Composite fouling characteristics of CaCO3 and CaSO4 in plate heat exchangers at various operating and geometric conditions

Kang Sub Song; Junyub Lim; Sungho Yun; Dongwoo Kim; Yongchan Kim

doi:10.1016/j.ijheatmasstransfer.2019.03.032

Composite fouling characteristics of CaCO₃ and CaSO₄ in plate heat exchangers at various operating and geometric conditions

Kang Sub Song, Junyub Lim, Sungho Yun, Dongwoo Kim, Yongchan Kim

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

51 Citations (Scopus)

Abstract

In a water heating system, such as a district heating and hot water supply system, the composite fouling of CaCO₃ and CaSO₄ characterizes the actual usage environment. In this study, the composite fouling characteristics of CaCO₃ and CaSO₄ in plate heat exchangers were measured and analyzed at various concentrations, flow velocities, temperatures, and chevron angles. Moreover, based on the measured data, empirical correlations for the fouling resistance, fouling period, and pressure drop ratio at an asymptotic state, are developed as a function of concentration, Re, temperature, and chevron angle. The correlations for the fouling resistance, fouling period, and pressure drop ratio at the asymptotic state yield satisfactory predictions with mean absolute errors of 7.1%, 4.6%, and 2.0%, respectively. In addition, the sensitivities of the operating and geometrical parameters on the composite fouling characteristics are analyzed using modified regression coefficients.

Original language	English
Pages (from-to)	555-562
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	136
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2019.03.032
Publication status	Published - 2019 Jun

Bibliographical note

Funding Information:
This work was supported by the Industrial Core Technology Development Program (No. 10049090) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government.

Funding Information:
This work was supported by the Industrial Core Technology Development Program (No. 10049090 ) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government .

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

Asymptotic fouling period
Asymptotic fouling resistance
Asymptotic pressure drop ratio
Composite fouling (CaCO/CaSO)
Plate heat exchanger

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijheatmasstransfer.2019.03.032

Cite this

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title = "Composite fouling characteristics of CaCO3 and CaSO4 in plate heat exchangers at various operating and geometric conditions",

abstract = "In a water heating system, such as a district heating and hot water supply system, the composite fouling of CaCO3 and CaSO4 characterizes the actual usage environment. In this study, the composite fouling characteristics of CaCO3 and CaSO4 in plate heat exchangers were measured and analyzed at various concentrations, flow velocities, temperatures, and chevron angles. Moreover, based on the measured data, empirical correlations for the fouling resistance, fouling period, and pressure drop ratio at an asymptotic state, are developed as a function of concentration, Re, temperature, and chevron angle. The correlations for the fouling resistance, fouling period, and pressure drop ratio at the asymptotic state yield satisfactory predictions with mean absolute errors of 7.1%, 4.6%, and 2.0%, respectively. In addition, the sensitivities of the operating and geometrical parameters on the composite fouling characteristics are analyzed using modified regression coefficients.",

keywords = "Asymptotic fouling period, Asymptotic fouling resistance, Asymptotic pressure drop ratio, Composite fouling (CaCO/CaSO), Plate heat exchanger",

author = "Song, {Kang Sub} and Junyub Lim and Sungho Yun and Dongwoo Kim and Yongchan Kim",

note = "Funding Information: This work was supported by the Industrial Core Technology Development Program (No. 10049090) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government. Funding Information: This work was supported by the Industrial Core Technology Development Program (No. 10049090 ) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government . Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

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language = "English",

volume = "136",

pages = "555--562",

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AU - Song, Kang Sub

AU - Lim, Junyub

AU - Yun, Sungho

AU - Kim, Dongwoo

AU - Kim, Yongchan

N1 - Funding Information: This work was supported by the Industrial Core Technology Development Program (No. 10049090) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government. Funding Information: This work was supported by the Industrial Core Technology Development Program (No. 10049090 ) of the Korean Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry, and Energy, of the Korean Government . Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/6

Y1 - 2019/6

N2 - In a water heating system, such as a district heating and hot water supply system, the composite fouling of CaCO3 and CaSO4 characterizes the actual usage environment. In this study, the composite fouling characteristics of CaCO3 and CaSO4 in plate heat exchangers were measured and analyzed at various concentrations, flow velocities, temperatures, and chevron angles. Moreover, based on the measured data, empirical correlations for the fouling resistance, fouling period, and pressure drop ratio at an asymptotic state, are developed as a function of concentration, Re, temperature, and chevron angle. The correlations for the fouling resistance, fouling period, and pressure drop ratio at the asymptotic state yield satisfactory predictions with mean absolute errors of 7.1%, 4.6%, and 2.0%, respectively. In addition, the sensitivities of the operating and geometrical parameters on the composite fouling characteristics are analyzed using modified regression coefficients.

AB - In a water heating system, such as a district heating and hot water supply system, the composite fouling of CaCO3 and CaSO4 characterizes the actual usage environment. In this study, the composite fouling characteristics of CaCO3 and CaSO4 in plate heat exchangers were measured and analyzed at various concentrations, flow velocities, temperatures, and chevron angles. Moreover, based on the measured data, empirical correlations for the fouling resistance, fouling period, and pressure drop ratio at an asymptotic state, are developed as a function of concentration, Re, temperature, and chevron angle. The correlations for the fouling resistance, fouling period, and pressure drop ratio at the asymptotic state yield satisfactory predictions with mean absolute errors of 7.1%, 4.6%, and 2.0%, respectively. In addition, the sensitivities of the operating and geometrical parameters on the composite fouling characteristics are analyzed using modified regression coefficients.

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