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(1) Thermal Power Generation
Thermal power plants generate electricity by burning fossil fuels such as coal, natural gas, or oil. The process involves fuel combustion in a boiler to produce high-pressure steam, which drives a turbine connected to a generator. The steam is then condensed back into water using condensers and recycled. Plate heat exchangers are widely used in condensers to cool the steam efficiently and in waste heat recovery systems to capture and reuse excess heat, improving overall plant efficiency and reducing energy loss.
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(2) Nuclear Power Generation
Nuclear power plants use nuclear fission to heat water, producing steam that drives turbines. The process includes nuclear reactions in the reactor core, heat transfer to water, steam generation, and electricity production. Plate heat exchangers play a critical role in cooling systems, such as reactor coolant loops and spent fuel pools, ensuring efficient heat transfer and maintaining safe operating temperatures. They are also used in secondary circuits to enhance thermal efficiency.
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(3) Renewable Energy (Solar and Geothermal)
Solar thermal and geothermal plants convert solar or geothermal heat into electricity. Solar plants use mirrors to concentrate sunlight, heating a fluid to produce steam, while geothermal plants extract heat from underground reservoirs. Plate heat exchangers are essential in transferring heat from solar collectors or geothermal fluids to power cycles, enhancing energy conversion efficiency and system performance. They also help manage thermal fluctuations in these systems.
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(4) Supercritical CO₂ Power Generation
Supercritical CO₂ power systems use CO₂ in its supercritical state as a working fluid in a Brayton cycle. The process involves compressing CO₂, heating it to supercritical temperatures, expanding it through a turbine, and recovering heat. Plate heat exchangers are used in recuperators and coolers to manage heat transfer, ensuring compact and efficient system operation. They are particularly effective in handling high-pressure and high-temperature conditions, improving overall cycle efficiency.
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(5) Industrial Waste Heat Recovery
Industries recover waste heat from processes like steel or cement production to generate electricity. The process involves capturing heat from exhaust gases or hot fluids, transferring it to a working fluid, and driving a turbine. Plate heat exchangers are used to transfer heat from industrial waste streams to power cycles, maximizing energy utilization and reducing operational costs. They are also employed in preheating systems to improve overall process efficiency.
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