Popis: |
Water and energy are elementary requirements for well-being and prosperity of humans. They are mutually dependent on each other. Energy production involves a huge quantity of water and in turn, water structures need a huge amount of energy. This dependency is termed as ‘water-energy nexus'. As a result of population and economic growth, and higher living standard, future demand for both water and energy is anticipated to upsurge, particularly in the emerging economies like India. The majority of energy-linked water usage is for power generation, which is led by water-concentrated electricity generation from coal, natural gas, and nuclear materials. Majority of the water utilised at thermal power plants is for cooling purpose in addition to ash handling, boiler feed water, flue gas desulphurisation and for other applications in coal-fired power plants. Governing authorities shall impose limits on freshwater usage by power plants by framing regulatory norms. The present stress on freshwater supplies and increasing demand is compelling the power generating units to search for alternative sources or supplementary sources of water. Utilising water from such sources will help conserve fresh water for other uses, such as drinking and agriculture. The current paper discusses water resource management for coal-based thermal power plants. If further evaluates various alternatives or measures for water conservation in thermal power plants. |