Engineering

Research Papers/Topics in Engineering

Design and Performance Evaluation of an Ice Block Making Machine

ABSTRACTThe ambient temperature of tropical countries like Nigeria is as high as 40oC during the dry season. This ultimately gives rise to increase in demand for ice which is used to reduce the temperature of water, soft-drinks as well as other uses. This increase in demand for ice block makes the design and construction of a machine which can be used for the production of ice within a short period of time in order to save energy and time imperative and a worthwhile venture. This paper presen...

THE STUDY OF PROPERTIES OF BRIQUETTE PRODUCED FROM GROUNDNUT SHELL COAL BLEND

ABSTRACTBiomass, particularly agricultural residues seem to be one of the most promising energy resources for developing countries (Patomsok, 2008). Rural households and minority of urban dwellers depend solely on fuel woods (charcoal, firewood and sawdust) as their primary sources of energy for the past decades (Onuegbu, 2010). Of all the available energy resources in Nigeria, coal and coal derivatives such as smokeless coal briquettes, bio-coal briquettes, and biomass briquettes have been s...

Design and Fabrication of an Ice Block Making Machine

ABSTRACTThe aim of this paper is to get a best performance by an ice block/cube making machine of refrigeration with suitable time. In present day hotels, resort and bar require more ice in very less time. So, to solve this problem and control the required time to ice formation, we construct an ice cube making machine. In present days, in market this machine is available with very high cost. So we try to make it at optimum price.Ice making machine consists of four key components; the evaporat...

A COMPARATIVE STUDY OF CHEMICAL AND MICROWAVE SYNTHESIZED ACTIVATED CARBORN FROM CORN COB

ABSTRACTActivated carbon, also widely known as activated charcoal or activated coal is a form of carbon which has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions (Mattson et al., 1971). The word active is sometimes used in place of activated. It is characterized by high degree of micro porosity. A gram of activated carbon can have a surface area in excess of 500 m2. Sufficient activation for useful applicatio...

COMPARATIVE ANALYSIS OF COAL, FUEL OIL AND NATURAL GAS FOR CEMENT PRODUCTION

ABSTRACTThis study is a comparative analysis of the use of coal, fuel oil and natural gas for cement production noting their physical and chemical properties, cost and availability, impact on the environment and human health. Out of the seven cement manufacturing industries in Nigeria, three industries use these fuels were selected for the study. The industries are NigerCem –Ebonyi state, Dangote cement –Benue state and UniCem -Cross river state. Questionnaires were used to gather informa...

EFFECT OF PARTICLE SIZE ON OIL YIELD USING SCENT BEAN SEED (‘OZAKI’).

ABSTRACTThis project was done to extract and characterize bean oil according to their particle sizes. The experiment was carried out using scent bean (i.e. ‘Ozaki’, ‘Ijilizi’or ‘Azamu’) as sample. The oils were extracted by solvent extraction /leaching extraction using n-hexane. Proximate analysis was carried out to obtain percentage moisture content, ash content, total oil content, protein content and carbohydrate content of the extracted oils. From observation, it was noticed th...

EXTRACTION AND FORMULATION OF PERFUME FROM PLANT

ABSTRACTThe word perfume derives from the latin ―per fumum‖ meaning through smoke, is fragrant liquid that is sprayed or rubbed on the skin or clothes to give a pleasant smell. Extraction of perfume from various plants resources is of ancient origin. Infact the natives from different tropical regions of the globe have long been extracting oil from numerous oil bearing plants. Human since the ancient time have known how to extract oil from their natural resources. Vegetable oils are natura...

Technical report on the fabrication of a fan blade

ABSTRACTIn recent times, most of the household appliances are using electric power and as such, electricity shortage has become a major problem throughout the world. Ceiling fan is one of such appliances that consume electric power. The best way to minimize the power consumption of the ceiling fan is to reduce the weight of the ceiling fan blade. Thus, this project work entails the design of a new ceiling fan blade in which case the weight and power consumption was compared to the Panasonic m...

EXTRACTION AND FORMULATION OF PERFUME FROM LEMONGRASS LEAVES

ABSTRACTPerfume extraction refers to the extraction of aromatic compounds from raw materials, using methods such as distillation, solvent extraction, expression or enfleurage. The extracts are either essential oils, absolutes, concretes, or butters, depending on the amount of waxes in the extracted product. Heat, chemical solvents, or exposure to oxygen in the extraction process denature the aromatic compounds, either changing their odour, character or rendering them odourless. In this work t...

DESULPHURISATION KEROSENE

ABSTRACTThis report aimed at determining the presence and removal of mercaptan sulphur in kerosene using colour indicator method.  It is known that impurities such as free sulphur, sulphur dioxide, marketers, finding materials etc. are found in petroleum products. Consequently, absorbents like molecular sieve, calcium oxide and even activated carbon could be used to trap these impurities, thereby making the  product impurity free.The afficac of  the absorption  using &nbsp...

HEAD LOSES IN HORIZONTAL AND VERTICAL ORIFICEMETER A COMPARATIVE EVALUATION AND ANALYSES WITH APLLICATION OF STATISTICAL METHOD OF DATA RELIABILITY

ABSTRACTA comparative investigation was undertaken to determine the head loss coefficients for horizontally mounted and vertically mounted orifices using a Fluid mechanics and Heat transfer trainer developed in Nigeria. Experiments were carried out observing the procedure and the discharge of the flow of water was collected to obtain the volumetric flow rate and also read off the right and left limb of the horizontal and vertical manometers at different set points. The experimental measuremen...

THE DESIGN AND FABRICATION OF PRESSURIZED KEROSENE STOVE

INTRODUCTIONThis project of fabrication of single face pressurized kerosene cooker is a copied design.It is a manually operated type of stove, which has the capacity of supplying heat energy at high and low temperature. The type of stove so designed here do the industrial type with one burner. Since the introduction of this pressurized kerosene cooker many effort has been made in order to enhance the ability to function well. Thus we undertook this project design and fabrication of ...

MODIFICATION OF SURFACE, PHYSICAL AND CHEMICAL PROPERTIES OF ACTIVATED CARBONS FOR WATER PURIFICATION

ABSTRACTThe purpose of this work was to study the effect of chemical surface properties of activated carbons for their use in water purification. To achieve this objective, activated carbon in both granular and powdered forms namely: as received and devolatilized carbons were prepared. Proximate analysis of the carbon materials was performed. Mass titration experiments were carried out to determine the point of zero charge of the activated carbon materials. Again, using an ultraviolet spectro...

THE PRODUCTION OF BENCH SHEARING MACHINES

INTRODUCTION  The production of bench shearing machines to reduce, alleviate and probably eliminate suffering, time, money, wastage of material and more especially the need for technological break through and self reliance has been a major concern of the federal government. Metal shearing and shaping has been a tiring problem in the society from time immemorial especially toward our loco-parcatesis. To help eradicate these problem this project write up has delved  into simplicitie...

COMAPARISM OF THE EFFICIENCY OF SAWDUST, COCONUT FIBRE, WOOD CHIPS IN PURIFICATION CRUDE OIL POLLUTED WATER

ABSTRACTA comparative study was conducted among organic waste materials namely coconut fiber, hair, sawdust and woodchips as crude oil absorbents. Twenty grams of each of these materials were wrapped in a pouch and submerged into two set-ups, Set-up A: Pure Crude Oil and Set-up B: Crude Oil with seawater, for an hour. Amount of oil absorbed was gathered and recorded. ANOVA was conducted to verify if the results significantly differed. The results show that hair had the highest amount of ...


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