Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks

Cheng En Liu, Jiin-Yuh Jang, Ta Sung Huang, Pai Hsiang Wang, Chun Da Chen

Research output: Contribution to conferencePaper

Abstract

Flow field and thermal-hydraulic characteristics for outside tubes of a recuperator were studied numerically and experimentally. Calculations are carried out for an in-line tube bank up to four rows deep under the conditions of uniform tube wall temperature. Fluid flow is incompressible, two-dimensional and turbulent. The radiation effect was considered between the tube wall and the working fluid for evaluating the outside performance. Because of high emissivity which the tube wall and exhaust gas had, radiant heat transfer was not negligible in this study. Streamline, isothermal lines through the whole tube bank, local and average Nusselt numbers, and friction factor are presented. The numerical results of Nusselt numbers show that the radiant heat transfer can run up to about 28% of the whole heat transfer. The numerical result is in good agreement with the experimental data within 5%.

Original languageEnglish
Publication statusPublished - 2007 Dec 1
Event9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology" - Bangkok, Thailand
Duration: 2007 Nov 222007 Nov 23

Other

Other9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology"
CountryThailand
CityBangkok
Period07-11-2207-11-23

Fingerprint

Exhaust gases
Flow fields
Nusselt number
Heat transfer
Recuperators
Radiation effects
Temperature
Flow of fluids
Hydraulics
Friction
Fluids

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Liu, C. E., Jang, J-Y., Huang, T. S., Wang, P. H., & Chen, C. D. (2007). Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks. Paper presented at 9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology", Bangkok, Thailand.
Liu, Cheng En ; Jang, Jiin-Yuh ; Huang, Ta Sung ; Wang, Pai Hsiang ; Chen, Chun Da. / Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks. Paper presented at 9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology", Bangkok, Thailand.
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abstract = "Flow field and thermal-hydraulic characteristics for outside tubes of a recuperator were studied numerically and experimentally. Calculations are carried out for an in-line tube bank up to four rows deep under the conditions of uniform tube wall temperature. Fluid flow is incompressible, two-dimensional and turbulent. The radiation effect was considered between the tube wall and the working fluid for evaluating the outside performance. Because of high emissivity which the tube wall and exhaust gas had, radiant heat transfer was not negligible in this study. Streamline, isothermal lines through the whole tube bank, local and average Nusselt numbers, and friction factor are presented. The numerical results of Nusselt numbers show that the radiant heat transfer can run up to about 28{\%} of the whole heat transfer. The numerical result is in good agreement with the experimental data within 5{\%}.",
author = "Liu, {Cheng En} and Jiin-Yuh Jang and Huang, {Ta Sung} and Wang, {Pai Hsiang} and Chen, {Chun Da}",
year = "2007",
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Liu, CE, Jang, J-Y, Huang, TS, Wang, PH & Chen, CD 2007, 'Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks', Paper presented at 9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology", Bangkok, Thailand, 07-11-22 - 07-11-23.

Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks. / Liu, Cheng En; Jang, Jiin-Yuh; Huang, Ta Sung; Wang, Pai Hsiang; Chen, Chun Da.

2007. Paper presented at 9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology", Bangkok, Thailand.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks

AU - Liu, Cheng En

AU - Jang, Jiin-Yuh

AU - Huang, Ta Sung

AU - Wang, Pai Hsiang

AU - Chen, Chun Da

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Flow field and thermal-hydraulic characteristics for outside tubes of a recuperator were studied numerically and experimentally. Calculations are carried out for an in-line tube bank up to four rows deep under the conditions of uniform tube wall temperature. Fluid flow is incompressible, two-dimensional and turbulent. The radiation effect was considered between the tube wall and the working fluid for evaluating the outside performance. Because of high emissivity which the tube wall and exhaust gas had, radiant heat transfer was not negligible in this study. Streamline, isothermal lines through the whole tube bank, local and average Nusselt numbers, and friction factor are presented. The numerical results of Nusselt numbers show that the radiant heat transfer can run up to about 28% of the whole heat transfer. The numerical result is in good agreement with the experimental data within 5%.

AB - Flow field and thermal-hydraulic characteristics for outside tubes of a recuperator were studied numerically and experimentally. Calculations are carried out for an in-line tube bank up to four rows deep under the conditions of uniform tube wall temperature. Fluid flow is incompressible, two-dimensional and turbulent. The radiation effect was considered between the tube wall and the working fluid for evaluating the outside performance. Because of high emissivity which the tube wall and exhaust gas had, radiant heat transfer was not negligible in this study. Streamline, isothermal lines through the whole tube bank, local and average Nusselt numbers, and friction factor are presented. The numerical results of Nusselt numbers show that the radiant heat transfer can run up to about 28% of the whole heat transfer. The numerical result is in good agreement with the experimental data within 5%.

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M3 - Paper

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Liu CE, Jang J-Y, Huang TS, Wang PH, Chen CD. Numerical and experimental studies of flow field and heat transfer for high temperature exhaust gas over in-line tube banks. 2007. Paper presented at 9th Asia Pacific Conference on the Built Environment 2007: "Sustainable HVAC and R Technology", Bangkok, Thailand.