Introduction: In this project, we going to see the polymers use in Exterior trim in Automotive, discuss the advantages and disadvantages, and see some examples on polymer used in Exterior trim but first What is the Exterior trim? It is any part use on the outside body of the car to protect other parts or just to add aesthetic look on the car like bumpers, car tyers and door handles...….etc. The figure below show some exterior part made of plastic: (Plastic still has a poor image even today
since ancient times. As explained by Nersesian (2010), people have used hot springs for cooking, heating buildings and medicinal purposes such as treating eye and skin diseases. There are three types of geothermal power plants: flash steam plants, dry steam plants and binary cycle power plants (U.S. Energy Information Administration [EIA], 2015). The most commonly used is the flash steam plant. High-pressure hot water separates into steam and water following a drop in pressure as it rises from the
It is very important not to let surface of the refractory dry out or it may skin over and trap moisture inside. When this liner is fired it is very likely to crack. Depending upon our needs there are different types of crucible furnaces. They are classified according to the source of heat they use. Some of them are are discussed below in detail: • CHARCOAL CRUCIBLE FURNACE Charcoal fired crucible furnaces have been used
Solar thermal systems store heat from the sun that can be used for a variety of purposes through active and passive systems (Lewis & Nocera, 2006). The main advantages of solar energy are that it is clean, able to operate independently or in conjunction with traditional energy sources, and is remarkably renewable (Lewis & Nocera, 2006). The main disadvantages are that it is currently more expensive than traditional energy, and the availability
and additional insulation materials can be placed in spaces between framing members without increasing wall, ceiling, roof or floor thickness. Timber also maximizes the efficiency of insulation materials because the wood never gets cold or dissipates heat, therefore less energy is required to maintain warmth in a building. Timber building materials create low waste on site and have low volatile chemical emissions during their manufacture. (Institute of Foresters of Australia, PO Box 7002, Yarralumla
be working in sweatshops. It then becomes a problem to decide whether sweatshops should end or if they should keep going. People hate the idea of sweatshops and others would dream of having a factory job. It's crucial to be aware of the disadvantages and advantages sweatshops have. Sweatshops caught my attention because I never wondered how knockoffs were produced, who made them, and how it happened. I’m sure I’m not the only one who hasn't stopped to think what it takes for fakes to manufacture.
isomers present in it. Hexane has about the best characteristics of the many solvents tried over the years. With a boiling point of 69˚C it is a liquid in all but the most extreme climates of the world. With a fairly high volatility and a low sensible heat of 335 kJ/kg it is relatively easy to remove from the solids and oil with low energy use. It has an azeotrope, a slightly reduced 61.6˚C boiling temperature when in the presence of water or steam and resulting in a vapor coming off at about 95% by