In today’s quest for electrical energy and increasing hazards in our environment, alternatives to the use of non – renewable and polluting fossil fuels have to be investigated. One such alternative is SOLAR ENERGY.
Solar energy is quite simply, the energy produced directly from the sun and collected elsewhere, on earth. The sun creates its energy through a thermonuclear process that converts about 650,000,000 tons of hydrogen to helium every second. The process creates heat and electromagnetic radiation. The heat remains in the sun and is instrumental in maintaining the thermonuclear reaction. The electromagnetic radiation (including visible light, infra – red light, and ultra – violet radiation) streams out into space in all directions.
Only a very small fraction of the total radiation produced reaches the earth. The radiation that does reach the earth is the indirect source of nearly every type of energy used today. The exceptions are geothermal energy, and nuclear fission and fussion. Even fossil fuels owe their origins to the sun: they were once living plants and animals whose life were dependent upon the sun.
Much of the world’s required energy can be supplied directly by solar power. Energy can be provided directly or indirectly by the sun. The practicality of doing so will be examined, as well as the benefits and drawn backs. In addition, the uses of solar energy currently will be discussed.
Due to the nature of solar energy, two components are required to have a functional solar energy generator. These components are a collector and a storage unit. The collector simply collects the radiation that falls on it and converts a fraction of it to the other forms of energy (either electricity and heat or heat alone). The storage unit is required because of the non – constant nature of solar energy, at certain times only a very small amount of radiation will be received.
At night or during heavy cloud cover, for example, the amount of energy produced by the collector will be quite small. The storage unit can hold the excess energy produced during the periods of maximum productivity, and release it when the productivity drops. In practice, a backup power supply is usually added, for the situations when the amount of energy required is greater than both what is being produced and what is stored in the container.
The objective of any study or research is to find answers to research questions.
Oshala (1981) describe research as the most important tool for advancing knowledge for promotion progress and for enabling man to relate more effective to his environment on this, not the researcher has to do with many thing in the process.
The researcher needs to plan carefully collected data systematically, analyze and interpret data collected in order to provide solution to the problem while in subject to research in choosing the means by which man search for knowledge can be established. Akpom (1995) pointed out that research employees in scientific knowledge which is a systematic approach for general that guides a researcher in collection and analyzing data for a particular study; it helps the researchers to determine relation on any variables.
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(2014, 10). Use Of Solar Energy Rather Than Electric Energy To Charge Cell Phone.. Afribary.com. Retrieved 10, 2014, from https://afribary.com/read/3371/use-of-solar-energy-rather-than-electric-energy-to-charge-cell-phone-4651
"Use Of Solar Energy Rather Than Electric Energy To Charge Cell Phone." Afribary.com. 10 2014. 2014. 10 2014 <https://afribary.com/read/3371/use-of-solar-energy-rather-than-electric-energy-to-charge-cell-phone-4651>.
"Use Of Solar Energy Rather Than Electric Energy To Charge Cell Phone.." Afribary.com. Afribary.com, 10 2014. Web. 10 2014. <https://afribary.com/read/3371/use-of-solar-energy-rather-than-electric-energy-to-charge-cell-phone-4651>.
"Use Of Solar Energy Rather Than Electric Energy To Charge Cell Phone.." Afribary.com. 10, 2014. Accessed 10, 2014. https://afribary.com/read/3371/use-of-solar-energy-rather-than-electric-energy-to-charge-cell-phone-4651.
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