Three-dimensional thermal-hydraulic analysis in slit finned-tube heat exchangers

Jiin-Yuh Jang, Jer Nan Yeh, Her Chang Ay

Research output: Contribution to journalConference article

Abstract

A numerical study of laminar flow and heat transfer over a two-row and three-dimensional slit fin and tube heat exchanger is presented. The effects of two different slit numbers Sn = 2 and 4 are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity) ranging from 160 to 900. The numerical results for the velocity field, fin surface Nusselt number, Colburn and fanning factor are shown. It is found that, both the average Nusselt number and pressure drop coefficient are increased as the slit number Sn is increased. A comparison of the numerical results with the available experimental data is also presented.

Original languageEnglish
Pages (from-to)315-322
Number of pages8
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume448
Issue number2
DOIs
Publication statusPublished - 2002 Oct 12
EventComputational technologies for Fluid/Thermal/Structural/Chemical Systems with Industrial Applications (2002 ASME Prssure Vessels and Piping Conference) - Vancouver, BC, Canada
Duration: 2002 Aug 52002 Aug 9

Fingerprint

Nusselt number
Hydraulics
Fins (heat exchange)
Tubes (components)
Laminar flow
Pressure drop
Reynolds number
Heat transfer
Hot Temperature
Heat exchangers--Finned tubes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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title = "Three-dimensional thermal-hydraulic analysis in slit finned-tube heat exchangers",
abstract = "A numerical study of laminar flow and heat transfer over a two-row and three-dimensional slit fin and tube heat exchanger is presented. The effects of two different slit numbers Sn = 2 and 4 are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity) ranging from 160 to 900. The numerical results for the velocity field, fin surface Nusselt number, Colburn and fanning factor are shown. It is found that, both the average Nusselt number and pressure drop coefficient are increased as the slit number Sn is increased. A comparison of the numerical results with the available experimental data is also presented.",
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Three-dimensional thermal-hydraulic analysis in slit finned-tube heat exchangers. / Jang, Jiin-Yuh; Yeh, Jer Nan; Ay, Her Chang.

In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 448, No. 2, 12.10.2002, p. 315-322.

Research output: Contribution to journalConference article

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AU - Jang, Jiin-Yuh

AU - Yeh, Jer Nan

AU - Ay, Her Chang

PY - 2002/10/12

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N2 - A numerical study of laminar flow and heat transfer over a two-row and three-dimensional slit fin and tube heat exchanger is presented. The effects of two different slit numbers Sn = 2 and 4 are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity) ranging from 160 to 900. The numerical results for the velocity field, fin surface Nusselt number, Colburn and fanning factor are shown. It is found that, both the average Nusselt number and pressure drop coefficient are increased as the slit number Sn is increased. A comparison of the numerical results with the available experimental data is also presented.

AB - A numerical study of laminar flow and heat transfer over a two-row and three-dimensional slit fin and tube heat exchanger is presented. The effects of two different slit numbers Sn = 2 and 4 are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity) ranging from 160 to 900. The numerical results for the velocity field, fin surface Nusselt number, Colburn and fanning factor are shown. It is found that, both the average Nusselt number and pressure drop coefficient are increased as the slit number Sn is increased. A comparison of the numerical results with the available experimental data is also presented.

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