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 CO₂ 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 CO₂ emissions.

Graphic abstract

中文翻译：

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Ni-P基涂层减少了热电厂风冷冷凝器中的粉尘沉积

当前大多数火力发电厂的最大问题之一是冷却效率。本文旨在大幅减少火力发电厂的燃料消耗和热量浪费，从而减少CO ₂解决与风冷冷凝器相关的结垢问题，减少排放。为了减少风冷冷凝器中的积灰，通过化学镀技术在翅片扁平管上镀镍-磷和镍-磷-聚四氟乙烯（Ni-P-PTFE）。利用风冷冷凝器的现场运行参数研究了涂层管的防污性能，并研究了涂层表面能对粉尘附着力的影响。结果表明，镀Ni-P的翅片管性能最好，与未处理的翅片管相比，其耐污垢性降低了83.3％。Ni-P涂层在火力发电厂中具有潜在的应用，可减少热交换器的结垢，从而显着减少废热和一氧化碳₂排放。

图形摘要