Use of Nanostructured Coating to Improve Heat Exchanger Efficiency

Bonanno, Antonino; Raimondo, M.; Pinelli, Michele

doi:10.1007/978-3-319-94358-9_13

Cited by 5 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, this very book represents a contribution to the dissemination of the whole flagship project. The following chapters will present in details the scientific and industrial results of the 18 research projects (see Tables 1.6 and 1.7) [84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101]. Grounding on the experience and results of the flagship project, the final two chapters of this book present an outlook on future manufacturing research by proposing missions aimed at fostering growth and innovation [102] and discussing research infrastructures and funding mechanisms [27].…”

Section: Results Of the Flagship Projectmentioning

confidence: 99%

The Italian Flagship Project: Factories of the Future

Terkaj

Tolio

2019

Factories of the Future

View full text Add to dashboard Cite

This chapter deals with the central role of manufacturing in developed and developing countries, assessing how relevant it is from economic and social perspectives. The current international and Italian manufacturing contexts are analysed by highlighting the main criticalities and the impact of relevant global megatrends. Then, the main ongoing industrial research initiatives are presented both at international and Italian level. Based on the elaboration of current context and research initiatives, the Italian Flagship Project Factories of the Future defined five research priorities for the future of the manufacturing industry. Based on these priorities, the flagship project funded a total of 18 small-sized research projects after a competition based on calls for proposals. The results of the funded research projects are analysed in terms of scientific and industrial results, while providing references for more detailed descriptions in the specific chapters. 1.1 The Importance of Manufacturing Industry Manufacturing industry plays a central role in the economy of developed countries for the generation of wealth, jobs and a growing quality of life. Beyond being a sector capable of directly producing wealth and employment, manufacturing industry is a fundamental pillar of the whole economy. In 2016 the value added of manufacturing represented 15.6% and 14.3% of the Gross Domestic Product (GDP) at world and European Union level, respectively. A relevant number of persons are directly

show abstract

Section: Results Of the Flagship Projectmentioning

confidence: 99%

The Italian Flagship Project: Factories of the Future

Terkaj

Tolio

2019

Factories of the Future

View full text Add to dashboard Cite

show abstract

“…Al 2 O 3 super hydrophobic nano coating is deposited over the finned heat exchanger surface and tested. It expresses the increase in heat transfer coefficient of 176.47 ± 59.45 w/m 2 K over the uncoated standard heat surface area (Bonanno et al., 2019).…”

Section: Materials Of Coating and It's Performancementioning

confidence: 99%

A comprehensive review of the energy efficiency on nano coated fin and tube condenser

Venkateswaran,

Subbaiyan,

Punniyakotti Varadharajan

et al. 2023

Environmental Quality Mgmt

View full text Add to dashboard Cite

The condenser is a piece of equipment used to effectively transfer heat from water to the environment. The fin and tube condenser is the most commonly used in commercial applications. The improved performance of heat transfer in the fin and tube condenser is a significant area of study all over the world because optimizing the efficiency of heat transfer in the condenser will contribute to enhancing the effectiveness of system performance. The vapor deposition, plasma spray, and thermal spray techniques are being used, and it is determined that a heat transfer enhancing coating improves condenser performance. This review discusses the nanomaterial coating over the fin and tube condenser in detail. The various nanomaterial coatings with various propositions and coating methods had been discussed with the evidence of previous researchers. At a 50‐degree inclination angle on the condensate plate, the condensate over the coating surface increases by more than 30%. The thermal properties of the working fluid are improved over the condenser, and the overall effectiveness of the condenser is increased by approximately 40% over the non‐coated condenser. A 1% volumetric concentration of Nanoparticles in the coated material achieves a maximum efficiency increase of 78.7%.

show abstract

“…Some changes made on the plate surfaces, turbulence created in the flow field, expanded surfaces are some of the methods used to increase heat transfer. 10 To improve the thermal performance of plate HEs, Bonanno et al, 11 applied a hydrophobic coating to the surfaces of the HEs and investigated its effects on heat transfer and pressure drop efficiency. In their study, four different sizes of brazed welded HEs were used and plated surfaces were coated by dipping method.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the effect of hydrophobic coating on heat transfer and gasketed plate heat exchanger performance

Dağlı

Özbey

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

In this study, the effect of hydrophobicity on the plate surface on heat transfer, pressure drop, and pump power was investigated without changing the existing designs of gasketed plate heat exchangers (GPHEs). The wet surfaces of the plate were coated with carbon-based polymer solutions with four different hydrophobic groups, that is, FEP, FH3, FH7, and FH10. To increase the hydrophobicity of the FEP material, a new coating solution was synthesized by adding 3, 7, and 10 wt.% h-BN nanoparticles. Heat transfer, pressure loss, and pump power performances of heat exchangers with hydrophobic surface coating were tested at five different Reynolds numbers and compared with the uncoated heat exchanger performance. Also, the efficiency analysis of the GPHE under different hydrophobic conditions was carried out. As a result, the addition of 3 and 7 wt.% h-BN nanoparticles increased the contact angle. However, the addition of 10 wt.% h-BN decreased the contact angle as it increased the rough structure and film thickness on the surface. It was determined that the heat exchanger efficiency increased proportionally with the increase in hydrophobicity. While the highest heat exchanger efficiency value was 0.525 in FH7 coated. However, it was found that there was a 25.6% decrease in heat transfer of FH7 coating compared to uncoated exchanger. The pressure drop of the FH7 surface-coated heat exchanger with the highest hydrophobicity was 207.6% lower than that of uncoated heat exchanger. Energy savings of approximately 41% were achieved in FH7 coated compared to uncoated heat exchangers. It has been emphasized that heat transfer in GPHE systems should be evaluated together with pressure drops and local losses. It was found that the use of hydrophobic surface coating on plates in heat exchangers will contribute to the development of heat exchanger designs, reducing pump costs, and energy consumption.

show abstract

Use of Nanostructured Coating to Improve Heat Exchanger Efficiency

Cited by 5 publications

References 25 publications

The Italian Flagship Project: Factories of the Future

The Italian Flagship Project: Factories of the Future

A comprehensive review of the energy efficiency on nano coated fin and tube condenser

Experimental investigation of the effect of hydrophobic coating on heat transfer and gasketed plate heat exchanger performance

Contact Info

Product

Resources

About