Accepted Papers - 3.pdf - UNESCO
Accepted Papers - 3.pdf - UNESCO
Accepted Papers - 3.pdf - UNESCO
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Himalayan region is the source of a number of rivers<br />
which are the major of sweet and potable water used<br />
for drinking, domestic, industrial, transportation and<br />
agricultural applications. But due to the expansion<br />
of industries, uncontrolled population, huge infractural<br />
development and exponentially increasing<br />
demand energy and resource parameters for<br />
sustainable living, entire world is suffering from<br />
water crisis.<br />
On the other hand energy is also an essential<br />
requirement for human survival and growth.<br />
Electricity is the most utilizable form of energy and<br />
widely used for domestic and industrial applications.<br />
Water is not only used in domestic and agricultural<br />
sectors but more of available fraction is used by<br />
industrial sector. Due to the unutilisability of salty<br />
water in domestic/agriculture and industrial (due to<br />
the corrosion problem by salts gradients in water)<br />
sectors; the demand of potable of pure water is<br />
rapidly increasing. In industries a large amount of<br />
water is required for the applications based on<br />
evaporative cooling in power plants, thermal<br />
industries and buildings, boiler feed water, process<br />
water, irrigation of surrounds of industries etc.<br />
In the power sector of the country more than<br />
70 % of the electricity is generated through steam<br />
power plants where coal is used as the primary fuel<br />
and water is used as the evaporative medium for<br />
heat transfer. Similarly in nuclear and gas based<br />
power plants; water is needed. Electricity generation<br />
from hydro power plants is in the second position<br />
in the country and is accepted to increase gradually.<br />
Water is also an essential requirement of refineries<br />
and manufacturing industries. The remaining<br />
processed water of the power plants, industries and<br />
other sectors creates serious water and hence<br />
environmental problem. Some developed countries<br />
of the world already shifted towards refining of the<br />
waste water to fulfill the water demand; but refining<br />
technologies are quite expansive especially the<br />
developing countries like India; where around 40%<br />
population is still below the poverty line. Only the<br />
proper planning and implacable policies can provide<br />
the solution of water conservation and utilization<br />
of waste water for other application. Solar pond can<br />
be an effective technology towards the electricity<br />
generation, water & energy conservation and hence<br />
the protection of environment.<br />
372<br />
2. International Energy Outlook: World Energy<br />
Scenario<br />
According to the International Energy Outlook<br />
2005 (IEO2005) world primary energy consumption<br />
is projected to increase by 57% from 2002 to 2025.<br />
In its reference case, world marketed energy<br />
consumption is projected to increase on average by<br />
2.0 percent per year over the 23-year forecast<br />
horizon from 2002 to 2025-slightly lower than the<br />
2.2 percent average annual growth rate from 1970<br />
to 2002. Worldwide, total energy use in projected<br />
to grow from 412 quadrillion British Thermal units<br />
(Btu) in 2002 to 553 quadrillion Btu in 2015 and<br />
645 quadrillion Btu in 2025.<br />
2.1 World Primary Energy Resources<br />
Use of all energy sources increases over the<br />
forecast period. Fossil fuels (oil, natural gas and<br />
coal) continue to supply much of the energy used<br />
worldwide, and oil remains the dominant energy<br />
source, given its importance in the transportation<br />
and industrial end-use sectors. World OIL use is<br />
expected to grow from 78 million barrels/day in<br />
2002 to 103 million barrels/day in 2015 and 119<br />
million barrels/day in 2025. The projected increment<br />
in worldwide oil use would require an increment in<br />
world oil production capacity of 42 million barrels/<br />
day over 2002 levels.<br />
Natural GAS is projected to be the fastest<br />
growing component of world primary energy<br />
consumption in IEO2005. Consumption of natural<br />
gas worldwide increases in the forecast by an<br />
average of 2.3 % annually from 2002 to 2025,<br />
compared with projected annual growth rates of 1.9<br />
% for oil consumption and 2.0 % for coal<br />
consumption. From 2002 to 2025, consumption of<br />
natural gas is projected to increase by 69 %, from<br />
92 trillion cubic feet (Tcf) to 156 Tcf, and its share<br />
of total energy consumption is projected to grow<br />
from 23 %to 25%. The electric power sector<br />
accounts for 51 % of the total incremental growth<br />
in worldwide natural gas demand over the forecast<br />
period.<br />
World COAL consumption is projected to<br />
increase from 5,262 million short tons (Mst) in 2002<br />
to 7,245 Mst in 2015, at an average rate of 2.5<br />
percent per year. From 2015 to 2025, the projected<br />
rate of increase in world coal consumption slows to