CFD investigation of mesh, boundary condition and location, and the effect of turbulence models on the turbulent separated flow over a forward-backward-facing step. A numerical model was set up to replicate and compare with the model in the literature. The Reynolds number, Re, is 1.7E5 based on step height 50 mm and obstacle length L = 10H. The freestream velocity of air at the inlet is 50 m/s. The simulation was performed using the ANSYS software.
Using Computational Fluid Dynamics (CFD), this paper investigates the effect of mesh material properties on the heat convection and conduction (fluid-solid interaction) of a vertical impinging round jet onto a stationary and moving horizontal surface, as well as the effect of conjugation in the solid domain. This paper is an excerpt from an assignment in Numerical Thermoflow that was completed in 2021 during my Bachelor of Science Honours in Applied Science Mechanics at the University of Pret...
ABSTRACT The steam boiler is to control specification problem, to illustrate how the evolving algebra approach to the specification and the verification of complex system can be exploited for a reliable and well-documented development of executable but formally inspectable and systematically modifiable code. A hierarch of stepwise defined abstract machine model in developed, the ground version of which can be checked for whether it faithfully reflects the informally given problem. The sequen...
ABSTRACT In present time due to increase in number of kidnapping and road accident cases, parent always worry about their children. This paper proposes a SMS based solution to aid parent to track their children location in real time. The proposed system takes the advantage of the location services provided by module kit which carry by the child in their school bag. It allows parent to get their child location on a real time map by the geographical co-ordinates which send by module kit. Infor...
ABSTRACT Maintenance is the technical exercise that is usually carries out on machines to restore a component going to fail or failed component back to it design function in the machine. The role of maintenance in machine work shop can not be over emphasized, because without it, many causality that would have been recorded in a workshop would have been much, most especially in some machine workshop that deal with the use of hazardous chemical in their production process of materials. e.g petr...
TABLE OF CONTENT PAGES Front page………………………………………………………………………… i Certification……………………………………………………………………….. ii-iii Dedication…………………�...
ABSTRACT Refrigeration is term used to denote the maintenance of a body at a temperature lower than that of its surroundings. The applications of refrigeration are many and varied. In addition to the common applications of refrigerationin the manufacture of ice, in the preservation of foods, in air-conditioning filed, and in the creation of skating rinks, the refrigeration effect is also used in the presentation of blood plasma, in the low-temperature treatment of metals and in the liquefact...
ABSTRACT Security of life and property cannot be over emphasized. Human beings need privacy in their various homes and offices which necessitate the need for doors among another security services. To has been a major challenges for the people to have door of high quality and that are also durable at affordable prices by an average Nigerian. This project was done purposely to fabricate a metal panel door of high quality capable of giving maximum securities to life and properties at affordable...
ABSTRACT This project is on the design and fabrication of deep freezer for the preservation of items/products and making the items to cool. The project is able to develop a simple efficient economical and environmental friendly refrigeration system (A freezer) towards better technological advancement in Nigeria. This project modifies the existing refrigeration system with the use of R-600a which is ozone friendly, and non-contaminant like previous refrigerant of the hydrofluoric-carbon, HFC ...
ABSTRACT The iron the popcorn machine has to be the machine that is fabricated to produce a large and reasonable amount of popcorn with a limited cost and of fast rate it is economical as it is known to be for average Nigerians and also as an appetizer to meet the demand of the consumer, the invention of this machine at very economical rate, its source of heat is an electric burner, with a very moderate height and a detachable aluminum pot and container to collect the pop corn, the fabricatio...
TABLE OF CONTENTS Title page i Declaration ii Dedication �...
TABLE OF CONTENT Title page i Approval page ii Dedication �...
ABSTRACT Privacy and security are major essential human needs in various homes, offices e.t.c. Accessibility to adequate, durable, fashionable and affordable windows in our different buildings has been a problem to the society. Ability to have access to window of good quality and high durability of a price affordable to an average Nigerian has been a problem. This project here aims at production of a durable aluminium window. The aluminium window was subjected to different test, it ...
Abstract: Steel machining waste known as chips is a kind of waste that can be returned to the process of raw material for steel fabrication or else be traded as co-product of other industrial activities. The reuse of this product is of great importance owing to the economic and environmental aspects. This work investigates the effect of steel machining chips as additive on the properties of clay. The physical properties of the clay and steel machining chips composite were determined. The c...
This study evaluated the exergy analysis of the mechanical forced draft counter flow of the Port Harcourt Refinery cooling towers. The exergy analysis was carried out using the exergy destruction method. The results of the investigation and optimization show that the exergy destruction increases with the increases in mass flow rates of the cooling water, makeup water, and Air. Also, exergy destruction decreases with the decreases in Humidity Ratio, Heat sink Temperature, and Relative Humi...