Why can thermal power plants save fuel and what are the conditions for saving fuel?

Introduction Why can thermal power plants save fuel? What are the conditions for saving fuel? You are asking this question, which proves that you are not a professional. I will try to explain it in a simple way. If you want professional answers,

Why can thermal power plants save fuel and what are the conditions for saving fuel?

The fact that you are asking this question proves that you are not a professional. I will try to speak in simple terms. If you want professional and standard answers, you can search for them on Baidu. The water vapor burned by the boiler enters the steam turbine to do work, and the steam turbine drives the generator to produce electricity. The water vapor that has finished its work transfers the remaining heat to the cooling tower, condenses into water and sends it to the boiler. The greatest heat loss in thermal power plants is from hot gases exhausted from the cooling water tower. Professionally speaking, it is the loss of cold source. Waste heat can represent around 60% of the total energy. If after the water vapor has done its job, the heat is not transferred to the cooling tower, but all or part of the water vapor is supplied to other usesilizers, thus reducing the loss of cold source, the fuel of the plant is not reduced and the other users do not need fuel

What is this white substance that comes out of the chimney of the power plant?

When steam produces electricity, the high-pressure steam impacts the turbine blades. The steam after hitting the turbine blades must be cooled and decompressed. The steam at both ends of the turbine blades is large. The greater the pressure difference, the harder the high pressure steam works. Therefore, the steam (called spent steam) after doing the work. the work is cooled by cooling water. The heat absorbed by the cooling water is then dissipated through the water drying tower to produce electricity.

This is also determined by the law of thermodynamics. Energy efficiency = 1-(T low temperature/Thigh temperature). It can be seen that the efficiency of electricity generation is related to the difference in steam temperature in both cases. ends of the turbine blade. The greater the temperature difference, the higher the efficiency.

What are these things that look like chimneys in some towns?

Of course there is smoke in the chimney. White smoke is caused by the fact that the smoke has passed through: denitrification (nitrogen oxides), electrostatic precipitator, desulfurization (sulfur dioxide) and decarbonization. the gas contains heat (white contains water vapor, and when the combustion gases with temperature are cooled, white mist will precipitate) and the pollution is very small. If we talk about those with particularly large diameters in the power plant, these are circulating water towers (also called cooling towers or cooling water towers). The white water that comes out is water vapor, which is not polluting.

It is a cooling tower

Cooling tower is also called cooling tower. It is used to cool hot water, so you can often see white gas coming out of the cooling tower.

Hot water is heat generated by power plants, and part of it may be domestic water (for example, some power plants use water for family areas ). Part is unloaded

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