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Benefits of solar energy essay
Benefits of solar energy essay
Benefits of solar energy essay
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The aim of the project is to design a scooter with renewable solar energy. Solar Bike aims to be a small research and development business that develops renewable technology and helps everyone start riding electric bicycles around rather than using their cars. We firmly believe that using solar powered bicycles is one of the best methods of reducing our dependence on fossil fuels and minimizing environmental damage caused by carbon dioxide emissions.
A solar panel is a flat rectangular shaped device, typically somewhere between the size of a radiator and the size of a door, made up of many individual photovoltaic energy collectors called solar cells covered with a sheet of glass on its surface. The cells, each of which is about the size of a palm of an adult, are usually octagonal in shape and colored bluish black. Similar to the cells in a battery, the cells inside a solar panel are designed to generate electricity; but where a battery's cells make electricity from chemicals, a solar panel's cells produce power by capturing sunlight instead. They are sometimes called photovoltaic cells because they use sunlight ("photo" comes from the Greek word for light) to make electricity (the word "voltaic" is a reference to electricity pioneer Alessandro Volta).
In this project we are going to use solar panel and DC hub motor. The voltage generated by the solar panel is stored in battery (48V/20AH) through charging circuit. From the battery, power will be supplied to the DC hub motor (48V/200W) through accelerator followed by gate switch. The purpose of gate switch is when break is applied then automatically it opens the connection between motor and accelerometer.
The wheel hub motor is an electric motor that is incorporated into the hub of...
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...verter.
The electricity generated by the solar cell panel is stored during the day with the help of storage batteries which give us only DC i.e, Direct Current. But in order to operate our devices we need alternating current. Therefore we need to initiate the conversion from convert before using any appliance using inverter.
Periodic Monitoring and Maintenance is required.
A drastic environmental change cannot be tolerated by the equipment.
The entire process of manufacture is still very expensive as silver is used for interconnection of these cells in the solar panel, which is a very expensive metal.
A practical problem linked with the use of solar cell panels is regarding the storage of electricity general by them.
The conversion of DC to AC uses inverter before using any appliance and thus it increases the cost of such solar panels as the sources of electricity.
Energy storage is a means of storing energy for future use and can be accessed when needed. Storage can also make the power more solid or resilient so that it can be managed easier. According to Lockheed Martin “The GridStar Lithium-ion system can help customers reduce electric bills, help utilities defer costly transmission and distribution infrastructure upgrades, and enable the integration of behind-the-meter customer renewable electricity production” (Corporation,
Solar energy is energy taken from the light that reaches earth's surface from the sun. There are four different kinds of solar energy, which are active solar systems, passive solar systems, photovoltaic cells and concentrating power systems. An active solar systems is a system that captures solar energy by mechanical means. Common active solar systems are often in buildings or homes. Some examples are roof collectors and water heating. Low Intensity and high variability have limited the use of active solar energy in Canada. A pass...
Preview: Today I will discuss the potential that solar power has to become this country’s main supply of energy and the latest research that can make solar power more efficient and cost effective. I will also present the environmental benefits that come with using solar power over other and more harmful forms of energy.
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.
Solar systems, also known as solar panels, are built to be very efficient and require very little maintenance. Technology has helped to improve the look and construction of the solar panels. The solar systems that are built and installed today have to meet very strict guidelines. “Stringent quality control in the Modern Solar supply chain ensures the quality of solar product installed on your roof is reliable, durable, and of the highest quality standards.” (“Solar Energy Benefits”). These panels are built using “monocrystalline cells that are held together with solder. They are surrounded by a hard, glass cover, polymer EVA sheet and a sp...
The bicycle powered generator represents a climax of the engineering education. The results far exceed our expectations with a power source that could provide ample amounts of energy. The bicycle generator is capable of outputting about 1000 watts hour a day. Some design improvements for future production would include overcharging prevention in the charging of the appliance, i.e. controlling the amount of power induced during the mechanical process. Depending on the need of the power, the overall design could be changed to handle varying loads much more effectively, in the future.
forms of solar cells made from different materials and in different ways are able to increase the
Explain, using diagrams, armature reaction in a dc motor, the effects it has on the motor and methods to reduce it.
Two people who believe this are reporters at the Breit Bart News Network. Julian Morris and Victor Nava believe that, “‘Green’ energy subsidies benefit the politically connected while harming future generations as hundreds of millions of dollars are added to the country’s debt burden with each green failure.” In a way Morris and Nava are correct. According to Mathias Aarre Maehlum, “Residential solar systems are typically sized from 3 to 8kW and end up costing between $15,000 and $40,000.” This can add up to become very expensive when implementing solar energy throughout the country. However, with the advancements in technology growing every year the cost will decrease over time. The cost of implementation can in fact go down as well through the use of community solar gardens. This helps the homes that are shaded and cannot absorbs the Sun’s energy. The energy from the community solar gardens are shared through out those homes. Switching to solar energy can also save money over time. Rhone Resch, president of the Solar Energy Industries Association confirms this. Resch says, “Today, the solar industry employs nearly 175,000 Americans and pumps more than $15 billion a year into the U.S. economy – and we’re just scratching the surface of our enormous potential” (qtd. in
Photovoltaic (PV) comes from the two words photons and voltage, which translate into light and electricity (National Renewable Energy Laboratory, 2014.). PVs are cells that are able to absorb light from the sun and convert it into usable electricity. Specifically, PVs absorb radiation coming from the sun or the energy emitted from the sun
According to Mr. Solar.com, “this type of energy production, known as the Photovoltaic Effect, is achieved by solar panels converting sunlight into energy. Solar panels are made up of several individual solar cells, composed of layers of silicon, phosphorous (which provides the negative charge), and boron (which provides the positive charge). Solar panels absorb the sunlight’s photons and by doing so initiate an electric current, producing electrons. The resulting energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their atomic orbits and released into an electric field generated by the solar cells, which then pull these free electrons into a DC or directional current.” This electricity then proceeds to a mechanical room beneath our house to a charge controller, which regulates the amount of energy sent to our 24V batteries to be stored.
Systems which employed for motion control are called as Drives. Drives employ any of the prime movers for deliverying mechanical energy for motion control like Diesel engines, steam turbines and electric motors. Drives which employ electric motors are called as Electrical Drives. Basically Drive is a combination of various systems combined together for the purpose of motion control. Electrical drives are available with vast range of torque, speed and potential. Can employed electric braking due to which they are having malleable star control components. Previously, Induction and contemporary motors were employed mainly in constant speed drives. DC motor used by variable speed drives uses dc motor.The DC motor drive is used in many industries for the conversion of electrical energy into mechanical energy. One of the main reasons for choosing DC motors is the simplicity of their speed control.Now AC motors can also be used in variable speed drives which uses semiconductor converters.
I am certain that all have heard of the terms greenhouse gases, fossil fuels, and global warming. Have you ever questioned what will happen if nothing is done about the environmental problems facing the world today? What if I answer you that, we can merely use the power from the sun to power up our entire planet without the use of harmful energy sources, which affect our atmosphere? The power from the sun is what we call solar power. Solar power is the energy that comes from the sun as light and heat energy, and then it is later converted into electrical energy through solar panels (Nelson, 2008).
The Earth captures around 342 W/m2 of energy from the sun. This energy is in the form of solar radiation, which the atmosphere reflects about 77 W/m2 and will absorb around 68 W/m2 of solar radiation annually. Therefore, the Earth’s surface is receiving, on average, about 197 W/m2 of solar radiation annually. This amount of energy received is roughly more than 10,000 times the amount of all energy humans consume per year. This energy can be used to produce electricity or heat. This energy source is not being used to it’s potential considering how much effort would come into effect to store and transport this energy.
First of all, solar energy is the energy produced when the sun heats the solar panel. Thus, when the sun heats the panels, it produces electricity. Solar power produces energy during the day and can store energy for the night. Solar power does not pollute the environment. However, it has high maintenance cost, and it takes a lot of land space.