Reduction of dust deposition in air-cooled condensers in thermal power plants by Ni–P-based coatings

One of the largest problems with most current thermal power plants is the cooling efficiency. This paper aims to massively reduce fuel consumption and heat wasted in thermal power plants and hence CO 2 emissions by resolving fouling issues associated with air-cooled condensers. In order to reduce th...

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Bibliographic Details
Published in:Clean technologies and environmental policy 2021-08, Vol.23 (6), p.1727-1736
Main Authors: Zhao, Bo, Wang, Xiaoxv, Xu, Yongshao, Liu, Bingzheng, Cao, Shengxian, Zhao, Qi
Format: Article
Language:English
Subjects:
Antifouling coatings
Antifouling substances
Carbon dioxide
Carbon dioxide emissions
Coatings
Condensers
Condensers (liquefiers)
Cooling
Deposition
Dust
Dust control
Earth and Environmental Science
Electroless coating
Electroless plating
Energy consumption
Environment
Environmental Economics
Environmental Engineering/Biotechnology
Environmental policy
Fouling
Heat
Heat exchangers
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Industrial plant emissions
Nickel
Original Paper
Phosphorus
Polytetrafluoroethylene
Power consumption
Power plants
Sustainable Development
Thermal power
Thermal power plants
Thermoelectricity
Tubes
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Summary:One of the largest problems with most current thermal power plants is the cooling efficiency. This paper aims to massively reduce fuel consumption and heat wasted in thermal power plants and hence CO 2 emissions by resolving fouling issues associated with air-cooled condensers. In order to reduce the dust fouling deposition in the air-cooled condensers, the finned flat tubes were coated with nickel−phosphorus and nickel−phosphorus−polytetrafluoroethylene (Ni–P-PTFE) by an electroless coating technology. The anti-fouling performance of the coated tubes was investigated using the field operation parameters of air-cooled condensers, and the influence of the surface energies of the coatings on the dust adhesion was also investigated. The results demonstrated that the Ni–P coated finned tubes performed best, which reduced fouling resistance by 83.3% compared with the untreated finned tubes. The Ni–P coatings have potential applications in thermal power plants for reducing heat exchanger fouling and hence significantly decreasing waste heat and CO 2 emissions. Graphic abstract
ISSN:1618-954X
1618-9558
DOI:10.1007/s10098-021-02055-6