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...
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...
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...
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...
Many studies are on-going to optimize the properties of composites, this is because composite have found application in different industries due to their advantage of light weight. Scientists have turned their attention to using natural occurring materials for the development of novel materials. Animal waste is playing an important part in this area of application as using it is not only providing benign environmental solution but solving engineering challenges. In this study, the effe...
Abstract: In this study, a miniature fluidised bed boiler for steam generation was designed and constructed. The boiler ismade up of a steam drum, combustion chamber, downcomer and riser tubes as a heat exchanger, a non-return valve andsuperheater tube. Experimental investigation on the fuel distribution was carried in two-dimensional chamber with crosssection of 500 mm x 1000 mm and bed height of 77 mm, 47 mm and 27 mm. The results obtained from the performanceevaluation of the fluidised bed...
Limited or poor food separation techniques into fine particles for further processing cause post-harvest losses of food crops and initiates the problem of food and nutritional insecurity in Nigeria. In order to solve this problem, food crops need to be processed into a lasting and nutritious consumable form through the use of mechanization. Different materials in powder form or solid form are separated by using two-level screening machines. This machine can be used in different industries lik...
Abstract. The importance of brake systems in automobiles cannot be overemphasized. Brakes are used in speed control of vehicles and do so by the conversion of kinetic energy into thermal energy. Better stopping performance has favored the disc brake system over the drum brake system and has found wide application in high-performance vehicles. Brake fade, caused by thermal overload has placed a limit on the permissible temperature at which braking systems can function, and it is the task of de...
This is a thesis on the improvement of an S1 grinding machine. It has an overview from description of machine, material selection, design and a developed summary to help understand how improvement can be made. ABSTRACT The need for improved productivity in the agricultural industry cannot be over-emphasised. One of the key factors that influence this is increased availability of feed for animals. The use of mixing machines rather than hand-mixing ensures greater availa...
ABSTRACT The rate at which energy is lost by human activities is enormous. There is need to work on how to generate more energy and minimize the usage of the generated energy. In an internal combustion engine, there is need to focus on gaining energy usage by using generated heat during combustion process. To reduce the energy usage, emission rate and improve the efficiency of four-stroke internal combustion spark ignition engine, the four-stroke internal combustion spark ignition engine is m...
ABSTRACT This project illustrates the use of an exergetic approach to analyze the performance of a vapor compression refrigeration system using a refrigerant solution of a nanoparticle (TiO2), mineral oil, and R410a (base refrigerant). Exergy investigation is a thermodynamics strategy which allows for the assessment and improvement of a refrigeration system in terms of efficiency and performance with basis placed on the 2nd law of thermodynamics. The primary objectives of this project are to ...
The major components of a gas turbine are compressor, combustors, turbine and generator. It operates by continuous drawing in fresh air into the compressor. The Air is then compressed to a high pressure in the compressor and discharge into the combustion. Here the air is missed with gas and burns continuous once ignited to increase its energy level at constant pressure. The high pressure and temperature combustion product enters an expansion turbine that converts the gas thermal energy into m...
This project covers a study of the effect of seawater corrosion on 0.34% and 0.36% carbon steel compositions. Two (2) specimens (steel rods) of length 150mm (each) for both steel compositions were obtained. Out of each was gotten four (4) specimens of 10mm length, 10mm diameter and two (2) specimens of 50mm length, 10mm diameter. This yielded a total of twelve (12) samples. For each steel composition, one (1) specimen of 10mm length and one (1) specimen of 50mm length were heat trea...
ABSTRACT One of the most important resources of a nation is energy. The significance of energy definitely cannot be overemphasized as it is immensely utilized in our everyday activities as a very germane requirement for survival and robust lifestyle. The amount of energy availability and its usage in a country measures the level of industrialization. Several devices including machines, electronics, household electrical appliances and other domestic equipment and machines, industrial pro...
Abstract- Palm kernel production potentials of several countries are far from been fully exploited. At present, many countries are operating below expected capacity. The motive of the project work is based on fabrication and modification of a palm kernel cracker and separator, so as to help farmers improve the efficiency of output based on time, reduce stress and injuries they incur in the process of cracking palm kernel and separating the kernel seed from the shells manually. The major pri...