TY  - JOUR
AV  - none
TI  - The influence of the moments of probability density function for flow maldistribution on the thermal performance of a fin-tube heat exchanger
SP  - 1942
N1  - cited By 20
SN  - 12900729
EP  - 1953
ID  - scholars1890
KW  - Air flow; Correlation equation; Degradation effect; Experimental data; Fin pattern; Fin pitch; Fin surface; Fin-tube heat exchangers; Flow maldistribution; Geometrical parameters; Internal thermal resistance; Maldistribution; Performance degradation; Quantitative study; Standard deviation; Statistical moments; Thermal Performance; Tube diameters; Tube pitch; Wavy fin
KW  -  Degradation; Fins (heat exchange); Heat exchangers; Mixed convection; Statistics; Tubes (components)
KW  -  Probability density function
N2  - The work presented in this paper reports the quantitative study on the influence of the statistical moments of probability density function, i.e., mean, standard deviation, skew and kurtosis, for an air flow maldistribution profile on the thermal performance of a fin-tube heat exchanger. The effects of the geometrical parameters of the heat exchanger, i.e., tube diameter, fin pitch, row pitch, tube pitch, number of rows and fin surface pattern, are also investigated. The thermal performance is found to be noticeably affected by mean, standard deviation and skew but not the kurtosis. In addition, the interaction between the external and internal thermal resistances has a significant effect. All the geometrical parameters examined, except for the number of rows and fin pattern, have either a weak or an insignificant effect on the thermal performance degradation factor. Physical reasoning has been provided to explain the trends of the degradation with respect to the moments and geometrical parameters. From these trends, a new set of correlation equations is proposed to predict the degradation effect of the flow maldistribution on wavy fins. The correlation agrees well with experimental data within ±10. © 2011 Elsevier Masson SAS. All rights reserved.
IS  - 10
Y1  - 2011///
VL  - 50
JF  - International Journal of Thermal Sciences
A1  - Chin, W.M.
A1  - Raghavan, V.R.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960442063&doi=10.1016%2fj.ijthermalsci.2011.04.014&partnerID=40&md5=53d5c657a601a15269155d85d4ac2b10
ER  -