Scaling Control for Heat Exchangers in Recirculating Cooling Systems Using Treated Municipal Wastewater

2014 ◽  
Vol 53 (42) ◽  
pp. 16366-16373 ◽  
Author(s):  
Wenshi Liu ◽  
Shih-Hsiang Chien ◽  
David A. Dzombak ◽  
Radisav D. Vidic
Keyword(s):  
Heat Exchangers ◽  
Municipal Wastewater ◽  
Cooling Systems ◽  
Treated Municipal Wastewater ◽  
Recirculating Cooling Systems

Control of mineral scale deposition in cooling systems using secondary-treated municipal wastewater

2011 ◽  
Vol 45 (2) ◽  
pp. 748-760 ◽  
Author(s):  
Heng Li ◽  
Ming-Kai Hsieh ◽  
Shih-Hsiang Chien ◽  
Jason D. Monnell ◽  
David A. Dzombak ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Cooling Systems ◽  
Treated Municipal Wastewater ◽  
Mineral Scale ◽  
Scale Deposition

Mineral scaling mitigation in cooling systems using tertiary-treated municipal wastewater

2012 ◽  
Vol 46 (14) ◽  
pp. 4488-4498 ◽  
Author(s):  
Wenshi Liu ◽  
Shih-Hsiang Chien ◽  
David A. Dzombak ◽  
Radisav D. Vidic
Keyword(s):  
Municipal Wastewater ◽  
Cooling Systems ◽  
Mineral Scaling ◽  
Treated Municipal Wastewater

Corrosion management in power plant cooling systems using tertiary-treated municipal wastewater as makeup water

2012 ◽  
Vol 61 ◽  
pp. 231-241 ◽  
Author(s):  
Mahbuboor R. Choudhury ◽  
Ming-Kai Hsieh ◽  
Radisav D. Vidic ◽  
David A. Dzombak
Keyword(s):  
Power Plant ◽  
Municipal Wastewater ◽  
Makeup Water ◽  
Cooling Systems ◽  
Treated Municipal Wastewater ◽  
Power Plant Cooling

Investigation on the Factors Affecting Corrosion of Tertiary-Treated Municipal Wastewater

2013 ◽  
Vol 295-298 ◽  
pp. 1222-1226
Author(s):  
Hui Xia Lu ◽  
Xiao Wei Jiang ◽  
Wei Chen
Keyword(s):  
Carbon Steel ◽  
Municipal Wastewater ◽  
Makeup Water ◽  
Cooling Systems ◽  
Sulfate Ions ◽  
Factors Affecting ◽  
Salt Ions ◽  
Weight Loss Method ◽  
Treated Municipal Wastewater ◽  
Loss Method

Tertiary treatment of municipal wastewater is necessary to reduce its scaling potential for using as makeup water of circulating cooling systems. In this study the corrosivity and the factors affecting corrosion of municipal wastewater tertiary-treated by nanofiltration membrane process were assessed by weight-loss method. The results show that concentration of salt ions such as Ca2+, Mg2+, Cl- and SO42- has a significant effect on corrosivity to carbon steel. Certain quantity of calcium and magnesium ions could inhibit the corrosion of carbon steel, however, chlorine and sulfate ions could accelerate the corrosion of carbon steel. The corrosion inhibition effect of three inhibitors (PC-604, RP-101 and poly epoxy succinate (PESA)) in tertiary-treated municipal wastewater on the carbon steel was evaluated. PC-604 had the best corrosion inhibitor effect and the lowest dosage. This research has guiding significance for using tertiary-treated municipal wastewater as makeup water of circulating cooling systems.

INFLUENCE OF MAGNETIC NANOPARTICLES ON ACOUSTIC ATTENUATION IN LIQUIDS

Akustika ◽  
2020 ◽  
pp. 8-13
Author(s):  
Štefan Hardoň ◽  
Jozef Kúdelčík
Keyword(s):  
Magnetic Nanoparticles ◽  
Heat Exchangers ◽  
Magnetic Fluids ◽  
Magnetic Flux Density ◽  
Acoustic Attenuation ◽  
Cooling Systems ◽  
Practical Applications ◽  
Acoustic Spectroscopy ◽  
Aggregation Processes ◽  
Diagnostics And Therapy

Magnetic fluids with nanoparticles dispersed in water or oils offer attractive applications in biomedicine and industry. Biocompatible magnetic fluids are used for diagnostics and therapy in medical applications, in pharmacy, and biosensors. Application of ferrofluids is expanding into energy conservation, faster and efficient cooling, and hence better performance in a wide variety of practical applications (in heat exchangers, mainly in micro-cooling systems). For the study of the influence of an external magnetic field on the aggregation processes of magnetic nanoparticles in magnetic fluids, acoustic spectroscopy was used. The jump changes of the magnetic flux density at various temperatures influenced the acoustic attenuation. The measured changes were results of nanoparticle aggregations into new structures.

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