Heat Recovery Technologies Commonly Used in Coal-Fired Power Plants

Heat Recovery Technologies Commonly Used in Coal-Fired Power Plants

Coal-fired power plants are a common power generation facility, and their heat recovery can effectively improve energy efficiency and reduce environmental pollution. The following are heat recovery technologies commonly used in coal-fired power plants:

Boiler Waste Heat Utilisation: Coal-fired power plants use boilers to convert coal-fired electricity into high-temperature, high-pressure steam, which is used to drive turbines to generate electricity. During this process, the boiler generates a large amount of flue gas and waste heat. By installing a waste heat boiler, the waste heat from the flue gases can be utilised to generate steam for heating, industrial processes or other uses.

Utilisation of waste heat from flue gas desulphurisation: Coal-fired power plants produce a large amount of waste heat during the flue gas desulphurisation process. This waste heat can be recovered through a heat exchanger and utilised to heat water or provide thermal energy to other systems such as heating or industrial processes.

Flue gas denitrification waste heat utilisation: Flue gas denitrification is an important part of emission control in coal-fired power plants and also produces a large amount of waste heat. By recycling this waste heat, hot water or thermal energy can be provided for other purposes, thus realising energy savings and reducing environmental pollution.

Waste Heat Power Generation: A portion of the waste heat from a coal-fired power plant can be converted into electricity through a waste heat power generation unit. Waste heat power generation uses waste heat to produce steam, which then drives a steam turbine to generate electricity. This approach improves the overall efficiency of the power plant and converts the waste heat into a useful energy output.

These heat recovery technologies can help coal-fired power plants improve energy efficiency, reduce greenhouse gas emissions such as carbon dioxide, and lower environmental impacts. Heat recovery technologies are often an important consideration in the design and operation of coal-fired power plants to achieve sustainable development and green energy objectives