Concentrating Solar Power Systems
November 18, 2009 by Go Green Tips · Leave a Comment
If you have ever seen a field with several mirrors pointing toward the sun you may be looking at a solar power system. These systems work to concentrate the sunlight to one area and use the heat to heat up the liquid that flows along the pipes. This system is called Parabolic-trough system. This type of system heats oil that is flowing through the pipe. The oil is hot and that is why it is used to boil water to power a steam generator which in turns powers electricity.
The reason that this system works so well is because the U-shaped mirrors attracts and collects the suns heat which is then transferred onto the receiver. The receiver absorbs the heat and transfers into fluid which helps to power the engine. The heat causes the fluid to swell up against the piston and that produces mechanical power. This type of power can be used to run things like generators or even an alternator that will produce electricity. This system works great when because it uses molten salt that flows through the receiver. When the salt heats up it can generate electricity through the steam generator. The salt holds in the heat for several days before it has to be converted into electricity. Because this system uses so many panels it is mainly used for industrial solar power where acres of land can be donated to the Parabolic Trough. There can be enough power in the network that can create energy for several days or more. Because this system is so large that it allows the heat that it saves to be transferred days later.
Through this project and other solar power projects we can understand fully how solar power works. When we see how much solar power is conserved using these U shaped mirrors we can also understand how much energy is lost. Using concentrating solar power systems are beneficial to the businesses that use them because they won’t have so much time down when the power fails. Machinery is their only major concern and as long as their machines are taken care of there should be no problems. Industrial type of solar power can attract and trap a lot of heat from the sun during the day, especially using mirrors that will reflect the sunlight. It also helps to have this type of solar power out in an open field free of trees and vegetation that may grow around and at some point crowd the solar light out.
Scientist are continuously studying this theory as businesses use it to power their machinery. Steam power was what was used from the beginning with solar power and is still what most systems depend on to service their production needs. In the future, fields may eventually be full of mirrors that somewhat point up to the sky in hopes of generating enough sunlight to heat the world. Until then we will use the traditional methods of heating water, heating our homes and powering our electricity.
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Advanced Vehicles
November 17, 2009 by Go Green Tips · Leave a Comment
When we think of advanced vehicles it reminds us of speed that a vehicle has and all the newer vehicles that are coming out with all the modern gadgets and gizmos. Every time we turn the ignition on our vehicle we are sending a bad sign out into the world and the atmosphere. Scientist have worked rather hard at coming up with a way that our cars can be safe for our planet. So how is that done?
Advanced fuel systems include energy storage which is the batteries that help power it instead of the fuels, power electronics, thermal comfort and systems analysis. These fuel systems are constantly being studied and have made outstanding research and development topics. The main focus on the fuel systems in advanced vehicles is to find an alternative fuel in order to cut down on pollution and to restore our economy. We cannot continue buying fuels forever. We need an alternative to fuel. Sometime in the future, fuel will no longer be available for us to use. Advanced vehicles are designed to make it more efficient to run at top speeds. Convenience is another advantage to the advanced vehicles.
They plug in and charge instead of running out of fuel and refilling the tank. Running these cars may not break any records but it can help tremendously knowing that they are running clean. Ultracapacitors are designed to provide additional power to accelerate for climbing hills. Vehicle power electronics controls the amount of electricity through the devices. This may be the ignition, DC to DC converters, inverters, and motor controllers.
Vehicle Thermal comfort is how you control your temperature inside the car. You may have to roll the windows down or put them up. Turn the heat on or the air conditioning on. No matter what you have to do this is thermal comfort. The main goal for such an invention is to come up with a vehicle that can get us where we need to go in the amount of time that we allow ourselves. In the fast paced world that we live in today, it is hard to find someone who has the time to spend waiting on their vehicles to get repaired or refueled. That is because we need that vehicle to be up and running when we need it the most. Scientist are studying the car factor and what it will do for us in the future and what it has done for us in the past. As they strive to gather more information they can better the way the advanced vehicles have made it through.
Advanced vehicles are on the go and will one day be the car that we decide to buy because that may be our only choice in the future. When the fuels run dry we will no longer be able to drive what we currently have now. Though these vehicles do allow some restriction, that will no longer be as we progress into the future and all the bugs will be worked out.
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Dams - A Source Of Sustainable Power
November 5, 2009 by Go Green Tips · Leave a Comment
Dams have been around for a century now. Beavers used it, although not for energy and now humans employ it as source for that ingredient in survival: power.
Hydroelectricity
Hydropower generates hydroelectricity. It produces power with the help of gravity. It is the most common alternate source of energy. After the dam (called the hydroelectric complex) is built the complex it produces no waste whatsoever. Hydroelectric power comes from waters potential energy.
Imagine a glass bubble, and you’re in it. When the walls crack water exerts pressure on that one whole until water comes through that tiny gap. It’s the same thing with a dam. The engineers collect the dam’s power by harnessing it with the use of a turbine which then connected to a generator. In this matter the power extracted from the rushing water depends on the amount of force the water exerts on the turbine and on the difference of the water’s average gravitational pull. The difference between the height and the outflow is called the head
The amount of the water’s potential energy depends on how high the dam is from its outflow. Dams help cities by supplying energy during extremely high demand times and during off peak the turbines pump water into higher reservoirs so that when electricity consumption is high again.
Where Is The Power Supplied
Most hydroelectric power plants supply public entities; there are some which are funded by industrial companies for their specific use. Such industries like aluminum electrolytic plants build there own hydroelectric power plants due to their high energy consumption. In fact the world’s largest dam the Coulee Dam, located in Bellingham Washington was switched to support Alcoa Aluminum plant, which at the time was the largest supplier of materials for war planes; afterwards though it was used for public electricity and as a source for irrigation.
There are also small scale hydroelectric power plants, most of them are located in north America. A plant is classified as small scale when it only produces 10- 30 megawatts. These power sources are usually connected to power grids to supply energy to small isolated communities or even to a single family home. In China small hydro schemes are very popular due to a high number of factories wishing to have their own supply of electricity.
Other Common Water Energy Sources
Other common hydro resources are rivers, the ocean, waterfalls and even ponds or lakes. Rivers power plants where in no reservoir can be built are called run-of-the-river-, while the ocean is put into good use because of the tides. A tidal power plant harnesses the energy of the coming and the going of the tides. Uncommon but never the less employed are kinetic energy water plants.
Why It Makes Sense
Economically the use of hydropower is cost effective because our primary source the fossil fuel is expensive and slowly getting used up. Water is of the abundance and most of the time it is free. Granted that dams and other hydroelectric power plants are quite expensive to build, but the pros far out weigh the cons. The operating and maintenance cost of a hydroplant is considerably cheaper than looking for fossil fuel, drilling for it, and refining it to become oil. What’s more a hydroelectric power plant cannot be affected and is not subject to the rise and fall of fuel prices.
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