Preparation of anti-fouling heat transfer surface by magnetron sputtering a-C film on electrical discharge machining Cu surface

He, Z.R.; Liu, C.S.; Jie, Xiaohua; Lian, Weiqi; Luo, Song

doi:10.1016/j.surfcoat.2019.03.075

Cited by 8 publications

(2 citation statements)

References 47 publications

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“…Mechanical techniques, such as laser machining and electrical discharge machining (EDM), are employed for creating anti-fouling surfaces, but they tend to be relatively costly and less efficient. Both EDM and magnetron sputtering have been applied to create C-films on Cu substrates, resulting in elevated water contact angles [38]. A simple and relatively cheap method of fabricating superhydrophobic surface using CaCO 3 self-assembled coatings modified by sodium stearate in simulated geothermal water has been investigated by Wang, G. G. et al These coatings were found to have a contact angle of 158.9 • C after 48 h of immersion in geothermal water [39].…”

Section: Effective Solutionsmentioning

confidence: 99%

A Review on Geothermal Heat Exchangers: Challenges, Coating Methods, and Coating Materials

Bhuvanendran Nair Jayakumari,

Malik,

Mittal

et al. 2023

Coatings

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Geothermal energy is likely to be a significant contributor in achieving sustainable energy goals and net-zero emissions targets. Within geothermal power plants, heat exchangers play a critical role in harnessing this renewable energy source. However, these heat exchangers encounter significant challenges when exposed to geothermal fluids, including erosion, corrosion, and scaling, which adversely affects their performance and longevity. The current review focuses on surface engineering techniques, particularly coatings, as a highly effective and economically viable solution to address these challenges in geothermal heat exchangers. The review begins by providing an overview of geothermal energy, its significance in the context of sustainability and the important role played by heat exchangers in geothermal power generation, followed by the challenges and their impact on heat exchangers. The subsequent section focuses on surface engineering by coatings and its types employed to enhance the performance of heat exchangers. In the final part, the reader is presented with an overview of the challenges associated with the application of coatings in geothermal heat exchangers and potential future directions in this field. This review offers a detailed understanding of the critical role coatings play in improving the efficiency and service life of heat exchangers in geothermal power plants.

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Section: Effective Solutionsmentioning

confidence: 99%

A Review on Geothermal Heat Exchangers: Challenges, Coating Methods, and Coating Materials

Bhuvanendran Nair Jayakumari,

Malik,

Mittal

et al. 2023

Coatings

View full text Add to dashboard Cite

show abstract

“…Because of the inhibition effect from deposited fouling on the heat-transfer surface, higher fouling resistance (R f ) and lower heat-transfer coefficient appeared on the heat exchanger during the operation. In past decades, researchers investigated antifouling coating, geometric topography surface, and micro/nanostructure surfaces, which modified the surface property, to mitigate the adhesion of fouling [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Wang

Fan

et al. 2020

Coatings

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Fouling is one of the common problems in heat-transfer applications, resulting in higher fouling resistance, and lower heat-transfer coefficient. This paper introduces the design and fabrication of an Fe–Al coating with micro/nanostructures on low-carbon steel by electrical discharge coating (EDC) technology to improve the antifouling property. The Fe–Al coating with micro/nanostructures is characterized by a large number of micro/nanostructures and superior anti-fouling property, which is attributed to its hydrophobic surface. The antifouling property, fouling induction period and contact angle of the Fe–Al coating with micro/nanostructures increase with the increasing gap voltage. Compared with the polished surface of low-carbon steel, the Fe–Al coating with micro/nanostructures extends the induction period from 214 to 1350 min, with a heat flux of 98 kW·m−2. After 50 adhesion tests, the contact angle of the Fe–Al coating with micro/nanostructures decreases from 6.81% to 27.52%, which indicates that the Fe–Al coating with micro/nanostructures is durable and suitable for industrial applications.

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Fouling and fouling mitigation of mineral salt using bio-based functionalized graphene nano-plates

Oon

Kazi

Zubir

et al. 2020

J Therm Anal Calorim

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Preparation of anti-fouling heat transfer surface by magnetron sputtering a-C film on electrical discharge machining Cu surface

Cited by 8 publications

References 47 publications

A Review on Geothermal Heat Exchangers: Challenges, Coating Methods, and Coating Materials

A Review on Geothermal Heat Exchangers: Challenges, Coating Methods, and Coating Materials

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Fouling and fouling mitigation of mineral salt using bio-based functionalized graphene nano-plates

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