30-07-2011, 04:53 PM
RENEWABLE ELECTRIC ENERGY SOURCES SEMINAR.doc (Size: 25 KB / Downloads: 200)
ABSTRACT:
The electricity requirements of the world are increasing at an alarming rate and the power demand has been running ahead of supply. It is also now widely recognized that the fossil fuels and other conventional resources, presently being used for generation of electrical energy, may not be either sufficient or suitable to keep pace with ever increasing demand of electrical energy of the world. Also the generation of electrical power by coal based steam power plants or nuclear power plants causes pollution. The recent severe energy crisis has forced the world to develop new and alternative methods of power generation, which could not be adopted so far due to various reasons. The magneto-hydro-dynamic(MHD) power generation is one of the examples of a unique method of power generation. The other non-conventional methods of power generation may be solar cells, fuel cells, thermo-electric generator, thermionic conveter, wind power generation, tidal power generation. This paper gives information about different types of
Renewable Energy Sources. Some attention is also paid to reasons for increase in power demand, energy problem, present condition &TOWS analysis.
INTRODUCTION:
Power plays a great role wherever man lives and works—in industry, agriculture, transportation etc. As technology is advancing the consumption of power us steadily
rising. Power is needed in plenty to sustain industrial growth and agricultural production. At present coal, oil and natural gas account for about 77% of the global primary energy consumption. It is universally acknowledged that this pattern of energy consumption is not sustainable and that alternative sources of energy need to be developed to meet the rising world energy demand. Electrical energy is an important index of a country’s economic and technological progress.
The reasons for increase in power demand are:
• Growth of industries
• Increase in domestic load due to new and extensive urban residential area and vertical growth in existing area with increased and intensive use of electrical gadgets.
While the demand for electrical power is on the rise, the overall known resources of petroleum are on the decline. The present petroleum may not last long. The known sources of unconventional energy are nuclear fusion, solar energy, geothermal energy, wind power, tidal wave energy and biogas.
The Energy Problem :
The present crisis has developed because of negligence to tap renewable energy sources in the past. The following problems are being faced globally at present:
1. There is an energy deficit globally.
2. The shortage in energy is bound to increase due to increase in population.
3. If the potential in renewable energy sources is not tapped on a large scale there could be massive ill effects like:
• Faster depletion of fossil fuels
• Acid rain and other serious environmental effects.