Physical water treatment using RF electric fields for the mitigation of CaCO3 fouling in cooling water

  • Leonard D. Tijing
  • , Hang Young Kim
  • , Dong Hwan Lee
  • , Cheol Sang Kim*
  • , Young I. Cho
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The present study investigated the feasibility of RF electrical fields in mitigating CaCO3 fouling in cooling water. Three different voltages and two frequencies were used for the RF electric fields produced directly in water with varying cold-side velocity. Artificial hard water was used. Fouling resistances for the PWT-treated cases decreased by 34-88% from the values for no-treatment cases, depending on the cold-side flow velocity. The results showed blunt crystal structures for the PWT-treated cases, while no-treatment cases had sharp and pointed crystal structures. The new PWT method using RF electric fields presents a valid tool to mitigate CaCO3 fouling in cooling water.

Original languageEnglish
Pages (from-to)1426-1437
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume53
Issue number7-8
DOIs
StatePublished - 2010.03

Keywords

  • CaCO fouling
  • Fouling resistance
  • Physical water treatment
  • RF electric field

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Mechanical
  • Engineering - Petroleum
  • Engineering - Chemical
  • Physics & Astronomy

Fingerprint

Dive into the research topics of 'Physical water treatment using RF electric fields for the mitigation of CaCO3 fouling in cooling water'. Together they form a unique fingerprint.

Cite this