2016
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Item Web Based Educational E-Support System for TVE department of IUT(IUT, TVE, 2016-11-20) Hossain, Md Riad; Rayhan, Abu; Hosain, MosaddekItem Travel and Tour System(IUT, TVE, 2016-11-20) Alamine, Aboubakar; KamalluddinItem Study of the comparison of the exergy and energy analyses of the 𝑪���𝑶���𝟐���/𝑵���𝑯���𝟑��� and 𝑪���𝑶���𝟐���/R134a cascade refrigeration system to be used in supermarkets(2016-11-20) Ismail, Motapon Njikam Ismail; Ali Sidi, Bashir; Ilyas, MuhammadVarious techniques are being researched to refrigerate our stored products at a desired temperatures in supermarkets. In this report, via the exergy and energy analyses, the 𝐶𝑂2/𝑁𝐻3 and 𝐶𝑂2/R134a cascade refrigeration systems were compared to determine which of the system suited best the supermarket application. The coefficient of performance (COP) was calculated as a measure of the energy analysis while on the other side the sum of the individual exergy destructions in each of the components which is equivalent to the total exergy destruction was a measure of the exergy analysis. The cascade refrigeration comprised of two refrigeration systems connected in series in which one of the system will in lower temperature circuit (LTC) while the other will be in the higher temperature circuit. The cooling space temperature and cooling capacity employed in this report were -40°C and 40 kW. In both the exergy and energy analyses the temperature at the LTC evaporator and condenser, cascade condenser temperature difference and HTC condenser were varied individually to obtain the desired results. The analyses result showed that 𝐶𝑂2/𝑁𝐻3 cascade refrigeration system was more efficient than the 𝐶𝑂2/R134a system as it had lower values for the total exergy destruction and higher COP values. Furthermore, in both cascade systems maximum exergy destruction occurred in the condenser followed by the compressor.Item Study of Renewable Energy Based On Solar Energy Cell(IUT, TVE, 2016-11-20) Ali Taqi, Mujibur Rahamna Mabkot; Mohamed, Abdirahman Jama; Al_Gohary, Jobran Mohammed AbdullahSolar photovoltaic (PV) energy is becoming an increasingly important part of the world’s renewable energy. In order for effective energy extraction from a solar PV system, this research investigates solar PV energy generation and conversion from devices to grid integration. First of all, this dissertation focuses on I–V and P–V characteristics of PV modules and arrays, especially under uneven shading conditions, and considers both the physics and electrical characteristics of a solar PV system in the model development. The dissertation examines how different by pass diode arrangements could affect maximum power extraction characteristics of a solar PV module or array. Secondly, in order to develop competent technology for efficient energy extraction from a solar PV system, this research investigates typical maximum power point tracking (MPPT) control strategies used in solar PV industry, and proposes an adaptive and close-loop MPPT strategy for fast and reliable extraction of solar PV power. The research focuses especially on how conventional and proposed MPPT methods behave under highly variable weather conditions in a digital control environment. A computational experiment system is developed by using Mat Lab Simulation Power Systems and Opal-RT (real-time) simulation technology for fast and accurate investigations of the maximum power extraction under high frequency switching conditions of power converters. A hardware experiment system is built to compare and validate the conventional and the proposed MPPT methods in a more practical condition. Advantages, disadvantages and properties of different MPPT techniques are studied, evaluated, and comparedItem Solar Battery Charger Circuit(IUT, TVE, 2016-11-20) Najibullah; Farhad; Srhan, MahmoudSolar concept is not new for us. As non-renewable energy sources are decreasing, usage of solar energy is increased. This solar energy is not only used on the Earth but also used in space stations where no electrical power is available. Solar energy begins with the sun. Solar panels, also known as photovoltaic, are used to convert light from the sun, which is composed of particles of energy called "photons", into electricity that can be used to power electrical loads. Light from the sun is a renewable energy resource that provides clean energy, produced by solar panels. Many people are familiar with so-called photovoltaic cells, or solar panels, found on things like spacecraft, rooftops, and handheld calculators. The cells are made of semiconductor materials like those found in computer chips. When sunlight hits the cells, it knocks electrons loose from their atoms. As the electrons flow through the cell, they generate electricity. Here is the simple circuit to charge 12V, 1.3Ah rechargeable Lead-acid battery from the solar panel. This solar charger has current and voltage regulation and also has over voltage cut off facilities. This circuit may also be used to charge any battery at constant voltage because output voltage is adjustableItem Room mapping and automatic vacuum cleaner robot(IUT, TVE, 2016-11-20) Habibullah, Md.; Hossain, Md.Sharif; Islam, Md.BulbulAs robots enter the human environment and come in contact with inexperienced users, they need to be able to interact with users in a multi-modal fashion keyboard and mouse is no longer acceptable as the only input modalities. Humans should be able to communicate with robots using methods as similar as possible to the concise, rich, and diverse means they use to communicate with one another. The framework is demonstrated by interactively controlling and programming a vacuum-cleaning robot. The demonstrations are used to exemplify the interactive programming and the plan recognition aspect of the research. The key contributions of this thesis are the introduction and implementation of the novel programming approach. It is expected to improve significantly the state-of-the-art in robot programming and interactive personal roboticsItem Online Schooling WebSite(IUT, TVE, 2016-11-20) Youssouf, Nadjim; Ahamada, Mohamed; Abdoulhaniyou, BouhdadiItem IUT Gate Pass Management System(IUT, TVE, 2016-11-20) Elmi, Mohamed Yusuf Mohamed; Zakariyau, IbrahimItem IUT FTP Server(IUT, TVE, 2016-11-20) Malloum, Mansour; Ahidjo, Abdoulaye; Abdulkarim, AbdullahiIn the early days, the management of such systems was not easy any dynamic due to lack of today’s technology; therefore, the implementation of this website has come with some enhancement to improve the earlier disadvantages. The main objectives or better still the aim objectives of this project is to make it easier and more secured for the users (Students and the Teachers) to access useful resources such as uploading folders and downloading them. All these thanks to the very powerful and innovative evolution of sophisticated Information Technologies as exemplified by rapid and dynamic growth of the Internet. Our website provides all common facilities that the typical online administration does; namely: a full-fledged interactive Digital Library in addition to the usual amenities that all websites provides such as Home page module and so on. Besides, another prominent feature of our website is an attractive gallery look implemented that looks aesthetically appealing to the users (Students, Teachers and the Admin). The system is web based which by the way provide the way for the students to get access to only the folders of their respective particular semester with many advantages. Other advantages are considered such as the availability of the system and flexibility for the users to be able to interact with the system at any time.Item Trafic Signal control using programmable logic controller (PLC)(IUT, TVE, 2016-11-20) Badjie, Ousman; Khalid, Osama; Mohammad Ali, OmairThe scope of this project is to present a proposal in the implementation of a traffic light control system based on Programmable Logic Controller (PLC) technology. In this method, the traffic density will be measured by counting the number of vehicles in each lane and which lane first detects the presents of a vehicle. In practical situations sensors are used to detect presence of vehicles in a lane and calculate the density and sends an interrupt signal to the control unit. In PLC the status of the sensors is checked and certain logical operations are performed to decide which lane is to be serviced first. Under low density condition it would operate sequentially. A Ladder diagram will be developing for the implementation of this in the PLC. As it is also difficult for a traffic police to monitor the whole scenario around the clock. So, this system can be implemented on highways, city traffic and intersection roads like 4-way 6 lanes etc.