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

Eungchan Lee; Jaemyeong Jeon; Hoon Kang; Yong Chan Kim

doi:10.1016/j.ijheatmasstransfer.2014.07.069

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

Eungchan Lee, Jaemyeong Jeon, Hoon Kang, Yong Chan Kim

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

15 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 language	English
Pages (from-to)	908-916
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	78
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2014.07.069
Publication status	Published - 2014 Jan 1

ASJC Scopus subject areas

Mechanical Engineering
Condensed Matter Physics
Fluid Flow and Transfer Processes

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

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.",

keywords = "Accelerated condition, Calcium sulfate, Correlation, Crystallization fouling, Fouling resistance, Plate heat exchanger",

author = "Eungchan Lee and Jaemyeong Jeon and Hoon Kang and Kim, {Yong Chan}",

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T1 - Thermal resistance in corrugated plate heat exchangers under crystallization fouling of calcium sulfate (CaSO4)

AU - Lee, Eungchan

AU - Jeon, Jaemyeong

AU - Kang, Hoon

AU - Kim, Yong Chan

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - Accelerated condition

KW - Calcium sulfate

KW - Correlation

KW - Crystallization fouling

KW - Fouling resistance

KW - Plate heat exchanger

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