Department of Mechanical Engineering
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Item Vacuum Assisted Resin Transfer Molding Technology(University of Management & Technology, 2018) Ali, Azam; Sadullah Baig, Mirza; Riaz, DanishThe composite materials are widely using in place of conventional materials due to its particular properties. There are a number of methods to manufacture composite material products but Vacuum Assisted Resin Transfer Molding (VARTM) technology has many advantages over RTM. It is a cost effective molding method especially using for long sheets. Our aim is to make an understanding and feasibility of this technology. Our aim is to manufacture a composite material sheet by using VARTM technology. And after that to make an understanding of VARTM for complex geometry. This is not an easy task because finishing of sheet is not easy to achieve without upper part of mold. Flow of resin effects the finishing of the part. If flow is inappropriate then voids can be produce. Flow timing is an important factor when it will slow or fast it results a defective part. Incomplete impregnation of resin will cause dry spots in the manufactured part. Distribution media places on the top of the fiber to accelerate the resin flow. So, porosity, permeability and thickness of distribution media and fiber or reinforcement are also important factors. Another challenge is to design VARTM process. Inlets for resin impregnation is an important factor that how many inlets should be for proper impregnation and where these inlets should be introduced to the mold. Leakage of vacuum bag is another challenge so proper sealing of system is required. Vacuum timing is also notable factor. Pressure and temperature of resin to introduce into the mold is also part of design challenges which we will achieve. Finishing of the final part including less voids, better surface finishing, precise and dimensions is the main aim of our project which we will achieve.Item Designing, Analysis & Fabrication for Prototype of Highway Wind Turbine(University of Management and Technology, 2018) Ali Rehman; Ammar Aftab; Fahad Bin Qamar; Muazam IqbalWorldwide dependence on “GREEN ENERGY” can comprehensively be impacted by Vertical Axis Wind Turbines (VAWTs) as they possess huge prospective to contribute towards ever growing demand of green energy. For sustainable contribution of VAWTs, these turbines should be made utilizable outside their conventional farmland environments. This project features goal to utilize the power of urban environment to produce energy using VAWTs effectively and efficiently. The main purpose of this project is to design a wind turbine to utilize wind energy from atmosphere and vehicles on the highway. The turbine will be placed along medians of highways and sides of highways and effective circumstances will be considered in this report. The turbine will be designed under modern engineering standards and is given modern and effectively smart design. They also can be installed on parks, roads, public facilities or other amenities. The proposed Helix wind turbine for highways are designed to produce power up to 100 watts depending upon conditions. The power generated through turbine can be used to provide electricity to streetlights along the highways and for miscellaneous use.