Retardation of heat exchanger surfaces mineral fouling by water-based diethylenetriamine pentaacetate-treated CNT nanofluids

Teng, Kah Hou; Amiri, Ahmad; Kazi, S.N.; Bakar, M. Abu; Chew, Bee Teng; Al-Shamma’a, Ahmed; Shaw, Andy

doi:10.1016/j.applthermaleng.2016.08.181

Cited by 44 publications

(8 citation statements)

References 43 publications

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“…The higher the concentration of SCMC, more fouling inhibitor molecules are adsorbed on the surface of calcite. This will change the surface characteristics of a larger area of crystal, severely destroying the crystal surface structure, surface charge, and the corresponding double layer, so that the crystal cannot continue to grow freely. Therefore, the performance of fouling inhibition increases with the increase in SCMC concentration.…”

Section: Resultsmentioning

confidence: 99%

“…To reduce the fouling depositing on heat exchanger surface, an economical and effective method is to add a fouling inhibitor to the circulating cooling water . Most of the existing fouling inhibitors are harmful to environment, therefore mainly nontoxic and environment‐friendly fouling inhibitors are sought at present . As one of the most important cellulose derivatives, sodium carboxymethyl cellulose (SCMC) has been widely used in recent years because of its nontoxic nature, biodegradability, and biocompatibility .…”

Section: Introductionmentioning

confidence: 99%

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The Inhibition of Sodium Carboxymethyl Cellulose on Calcite Growth by Molecular Dynamics Simulation

Wang

et al. 2019

Macro Theory & Simulations

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Sodium carboxymethyl cellulose (SCMC) effectively inhibits the growth of calcium carbonate fouling. In this work, molecular dynamics simulation is used to reveal the antifouling mechanism between SCMC and calcite surface. The configuration, radial distribution function, interaction energy between SCMC and calcite surface, and ability of SCMC to replace water molecules are analyzed. The results indicate that SCMC molecules regularly appear in the vicinity of 2.3 Å near the calcite surface for the different concentrations, and a strong interaction exists between them. The probability of SCMC appearing at ≈2.3 Å from the crystal surface increases with the SCMC concentration, and more SCMC molecules are adsorbed on calcite surface. Moreover, the interaction between SCMC and calcite surface increases with the increase of SCMC concentrations, and the SCMC molecules exhibit strong ability to drive water molecules on calcite surface. The binding energy between three calcite surfaces and SCMC from strong to weak follows the order: (1‐10) > (104) > (110).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Inhibition of Sodium Carboxymethyl Cellulose on Calcite Growth by Molecular Dynamics Simulation

Wang

et al. 2019

Macro Theory & Simulations

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“…Maxwell [2] invented the dispersing particles into fluids with theoretical correlation. Scale formation is called a fouling effect and the effect creates the inner surface of the heat exchanger curved coils [3][4][5][6][7][8][9]. Stability of various base fluids analysed with zeta potential analysis with the --------------principle of electrophoretic [10].…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on stability of multi walled carbon nanotube with different oil based nanofluids

Periyasamy¹,

Manickam²

2020

Therm sci

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In this experimental analysis, the stability of multi walled carbon nanotube based nanofluids with six different base fluids such as water, vegetable oil, engine oil, soap oil, brake oil, and suspension oil are studied. The nanofluids are prepared by the two-step method without the addition of surfactant and at two-volume concentrations. This stability analysis is performed by the UV-Vis spectrophotometer, measuring pH values, and photo capturing techniques. This analysis is carried out at three-time intervals such as at the time of preparation, 15 days after preparation, and 30 days after preparation. From the experimental analysis, the higher order of stability is found to be the multi walled carbon nanotube/water nanofluids, multi walled carbon nanotube/vegetable oil, multi walled carbon nanotube/engine oil, multi walled carbon nanotube/ soap oil, multi walled carbon nanotube/brake oil, and multi walled carbon nanotube/suspension oil-based nanofluids.

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“…The continuous monitoring also means a reduced risks of sudden break down of boiler, heat exchangers, cooling tower, etc. during an industrial operation [2,4]. Cotemporary practice is to use the traditional manual methods in industrial water cooling systems.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a non-invasive real-time microwave sensor for assessing water hardness in heat exchangers

Teng

Shaw

Ateeq

et al. 2017

Journal of Electromagnetic Waves and Applications

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Retardation of heat exchanger surfaces mineral fouling by water-based diethylenetriamine pentaacetate-treated CNT nanofluids

Abstract: The version presented here may differ from the published version or from the version of the record. Please see the repository URL above for details on accessing the published version and note that access may require a subscription.

Cited by 44 publications

References 43 publications

The Inhibition of Sodium Carboxymethyl Cellulose on Calcite Growth by Molecular Dynamics Simulation

The Inhibition of Sodium Carboxymethyl Cellulose on Calcite Growth by Molecular Dynamics Simulation

Experimental studies on stability of multi walled carbon nanotube with different oil based nanofluids

Design and implementation of a non-invasive real-time microwave sensor for assessing water hardness in heat exchangers

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