Electromagnetic Suspension (EMS) system in which an array of magnets is attracted upwards to a steel rail. It is possible to design the magnets so that there is an upward force produced by magnetic attraction that cancels the downward gravitational force: the magnets are suspended in space! If steel beams were mounted on either side of a “guideway,” then a vehicle with magnets on both sides could move along the guideway and be supported and guided by the steel rails. (more…)
Electrodynamic Suspension (EDS) can be viewed as an array of magnets moving over a conducting sheet and being pushed upwards by ...
All electromagnetic suspension-based systems employ some type of feedback control mechanism to maintain stable levitation. (An inte ...
In contrast to electromagnetic suspension systems, electrodynamic suspension systems can provide stable suspension without a feedba ...
A propulsion alternative is to transfer power to the vehicle and then have a magnetic structure on the vehicle that can create ...
Wind energy alongside solar energy is one form of renewable energy and its supply is abundant in earth. Most people distinguish ...
There are literally thousands of uses for lasers. One of the largest applications is telecommunications—sending a signal through fiber optic cables, for example. This application grew rapidly in the 1990s with the phenomenal increase in traffic on the Internet. Optical data storage, such as on compact disks, CD-ROMs, and DVDs, is another important use for lasers. The information age was obviously a boon to this application, and as researchers obtained smaller wavelengths with diode lasers, they were able to fit more information on smaller storage devices. (more…)
Different lasers use different materials as the active medium. The medium can be either solid, liquid, or gas, and there are ad ...
The word “laser” is an acronym for “light amplification by the stimulated emission of radiation.” Lasers of all kinds consist o ...
The first known laser was made by Theodore Maiman at Hughes Research Laboratories in Malibu, California, in 1960, but the seeds ...
Several molecular systems have been constructed that mimic various aspects of photosynthesis. Two of these utilize molecular system ...
It is known that laser printers print faster, but swallow a large amount of energy, even if the printer is in the energy saving ...
The demand for electric energy by a community varies with the time of day and with the time of year. An electric power utility must be prepared to meet these demands. This poses an engineering problem because there is no practical method of storing electric energy on a scale that will meet the demands of a large community. To meet short-term increases in demand, electric utilities employ power generators that can be turned on and off on short notice. For example, they may use a gas turbine similar to a jet plane engine to drive a generator. Another scheme is to use a pumped storage hydroelectric system. Such a system does not rely on nature to replenish the water in a reservoir but rather uses electrically run pumps. Importantly, the system can generate electricity on short notice.
Water is forced to an elevated reservoir by a motor-driven turbine. The water in the reservoir has gravitational potential energy by virtue of the work done on it. When electricity is needed, the water is allowed to flow downward into the turbine that drives the magnetic generator motor, which now functions as an electric generator. The energy required to elevate the water is never completely recovered in the process. Nevertheless, the system is economical because the reservoir can be filled when electric energy demands and costs are low. It is also possible to have a system in which water flows from ground level to underground turboelectric perpetual generators. In this case, work has to be done to restore the water to ground level.
Taking into account losses due to evaporation of surface water exposure and energy unit conversion losses, it is estimates that approximately 70% to 85% of the electricity used to pump water into the elevated reservoir can be recovered. The technique is currently the most effective way to store large quantities of electrical energy in the form of energy operation, but the cost of capital and the presence of appropriate geography critical factors for the decision.
With energy management, well to pump storage hydroelectric systems for controlling the frequency of food production and security of reserve magnetic power generator. Thermal plants are much less able to responds in the sudden changes in electricity demand, the frequency and voltage to cause instability. Pumping stations, like other water plants can respond to changes within seconds to load with pumped storage hydroelectric system.
Water power sources is an interesting source of energy. It is available freely in nature. The constant flow of water can guaran ...
Magnetic power generator acted as a generator of free power because it generate electricity to power your home at free of cost to b ...
Magnetic generator motor supplies green and renewable energy. The energy created is very environmentally friendly and healthier for ...
Active solar hot water systems water are usable with air, liquid, vapor or liquid collector fluid or gas to liquid process. Hot ...
Hydropower, also known as hydroelectric power, is the use of water to produce power. Harnessing water to perform work has been ...
All electromagnetic suspension-based systems employ some type of feedback control mechanism to maintain stable levitation. (An interesting exception to the above rule, which has been demonstrated in the laboratory, consists of a permanent magnet suspended below a block of high-temperature superconducting material held below its critical temperature. Stable suspension results from a property of the superconducting state that immobilizes magnetic field lines in the superconducting material.) (more…)
In contrast to electromagnetic suspension systems, electrodynamic suspension systems can provide stable suspension without a feedba ...
Electromagnetic Suspension (EMS) system in which an array of magnets is attracted upwards to a steel rail. It is possible to de ...
A propulsion alternative is to transfer power to the vehicle and then have a magnetic structure on the vehicle that can create ...
Electrodynamic Suspension (EDS) can be viewed as an array of magnets moving over a conducting sheet and being pushed upwards by ...
High-speed maglev technology offers four main advantages: non-contact operation; low-mass vehicles (on a per seat basis, maglev veh ...
In contrast to electromagnetic suspension systems, electrodynamic suspension systems can provide stable suspension without a feedback system. Imagine a magnet held above a moving flat sheet of aluminum or copper. Following Ampere’s law of induction, an electric field is induced in the moving metal surface that causes eddy currents to flow in closed loops near its surface. The eddy currents in turn set up their own magnetic field, whose polarity, in accordance with Lenz’s law, opposes that of the magnet’s field. Consequently, the magnet is repelled from the moving metal surface, countering the force of gravity. If the magnet is pushed down toward the moving metal surface, the induced currents and the resultant repulsive force increase, restoring the equilibrium position automatically. Conversely, if the magnet is moved upward, the levitating force decreases. (more…)
All electromagnetic suspension-based systems employ some type of feedback control mechanism to maintain stable levitation. (An inte ...
Electromagnetic Suspension (EMS) system in which an array of magnets is attracted upwards to a steel rail. It is possible to de ...
Electrodynamic Suspension (EDS) can be viewed as an array of magnets moving over a conducting sheet and being pushed upwards by ...
A propulsion alternative is to transfer power to the vehicle and then have a magnetic structure on the vehicle that can create ...
The next time you hear an airplane flying overhead, look up, and pause for a moment. What you see is a machine that is heavier than ...
Designers in China have launched the first wind turbine levitating in the world of permanent magnetic levitation (Maglev) in the Wind Power Asia Exhibition 2006.
Considered a key step in the evolution of global wind power technology and a notable advance in independent intellectual property rights in China. The generator was jointly developed by the Institute of Energy Research of Guangzhou in the Chinese Academy of Sciences and Guangzhou Hengyuan Energy Science & Zhongke Technology Co., Ltd. (more…)
Renewable energy generators are devices that convert energy from its original form in the renewable energy source into electric ...
In 2001, there were 14,000 small wind turbines for home/domestic use in the United States. The market potential for national an ...
Wind is a natural and inexhaustible source of energy, wind does not have to be imported or mined from deep down the earth. Wind ...
The wind power potentially could produce 40 times more electricity than worldwide energy consumption annually, according to res ...
Germany is considered a world leader in wind energy deployment, with electricity production from wind having gone up more than eigh ...
Based on estimates of the U.S. Department of Energy, the energy used in homes accounts for 20% of all the energy consumption in the United States. The ability to control the indoor temperature is one of the most important achievements of modern technology. (more…)
Want state of the art LED lighting for your home? If so then this article will help to teach you about the many benefits to be gain ...
Take a look at the following energy saving ideas and new green products and see how many you can use to save your hard earned c ...
These days we have two main concerns in the world of business and finance. First the greenhouse global warming and second the finan ...
Nowadays, a lot more people are increasingly aware of the amount of energy they consumed everyday and what effect it was having ...
It is a reasonable and sensible action to tighten our belts and cut spending as living cost are climbing nowadays. We have to m ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterprises, and electric power generators. Only a portion of total energy demand is sensitive to temperature changes. (more…)
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summ ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United St ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...
Climatologists generally agree that there is accumulating evidence that a warming trend has been occurring since the mid-1960s. The ...
Power consumption from electricity is an essential element of the U.S. economy since the beginning of the century. Coal power plants, a power source of electricity are available to deliver large quantities of low cost and reliable power supply. It has become more important than the supply of petroleum and natural gas, as the latter supply is decreasing over the time. In 1995, the burning of coal produces about 55% of the electricity produced in the U.S. We also know that coal reserves are expected to last for centuries at current use. (more…)
The wind has covered every Sunday morning more than 50 percent of electricity & energy demand. It has also achieved the record high ...
The largest use of coal today is in the generation of electric power by electric utilities. According to the U.S. Energy Inform ...
Wind energy comes from the mismatched heating system of the planet that runs all day and night, heated and cooled by the sun. T ...
Magnetic power generator acted as a generator of free power because it generate electricity to power your home at free of cost to b ...
Natural gas and oil are common source energy used to give electricity. How efficient is coal if we compare to these other source of ...
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Although the automotive industry is a vigorous sponsor of research and development in vehicle efficiency technology—worldwide, nearly $20 billion U.S. worth in 1997—governments throughout the world sponsor additional automotive R&D, both separately from and in partnership with the industry. This work focuses primarily on four areas: emissions reduction, safety, fuels, and fuel economy. Within the past few years, government sponsorship of automotive R&D has moved sharply in the direction of attempting to advance the performance and cost-effectiveness of automotive fuel cells vehicles, which address three of the four areas: emissions, fuels, and fuel economy. (more…)
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that ...
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient v ...
Both state and federal funding is available for research and development of Plug-In Hybrid Electric Vehicle (PHEVs) and other alter ...
The primary electric drivetrain components for fuel cell vehicles are the same as those for any electric vehicle: traction motors, ...
There are different types of vehicle propulsion systems and the transportation fuels that have been studied for their potential ...