DESIGN OF ALTERNATING AND DIRECT CURRENT FLUORESCENT TUBE -diploma electrical trade project
| Institution | BUTULA BOYS HIGH SCHOOL |
| Course | Diploma in electrica... |
| Year | 3rd Year |
| Semester | Unknown |
| Posted By | MAKORI KERECHA |
| File Type | docx |
| Pages | |
| File Size | 1.78 MB |
| Views | 2627 |
| Downloads | 0 |
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Description
ABSTRACT
An A.C and D.C fluorescent tube is useful for emergency blackout as it works on D.C as well, this saves the production process under lightings.
This project comprises A.C components as well as D.C components under improved conditions, this makes it useful in both urban and rural areas.
When A.C power is off user can supply it with D.C power to light the house or place as well
Although fluorescent lamp is a very efficient lighting device in daily life, still the high harmonic distortion and low power factor cause unnecessary energy consumption. In today’s environment demanding energy efficiency, it is important to reduce this energy loss by integrating an energy saving controller in the electromagnetic ballast of fluorescent lamps. The research presented in this thesis investigates the design and implementation of a new energy saving controller for electromagnetic fluorescent lamp network. The newly developed controller attempts to reduce power losses in both the electromagnetic ballasts and fluorescent lamps by regulating the incoming supply voltage to an optimum level. In addition, the new controller is able to adjust the illuminance level of working environment lightings under either dark or bright condition. Moreover, the function of the new controller is extended with time scheduling control capability, where the switching of lighting systems can be controlled at predetermined times based on occupancy schedule. Both simulation and practical results show that the implemented controller reduces energy consumption by at least 37.5%, by reducing the incoming supply voltage by 15%. In addition, it is desirable to have variable illuminance level control to decrease the energy losses. The experimental results show that the illuminance output level of electromagnetic ballast fluorescent lamps can be decreased by 50% using the new controller while maintaining unity power factor. Integration of the new energy saving controller into electromagnetic ballast fluorescent lamps impressively outperforms the existing electronic dimmable ballast. This new controller brings great ideas for energy saving in the use of fluorescent lamps.
Keyword: energy saving, illuminance level control, voltage control, electromagnetic ballast fluorescent lamps
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ABSTRACT
Clothing is a factor in every day human life and interactions with others. Clothing is a systematic means of transmitting information about the wearer. The purpose of this research is to understand the relationship of fashion designers ‘cultural values and personal experiences and the process of creativity in their design process. This study was designed to find out factors influencing the way they dress. The main objective in this study was to identify the physical,i) To produce simple and appropriate outfit. ii) To improve the branding image for fashion and design.iii) To look neat and well-groomed but relaxed iv) To promote recognition of the design. The research will be mainly in Nakuru town. I will involve various people in doing the research e.g. experts and designers. The casual wear will explain into further details hence the upcoming designers will also expand on their knowledge of designing other trending new styles. The clients will be informed of the latest trending designs and fashion
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Literature was reviewed on managing the modern form of a dinner dress and help designers to improve their effectiveness in the design fields.
Information to access the most and affordable dinner dress was gathered from the internet by googling also by using questionnaires in the research fields, market and schools.
Majority of the respondents from market places and boutiques observed that work related factors and financial constraints are the major causes of rejected designs on the new fashion trends and they can attribute to.
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ABSTRACT
Over the years the manual attendance system has been carried across most of educational institutions.To overcome the problem of manual attendance, now we are using a web based attendance management system, which can be implemented on any computer. This system is being developed to maintain easy access of information from the database. The application makes use of PHPMySQL HTML and CSS.It tracks all the details of a student attendance from day one to end of the course. The conventional method of takingattendance by calling names or signing is very time consuming, insecure and hence inefficient.
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