How is Water Used in a Coal-Fired Power Plant Quizlet

A coal-fired power plant is a type of thermal power station that uses coal as a source of fuel to generate electricity. The process of producing electricity in a coal-fired power plant involves the consumption of a large amount of water. In this article, we explore how water is used in a coal-fired power plant quizlet.

Cooling System

The cooling system in a coal-fired power plant works by circulating water through a series of pipes that run through the turbine and condenser. This process allows the steam to be cooled and condensed back into water, which can be used again in the boiler. Water is used in this process because of its ability to absorb and transfer heat effectively. Without water, the heat generated in the system would quickly build up and cause significant damage to the equipment.

Boiler Feedwater

The boiler feedwater is the water that is used to create steam in the boiler. This water is usually treated to remove impurities and minerals that can cause damage to the boiler. It is then heated to a high temperature and pressure in the boiler, which creates steam that is used to generate electricity. The water that is used as boiler feedwater is typically sourced from a nearby body of water, such as a river or lake.

Ash Handling

Coal-fired power plants produce a large amount of ash as a byproduct of the combustion process. The ash that is produced is usually collected in a hopper and then transported to an ash handling system. Water is used in this process to create a slurry that can be transported more easily. The slurry is then pumped to a storage facility or landfill for disposal.

Environmental Concerns

The use of water in a coal-fired power plant can have significant environmental impacts. The cooling system, in particular, can have a negative impact on nearby bodies of water. The discharge of warm water back into the environment can cause thermal pollution, which can impact aquatic ecosystems. Additionally, the withdrawal of large amounts of water from nearby rivers and lakes can have a negative impact on the water supply, particularly during times of drought or low water levels.

Conclusion

Water is a critical component of the coal-fired power plant process. It is used in the cooling system, boiler feedwater, and ash handling. However, the use of water in a coal-fired power plant can have significant environmental impacts. It is important for power plants to implement effective cooling systems and to minimize the amount of water that is withdrawn from nearby bodies of water to reduce these impacts.