18-09-2014, 12:11 PM
RENEWABLE ENERGY RESOURCES
RENEWABLE ENERGY.doc (Size: 1.06 MB / Downloads: 45)
ABSTRACT:
Energy is a critical component in the development of any country and more so in the context of the developing countries. Rapid industrialization is very often hampered due to inadequate energy availability. Communications, health, shelter and other basic needs of the society are also very much restrained by inadequate availability of energy at several phases and sometimes it to such an extent that it even brings the whole process of planning in that sector to a standstill. However, the oil crisis starting from 1973 had brought to focus that renewable energy sources have a very important role to play since the price of a non-renewable source could be changed often adversely to the developmental interests of the poorer countries. However, if one was to look at the economic cost and the way some of these can be suitably priced it becomes apparent that many of the alternative sources of energy are already in a position to compete with conventional energy sources. Solar Energy and Wind Energy appear as natural sources of such renewable energy options and these have been used in many countries somewhat successfully.
On the other hand, there are many other sources of alternative energy forms such as Biomass, Bio fuels, Hydrogen Energy and the like which when developed could have an importance role in meeting the energy
INTRODUCTION:
Energy is the key input to drive and improve the life cycle. Primarily it is gift of nature to mankind in various forms. The consumption of energy is directly proportional to the progress of mankind. With ever growing population, improvement in living standard of the humanity, industrialization of developing countries, the global demand is expected to increase rather significantly in the near feature. The primary source of energy is fossil fuel, however finiteness of fossil fuel reserves and large scale environmental degradation caused by their wide scale use, particularly global warming, urban air pollution and acid rains, strongly suggest the use of non-conventional energy resources
Irrespective of conventional and non-conventional, here we get a pictorial view of percentages of energy resources consumption
NON-CONVENTIONAL ENERGY SOURCES:
An energy resource that is replaced rapidly by natural processes. Some examples of non-conventional energy resources are sunlight, hydropower, geothermal and wood. When you use some sunlight to warm your back, more is made almost immediately available. Water above the dam is continually replaced by rainfall. If you chop down a tree, it takes a while for the forest to grow enough to replace that wood.
CONVENTIONAL ENERGY RESOURCES:
An energy resource that is not replaced or is replaced very slowly by natural processes. Primary examples of conventional energy resources are the fossil fuels--oil, natural gas, and coal. Fossil fuels are continually produced by the decay of plant and animal matter, but the rate of their production is extremely slow, very much slower than the rate at which we use them. Any conventional energy resources that we use are not replaced in a reasonable amount of time and are not available to us again
SOLAR ENERGY:
Energy from the sun is called solar energy. The Sun’s energy comes from nuclear fusion reaction that takes place deep in the sun. Hydrogen nucleus fuses into helium nucleus. The energy from these reactions flow out from the sun and escape into space.
Solar energy is sometimes called radiant energy. These are different kinds of radiant energy emitted by sun. The most important
SOLAR ENERGY APPLICATIONS
Heating and cooling of residential building.
Solar water heating.
Solar drying of agricultural and animal products.
Salt production 5. Solar cookers.
Solar engines for water pumping.
Solar Refrigeration.
Solar photo voltaic cells,
Solar furnaces.
ADVANTAGES OF BIO GAS TECHNOLOGY
It provides a better and cheaper fuel cooking, lighting and for power generation.
It produces good quality, enriched manure to improve soil fertility.
It proves an effective and convenient way for sanitary disposal of human excreta, improving the hygienic conditions.
It generates social benefits such as reducing burden on forest for meeting cooking fuel by cutting of tree for fuel wood, reduction in the drudgery of women and children etc
TIDAL POWER PLANTS
The development of a nation is estimated from the total amount of energy it produces and consumes in relation to its size and Population.
Human-Progress has been judged from the ways in which man has been able to develop and harness energy.
The present shortage of the energy production sources due to deplitable nature of fossil flues has awakened the world human community to search for new unconventional and replenish able energy sources.
According to the energy experts, exhaustible resources extracted from the ground (coal, oil, gas, and uranium), in the face increasing demand, results into a cycle.
This cycle starts at zero production increases exponentially than
CONCLUSION:
With reference to increased technology and for industrialization, usage of fossil fuels and non-conventional resources is essential. As fossil fuels are the one of the important cause for the environmental pollution like depletion of ozone layer, acid rains, global warming etc. so, demand for use of NON-CONVENTIONAL energy sources in developed and developing countries had increased at a rapid and accelerating rate for reducing the environmental pollution