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Wireless power transmission advantages and disadvantages
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Imagine a situation where no electrical device has to be plugged into a wall. In this case, a laptop or cell phone can charge itself easily and seamlessly just by being placing inside a room. This is the ability of many experimental wireless power devices that will be adapted to domestic use in the future. Today, the prevailing methods of energy transfer are wires and batteries. Wired connections are perhaps the most common. With this energy transfer method, energy is delivered from a power plant to a home. In the case of batteries, energy is stored as chemical energy in the battery cell. Once it is needed, the chemical energy can be released as electrical energy. However, both these methods have flaws. Both suffer from mild inefficiency and inaccessibility. For example, resistance in wires and batteries cause some of the energy to be lost as unusable heat (Schlanger). Furthermore, there are some cases in which a wire or a battery cannot be used to power a remote device that is not accessible. With this in mind, it is pertinent to introduce a new method of power transfer called wireless power. There are currently two distinct methods of wireless energy transfer: radiative wireless power transfer and non-radiative wireless power transfer. Both methods have different advantages and disadvantages. Although radiative wireless power transfer has many applications in the scientific field, non-radiative energy transfer is considered to be more practical based on its impressive efficiency.
Radiative energy transfer is a reality that is implemented in everyday life and is an application of solar power. This method is called “radiative” because it requires the use of electromagnetic waves, which radiate in all directions. The general goal...
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One new alternative energy source that is not getting as much recognition as it should is piezoelectricity. The concept behind piezoelectricity will be examined at a greater length later on in this report. Basically the main concept behind piezoelectricity is compressing a piezo ceramic which will in turn produce a static voltage which we could
Hirsch, Sven, and Cornelia Daheim. "The Meaning Of Clean Electricity." World Future Review (World Future Society) 4.2 (2012): 96-101. Academic Search Complete. Web. 6 Feb. 2014.
Over the third quarter of physical science we have discussed heat, energy, electricity and magnetism. I have decided to do my paper over these four topics. If you have any questions please hold them till the end.
With the growing cost of fuel for cars and the rolling blackouts of last summer, the need for an alternative, cost-effective, environment friendly energy source is escalating. Many possible solutions have been presented, such as nuclear power, wind power, and hydrogen fuel cells; prevalent among these is solar power.
Serway, Raymond A, and Robert J Beichner. Physics: For Scientists and Engineers. United States of
Rotman, David. "Finding a Solar Solution." Technology Review 2 (2012): 48-51. Print. 22 November 2014.
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Today, solar power has become part of our daily lives. Appliances like solar notebooks, solar air-conditioners, solar cars, etc. demonstrate the use of the sustainable power of the sun. As the adverse effects of burning of fossil fuels and the depletion rate of non-renewable energy sources increase, the future of solar energy looks bright. The problem with renewable sources of energy is that they are not easily predictable in advance and vary based on both weather as well as site specific conditions.
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Solar power is one of the renewable energy resources that was develops to replace the fossil fuel. It was one of the most convenient and clean energy resources that are available in the earth. The solar power operations involve the conversion of sun power to electric power with the use of photovoltaic cell. The whole process is clean and will not produce pollutant to environment. In 2011, the International Energy Agency encourages all countries to develop solar power technologies. They emphasis that the early development investment cost should not be cut down and the research should be shared among the countries as solar power technologies brings huge global long terms benefits toward mankind. Such an advantages include: increase the countries energy security as solar power is a free and inexhaustible resources that can be obtain from the sun, reduce the pollutant toward the environments, and decrease the energy dependent toward fossil fuels which will lower the price of fossil fuel. These energy resources are the mos...
The wireless communication system is common in our daily life. We use our cell phones every day, but there are so many cables around us. Some people want a world without any wires and now ,their dream has come true. A new technology called wireless charging has been invented and becomes more and more widely used. However, although it is becoming more and more popular, there are still some problems behind it. There are many reasons why wireless charging should not be used now: it has some limitations, it is not efficient and it has some bad influences.
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The discipline of Electronic Engineering has involved itself greatly into today’s society. Every day, people use technology that was pioneered by those who have studied the science of electronic components and applied the engineering principles of electronics towards creating devices and technology that benefit society. The Institute of Electrical and Electronics Engineers (IEEE) is the largest professional organization dedicated to advancing technology for societies benefit. As students become Electronic Engineers, they will become involved with the IEEE during their careers and help in developing new and beneficial technologies. Such examples of this emerging technology include: the development of Motor Vehicle Event Data Recording systems for vehicle safety, improving standards of connectivity for wireless devices and networking, and researching possible alternative energy resources and solutions to promote energy conservation for the community.