and fabricated from locally sourced materials were used to crushed plastic materials mainly to reduced plastic wastes dumped across Nigeria cities. Performance analysis was carried out on the plastic crushing machine and the efficiency was calculated as 85.16% while the average machine through put capacity was determined a...
Experimental Application of Strain Gauge Rosette and Determination of Principal Strains Using Mohr Circle
The objective of the experiment was to understand the practical application of strain gauge rosette and to determine principal strains and their direction using Mohr circle. Elastic constants of the specimen were evaluated using the values obtained from the experiment. The constants gotten from the experiment were compared with the standard elastic constants for steel. The comparison showed that the elastic constants evaluated from the experiment were very close to the standard ones. The smal...
Evaluation of Cow Dung and Talinum Traingulare as a Seeding Agent for the Production of Biogas from Domestic Wastes in Warri Metropolis
The evaluation of cow dung and talinum triangulare (water leaf) as a seeding agent for the production of biogas from organic domestic wastes was conducted in Warri metropolis, Nigeria. The experiments were conducted within a period of thirty seven days in a steel bio-digester. The biogas produced was dried, purified and transferred into a commercially available 7.5Kg gas cylinder using a compressor. The results obtained showed that the domestic wastes seeded with cow-dung and talinum triangul...
Economic Potential and Benefits of Sawdust in Nigeria
At present, the main conventional source of energy used all over the world is the fossil fuels which are non-renewable and hence their deposits will eventually be exhausted. Wood is one of the oldest fuel sources known to man. Research have shown that about 80 million cubic metres, equivalent to 43.4 x 109 kg (or 43.4 million tonnes) of fuel wood with an average daily consumption ranging from 0.5- 1.0 kg of dry fuel wood per person is being consumed in the country annually for cooking and oth...
DESIGN OF IMPROVED CASSAVA PEELING MACHINE
Cassava peeling remains the only unsuccessfully mechanized process which has constituted a global challenge to the cassava food industries. A major constraint in existing cassava peeling machine is the poor quality of finished products obtained, coupled with poor efficiency of the technologies. This research work is focused on the design and development of an improved continuous cassava peeling machine. The machine frame work is rectangular in shape measuring 2700mm in length by 1200mm in wid...
Design of a Multi-Purpose Crushing Machine for Processing of Food Grains in Nigeria
Crushing of farm produce for easy storage and consumption is still a problem in most rural areas in Nigeria. Large tons of food crops are lost annually in Nigeria as a result of unavailability of storage facilities. This necessitated the design of a multi-purpose crusher to save crushing energy with minimal grain losses, being the primary aim of this study. The major components of the designed crushing machine consists of a hopper, crushing chamber, shaft, hammers, screen, bearings, discharge...
Design and Development of Low Cost Groundnut Decorticating Machine for Home and Commercial Use in Nigeria
This work is aim at the design and development of a low cost groundnut decorticating machine for home and commercial use in Nigeria.4.36Kg of roasted groundnut was fed into the machine; this produces an average mass of 3.43Kg of peeled roasted groundnut seeds, 0.462Kg of unpeeled groundnut seeds,0.399Kg of partially peeled groundnut seed and 0.07Kg of broken groundnut seed. An average time of 488.8seconds and an average peeling efficiency of 78.46% was recorded. It was observed that the highe...
Comparative Analysis of Yam Pounding Machine and the
In this paper, traditional method of pounding yam with mortar and pestle was compared to yam pounding machine. Random yam selection was done from a mix of new and old yam. Cooking time, temperature and pounding time were all recorded. The machine consists of a metallic casing with an electric motor sitting on a suspended floor base and connected via a pulley to a shaft and blade. A unique modification to the concept is its water heating and cooking ability by the inclusion of a heater coi...