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AUTOMATIC 12V PORTABLE BATTERY CHARGER - ELECTRICAL POWER OPTION
| Institution | Kisii National Polytechnic |
| Course | Electrical and elect... |
| Year | 3rd Year |
| Semester | Unknown |
| Posted By | MAKORI KERECHA |
| File Type | docx |
| Pages | |
| File Size | 1.68 MB |
| Views | 1879 |
| Downloads | 0 |
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Description
The essential use of 12V lead acid batteries in automobile engines to power incorporated electrical appliances, and also the sudden failure of vehicle charging systems that often give rise to a drain of battery cells has necessitated the construction of battery chargers suitable for fully restoring the lost charge into the required 12V battery cells. Most 12V battery charging devices built for commercial services are usually heavy and bulky and lack a protection circuit and a sensitized control circuit required for automatic deactivation of charging once the battery is fully charged. In this new design product, the size of the battery charger was made portable and light in weight to enable end users to convey it as easily as possible. Short circuits and current reverse protection were incorporated as well. A sensitized control circuit was implemented to ensure that charging is terminated immediately when the battery is fully charged. This is to avoid the possible occurrence of overcharging that may result in loss of electrolytes.
In this report the components used to actualize the design work were listed and the design specifications were tabulated with the circuit diagram well detailed. The operational principle of the built charger clearly explains how the design objectives were reached. An adopted formula with example on how to calculate the charging time of a battery when using the product was derived. Design limitations, recommendations, and conclusion were stated. Various relevant tests were conducted with its corresponding results tabulated. Finally, a well labeled image which lays out views of the completely constructed battery charger is attached in order to appreciate the effort and the value of the design work.
(Keywords: AC power supply, rectification, charging, deactivation, full charge)
Considering, the compact shape of the battery charger, with very low ventilation an extractor fan was incorporated to drive away hot air and moisture that would be generated inside the charger compartment during operation.
Below is the document preview.
DESIGN OF REINFORCED RETAINING WALL PROJECT REPORT
To achieve the objective of this study as stated earlier, the visit companies and offices in order to get the data which will help me to get better result and produce a good report of my research project. This work will be arranged in this way,
Step1; to deal with descriptive study and documenting which show how kabaya terrain is look like and carrying survey and site investigation.
Step2; to produce descriptive study showing drawing based on data will be obtaining
Step2; to assess cost estimation by using appropriate concept
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STRUCTURAL AND ARCHITECTURAL DESIGN OF FOUR STOREY MULTI-SHOPPING COMMERCIAL BLOCK PROJECT REPORT
This project entitled “Structural design of four-story multi-shopping commercial block in Kisii Town”. The objective the research was to conduct a technical detail and study on the implementation of Structure design of proposed four story commercial building in Kisii Town in order to solve the problems of our country to fit in vision of land use. Therefore, conducting this research project could be a sustainable solution to the above-mentioned problems. During this research, the analysis of structural elements was made by combining manual analysis, ArchiCAD 18 & Atlantis software for providing architectural plans, arcGIS software for creating and using maps, compiling geographic data, analyzing mapped information, dynamic cone penetration test for determining allowable bearing capacity of the soil, PROKON software for analyzing and designing of structures. The architectural drawings, analysis and the design of all elements of structure, cross sections and reinforcements were calculated. The study revealed that building dimensions are (21.30m*25.60m) and the minimum requirements steel bar in slab at the top four steel bars of ten diameters (4Ø10mm/m), bottom three steel bars of eight diameters (3Ø8mm/m). Beam at top four steel bar of twenty five diameters (4Ø25mm), bottom (4Ø20mm). For the column ground floor (8Ø25mm), first floor (8Ø20mm), second floor (8Ø14mm) and last (4Ø12mm), stairs (4 Ø 12), foundation (5Ø16mm)
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4.11 MB
STRUCTURAL DESIGN OF MORDERN THREE STOREY HOUSE WITH ROOFTOP TERRACE PROJECT REPORT
This work explores the complexities and challenges of designing a three-storey modern house in Kisii Town, Kisii County. In response to rapid urbanization and the essential role of housing in Kisii County(World Bank, 2018;UN-Habitat 2018), there is an increasing demand for modern, sustainable, and community-oriented residential spaces. This study was conducted to help meet the need for modern housing in Kisii County, as the County faces many challenges in providing adequate and sustainable homes.
The project explains the design and modelling of a G+2, three-storey modern house using Autodesk Robot Structural Analysis Professional 2024(Autodesk 2023), as it provides a clear vision through design, construction, and documentation. With the advancement of technology, the use of software to solve numerous problems in every technical discipline problems that formerly took a long time has become quite common. As a result, the use of software technology in civil engineering to analyze, design, and predict the behavior of structures before their lifespan has increased dramatically over the last decade(Kasthurirangan, 2021).
The research focused on designing a modern house with a rooftop terrace, taking into account practical use, visual appeal, safety, and economic viability. Archi CAD 28(Graphisoft, 2023) and Lumion 10(Act-3D, 2020) software were used for producing the architectural design, while Robot Structural Professional was employed for structural design and analysis, following the British Code as the design standar
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4.84 MB
STRUCTURAL AND ARCHITECTURAL DESIGN OF TWO COMMERCIAL BUILDING BLOCK PROJECT REPORT
This is a project for construction of two storey commercial building block. This project work “structural design of G+2 commercial building at Nyamache Sub County_ Kisii County sector is a part of fulfillment of advanced diploma as awarded of Kisii National polytechnic (KNP). It contains with conception, structural design which provides proper communication to all of users, this project gives more information about the design and analysis of commercial building. The final project report contains five chapters that are: General Introduction, Literature review, research methodology, system design, analysis and implementation and then Conclusion and Recommendation.
This project report also has been compiled referred to books of different authors and by using equation provided in codes of practice like; British standard used in design of the commercial building. The analysis of each structure members starts with evaluation of all loads that are expected to be carried by structure including self-weight. The structure design of this project detail, beam, slab, stair, column, and foundation by BS8110.
Based on result, the detailed plans of this.
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2.37 MB