Frost growth characteristics of spirally-coiled circular fin-tube heat exchangers under frosting conditions

Sang Hun Lee; Mooyeon Lee; Won Jae Yoon; Yongchan Kim

doi:10.1016/j.ijheatmasstransfer.2013.04.018

Frost growth characteristics of spirally-coiled circular fin-tube heat exchangers under frosting conditions

Sang Hun Lee, Mooyeon Lee, Won Jae Yoon, Yongchan Kim

School of Mechanical Engineering

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

17 Citations (Scopus)

Abstract

The objective of this study is to investigate frost formation and growth in a spirally-coiled circular fin-tube heat exchanger. The frost thickness and growth rate were measured in the transverse and circumferential directions by varying the relative humidity (or humidity ratio), air flow rate, inlet air temperature, and fin pitch. The frost thickness was affected primarily by the relative humidity, inlet air temperature, and air flow rate. The relative humidity showed a dominant effect on the frost growth among all parameters tested. An empirical correlation for the frost thickness was developed for the spirally-coiled circular fin-tube heat exchanger as a function of the Reynolds number, Fourier number, humidity ratio, and dimensionless temperature. The mean and average deviations of the predictions using the present correlation from the measured data were 4.32% and 3.96%, respectively.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	64
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2013.04.018
Publication status	Published - 2013

Keywords

Correlation
Frost
Growth
Heat exchanger
Heat transfer

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/j.ijheatmasstransfer.2013.04.018

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title = "Frost growth characteristics of spirally-coiled circular fin-tube heat exchangers under frosting conditions",

abstract = "The objective of this study is to investigate frost formation and growth in a spirally-coiled circular fin-tube heat exchanger. The frost thickness and growth rate were measured in the transverse and circumferential directions by varying the relative humidity (or humidity ratio), air flow rate, inlet air temperature, and fin pitch. The frost thickness was affected primarily by the relative humidity, inlet air temperature, and air flow rate. The relative humidity showed a dominant effect on the frost growth among all parameters tested. An empirical correlation for the frost thickness was developed for the spirally-coiled circular fin-tube heat exchanger as a function of the Reynolds number, Fourier number, humidity ratio, and dimensionless temperature. The mean and average deviations of the predictions using the present correlation from the measured data were 4.32% and 3.96%, respectively.",

keywords = "Correlation, Frost, Growth, Heat exchanger, Heat transfer",

author = "Lee, {Sang Hun} and Mooyeon Lee and Yoon, {Won Jae} and Yongchan Kim",

note = "Funding Information: This work was supported by the Human Resources Development program (No. 20124010203250 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Korea government Ministry of Knowledge Economy, the Korean Evaluation Institute of Industrial Technology (No. 10035530), and a Korea University Grant. ",

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language = "English",

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AU - Lee, Sang Hun

AU - Lee, Mooyeon

AU - Yoon, Won Jae

AU - Kim, Yongchan

N1 - Funding Information: This work was supported by the Human Resources Development program (No. 20124010203250 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Korea government Ministry of Knowledge Economy, the Korean Evaluation Institute of Industrial Technology (No. 10035530), and a Korea University Grant.

PY - 2013

Y1 - 2013

N2 - The objective of this study is to investigate frost formation and growth in a spirally-coiled circular fin-tube heat exchanger. The frost thickness and growth rate were measured in the transverse and circumferential directions by varying the relative humidity (or humidity ratio), air flow rate, inlet air temperature, and fin pitch. The frost thickness was affected primarily by the relative humidity, inlet air temperature, and air flow rate. The relative humidity showed a dominant effect on the frost growth among all parameters tested. An empirical correlation for the frost thickness was developed for the spirally-coiled circular fin-tube heat exchanger as a function of the Reynolds number, Fourier number, humidity ratio, and dimensionless temperature. The mean and average deviations of the predictions using the present correlation from the measured data were 4.32% and 3.96%, respectively.

AB - The objective of this study is to investigate frost formation and growth in a spirally-coiled circular fin-tube heat exchanger. The frost thickness and growth rate were measured in the transverse and circumferential directions by varying the relative humidity (or humidity ratio), air flow rate, inlet air temperature, and fin pitch. The frost thickness was affected primarily by the relative humidity, inlet air temperature, and air flow rate. The relative humidity showed a dominant effect on the frost growth among all parameters tested. An empirical correlation for the frost thickness was developed for the spirally-coiled circular fin-tube heat exchanger as a function of the Reynolds number, Fourier number, humidity ratio, and dimensionless temperature. The mean and average deviations of the predictions using the present correlation from the measured data were 4.32% and 3.96%, respectively.

KW - Correlation

KW - Frost

KW - Growth

KW - Heat exchanger

KW - Heat transfer

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DO - 10.1016/j.ijheatmasstransfer.2013.04.018

M3 - Article

AN - SCOPUS:84876934229

SN - 0017-9310

VL - 64

SP - 1

EP - 9

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

ER -

Frost growth characteristics of spirally-coiled circular fin-tube heat exchangers under frosting conditions

Abstract

Keywords

ASJC Scopus subject areas

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