Thermal resistance in corrugated plate heat exchangers under crystallization fouling of calcium sulfate (CaSO4)

Eungchan Lee, Jaemyeong Jeon, Hoon Kang, Yongchan Kim

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

In a water heating system, the performance of the corrugated plate heat exchangers (PHEs) is often degraded by crystallization fouling due to the precipitation of insoluble salts on the heat transfer surface. In this study, the fouling resistance in corrugated PHEs was measured and analyzed according to CaSO4 concentration, flow velocity, inlet temperatures of the solution and hot water, and corrugation angle of the plate. In addition, the asymptotic fouling resistance and asymptotic fouling period of PHEs were analyzed by varying the operating and geometric conditions of PHEs. A new correlation for the CaSO4 crystallization fouling resistance was developed in terms of the asymptotic fouling resistance and asymptotic fouling period. The present correlation yielded satisfactory predictions with a mean absolute deviation of 4.8% from the measured data.

Original languageEnglish
Pages (from-to)908-916
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume78
DOIs
Publication statusPublished - 2014 Nov

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development program in Energy Technology (No. 20124010203250) and the Energy & Technology Development program (No. 2012T100100356) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea.

Keywords

  • Accelerated condition
  • Calcium sulfate
  • Correlation
  • Crystallization fouling
  • Fouling resistance
  • Plate heat exchanger

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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