INTRODUCTION The most common type of heat exchanger used in industry contains a number of parallel tubes enclosed in a shell and is thus called a shell and tube heat exchanger. These heat exchangers are employed when a process required large quantities of fluid to be heated or cooled. Due to their compact design, these heat exchangers contain a large amount of heat transfer area and also provide a high degree of heat transfer efficiency. Over the years, many different types of shell and ...
ABSTRACT With the trend of technology growth in the world of today, virtually every facet of human work has been affected; even the remotest of it all, and the production circle cannot be left out. This study was carried out to verify all the manual processes involved in bill-of-material processing system and to seek a way of automating the system for effective operations. Since there is continuous moves towards technological advances that enhanced productivity of labour and free human bein...
INTRODUCTION Production is the transformation of one set of resources into a second set. In order to describe the constraints and opportunities for production, different methods have been developed through the years both in the practical engineering context and from an academic point of view (Grubbström, 1995). For the multi-level, multi-stage production-inventory system, an analysis applying the combined methodology of input-output analysis and the place transform has proven to be useful. ...
Abstract Power failure or outage in general does not promote development to public and private sector. The investors do not feel secure to come into a country with constant or frequent power failure. These limit the development of industries. In addition there are processes that cannot be interrupted because of their importance, for instance surgery operation in hospitals, transfer of money between banks and lots more. This paper presents the design and construction of an automatic power chan...
The purpose of embarking on this study was to provide a well-detailed account on the impact of digitization of the Broadcasting Media in Nigeria. The study ascertained the level of media digitization in Nigerian Television Authority, Enugu (NTA) in this Era of ICT and internet operations. The researcher used survey research design to enable her determine the sample size which is 150 through the appropriate statistical method to represent the population of the study. Survey Research Method was...
In recent times, the pivotal role played by Small and Medium-scale Enterprises (SMEs) in Ghana cannot be overemphasized. They are frequently credited with engineering the socio-economic development through employment creation and poverty alleviation. Hitherto, these enterprises faced avoidable challenges caused by poor information management coupled with non-compliance with information communication technological (ICT) innovations. The general perception is that owners as well as managers of ...
ABSTRACT In making a choice of solar Photovoltaic or diesel generator system as an alternative for power generation, life cycle costs (LCC) analysis are considered to be potentially important to such a decision. It incorporates all costs arising from owning, operating, maintaining and ultimately disposing of a project. In this study, a software computer program is developed to determine life cycle cost of solar Photovoltaic and diesel generator systems in Nigeria. The software is developed th...
ABSTRACT Computers have been in existence for some time. Personal computers have emerged in the early eighties and changed substantially the way corporations perform their functions. Large quantity of application software, tools making the computer more useful, have been developed over the years. Different classes that describe application software, such as "Spreadsheets", "Word Processors" and "Data Bases", are now as much a part of our vocabulary as "fax" and "cellular phone" machines. A...
ABSTRACT A Printed Circuit Board (PCB) Mill is a device that etches out a pattern on a copper clad board such that it makes a PCB. PCBs are used everywhere in the field of electrical engineering to connect electrical components to one another. This research presents the design and implementation of low-cost mini PCB commuter numerical control machine based on microcontroller. A stepper motors were used to compile the movement of the three axes coordinates. Moreover, the generated Gerber file...
Abstract This Study Examined The Effects Of Effluent Discharges From Various Point-Loads On A Purposively Selected Receiving River, The Self-Recovery Ability Of The River And The Treatability Of Both The Discharges And The Receiving Stream In A Heavily Industrialized Community. The Work Involved Field Survey Of Industries Producing And Discharging Effluents In The Study Area (Ado Odo/ Otta Industrial Zone Of Ogun State, Nigeria); Determination Of The Effluents‘ Physico – Chemical, Biolog...
Abstract Diabetes mellitus, also known as diabetes has on major effect on its patients. This is the effect of impaired wound healing. Patients thus get minor wounds such as small cuts which become non-healing and are liable to get infected. Severe cases of such occasions lead to amputations. A solution to this problem is tissue regeneration with the help of scaffolds. These scaffolds are made of biopolymers and promote cell adhesion, regeneration and minimal diffusional constraints. Computer ...
Geophysical investigation involving the electrical resistivity method was carried out at a site earmarked for construction of a Lecture Theatre at the Obafemi Awolowo University Teaching Hospital Complex (OAUTHC) in Ile-Ife, Osun State Nigeria. The aim was to generate 2-D subsurface images beneath the site which will provide the required geological information for location and design of the building foundation. The geophysical investigation involved the 2-D imaging technique which utilized ...