Validation of an electronic anti-fouling technology in a single-tube heat exchanger

Cho, Y.i.; Choi, Byung-Gap

doi:10.1016/s0017-9310(98)00196-3

Cited by 51 publications

(25 citation statements)

References 11 publications

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“…Proposed concept of electronic anti-fouling technology (Cho & Choi 1999). current. An example is the Ion Enterprises ION Scale Buster device which incorporates a large surface area of zinc with a dry connection, with the brass body to promote electrolytic action and cathodic protection (Mu¨ller-Steinhagen 2000).…”

Section: Mg L )1mentioning

confidence: 99%

Calcium carbonate scale formation and control

MacAdam

Parsons

2004

Rev Environ Sci Biotechnol

193

119

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This paper focuses on the complex problem of calcium carbonate scale formation on heated surfaces and the possibilities of controlling or reducing this problem. The development of scale is a multistage process and is affected by a number of factors, these include supersaturation, pH, temperature and flow velocity. Calcium carbonate deposition can be ameliorated by chemical, physical or biological methods with various level of effectiveness. These controls can be divided into three main categories: those that affect solubility, those that alter the growth mechanism of crystals, and those that change the potential of a surface to foul. One of the most effective methods of controlling crystallization fouling is the addition of chemical inhibitors to potentially scaling waters. There are a number of alternative non-chemical treatment options available, amongst these are the use of magnetic, electronic and electrolytic treatment devices. Scale formation is affected by the physical nature of the material on which it is forming, therefore it is possible to choose material to reduce scale formation. Each of these scale controlling methods has their advantages and a number of factors have to be considered before choosing the right option.

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Section: Mg L )1mentioning

confidence: 99%

Calcium carbonate scale formation and control

MacAdam

Parsons

2004

Rev Environ Sci Biotechnol

193

119

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“…Given the intense focus on mussel-inspired adhesives in recent years, [1][2][3][4][5][6] investigations of the adhesion mechanism of M. californianus have had a profound impact on the design and production of synthetic adhesive polymers that work in a wet environment as well as spurring new approaches to prevent fouling which is of major economic concern to marine shipping, 7 heat exchangers, 8 and biomedical implants. [9][10][11] Mussel adhesion is mediated by a holdfast structure known as the byssus, essentially a bundle of leathery threads tipped by flat adhesive plaques that attach to a variety of hard surfaces ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic Enhancement of Dopa-Mediated Adhesion in a Mussel Foot Protein

2014

Springer Theses

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Dopa (3,4-dihydroxyphenylalanine) is recognized as a key chemical signature of mussel adhesion and has been adopted into diverse synthetic polymer systems. Dopa's notorious susceptibility to oxidation, however, poses significant challenges to the practical translation of mussel adhesion. Using a Surface Forces Apparatus to investigate the adhesion of Mfp3 (mussel foot protein 3) slow, a hydrophobic protein variant of the Mfp3 family in the plaque, we have discovered a subtle molecular strategy correlated with hydrophobicity that appears to compensate for Dopa instability. At pH 3, where Dopa is stable, Mfp3 slow like Mfp3 fast adhesion to mica is directly proportional to the mol% of Dopa present in the protein. At pH 5.5 and 7.5, however, loss of adhesion in Mfp3 slow was less than half that occurring in Mfp3 fast, purportedly because Dopa in Mfp3 slow is less prone to oxidation. Indeed, cyclic voltammetry showed that the oxidation potential of Dopa in Mfp3 slow is significantly higher than in Mfp3 fast at pH 7.5. A much greater difference between the two variants was revealed in the interaction energy of two symmetric Mfp3 slow films (E ad = −3 mJ/m 2 ). This energy corresponds to the energy of protein cohesion which is notable for its reversibility and pH-independence. Exploitation of aromatic hydrophobic sequences to protect Dopa against oxidation as well as to mediate hydrophobic and H-bonding interactions between proteins provides new insights for developing effective artificial underwater adhesives.

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“…Even though there are several researches reported in the worldwide open literature regarding improving the heat transfer rates of the heat exchange system against fouling, a complete solution is yet to come [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of cooling water fouling in a heat exchange system

Sung¹,

Suh

Kim

2008

J Mech Sci Technol

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This study investigated the efficiency of the physical water treatment method in preventing and controlling fouling accumulation on heat transfer surfaces in a laboratory heat exchange system with tap and artificial water. To investigate the fouling characteristics, an experimental test facility with a plate type heat exchange system was newly built, where cooling and hot water moved in opposite directions forming a counter-flow heat exchanger. The obtained fouling resistances were used to analyze the effects of the physical water treatment on fouling mitigation. Furthermore, the surface tension and pH values of water were also measured. This study compared the fouling characteristics of cooling water in the heat exchange system with and without the mitigation methods for various inlet velocities. In the presence of the electrode devices with a velocity of 0.5m/s, the fouling resistance was reduced by 79% compared to that in the absence of electrode devices.

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Validation of an electronic anti-fouling technology in a single-tube heat exchanger

Cited by 51 publications

References 11 publications

Calcium carbonate scale formation and control

Calcium carbonate scale formation and control

Hydrophobic Enhancement of Dopa-Mediated Adhesion in a Mussel Foot Protein

Characteristics of cooling water fouling in a heat exchange system

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