Stability analysis of closed-loop thermosyphon system

Chi-Chuan Hwang, S. H. Yin, J. T. Teng, M. J. Tsai

Research output: Contribution to journalConference article

Abstract

The onset and oscillatory instabilities of natural convection flows in a single-phase rectangular closed-loop thermosyphon are investigated using the one-dimensional model. In this study the axial conduction term in the energy equation is included and it is found that the effect of axial conduction stabilizes the thermosyphon systems. The critical Grashof number of onset and oscillatory instabilities are found to increase with increasing the values of shape ratio. The range of the Grashof numbers evaluated from this study can provide essential information on the various parameters for the design of a thermosyphon system.

Original languageEnglish
Pages (from-to)381-388
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume107
Publication statusPublished - 1989 Dec 1
EventHeat Transfer in Convective Flows - Philadelphia, PA, USA
Duration: 1989 Aug 61989 Aug 9

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Thermosyphons
Grashof number
Natural convection

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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abstract = "The onset and oscillatory instabilities of natural convection flows in a single-phase rectangular closed-loop thermosyphon are investigated using the one-dimensional model. In this study the axial conduction term in the energy equation is included and it is found that the effect of axial conduction stabilizes the thermosyphon systems. The critical Grashof number of onset and oscillatory instabilities are found to increase with increasing the values of shape ratio. The range of the Grashof numbers evaluated from this study can provide essential information on the various parameters for the design of a thermosyphon system.",
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Stability analysis of closed-loop thermosyphon system. / Hwang, Chi-Chuan; Yin, S. H.; Teng, J. T.; Tsai, M. J.

In: American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, Vol. 107, 01.12.1989, p. 381-388.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Stability analysis of closed-loop thermosyphon system

AU - Hwang, Chi-Chuan

AU - Yin, S. H.

AU - Teng, J. T.

AU - Tsai, M. J.

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N2 - The onset and oscillatory instabilities of natural convection flows in a single-phase rectangular closed-loop thermosyphon are investigated using the one-dimensional model. In this study the axial conduction term in the energy equation is included and it is found that the effect of axial conduction stabilizes the thermosyphon systems. The critical Grashof number of onset and oscillatory instabilities are found to increase with increasing the values of shape ratio. The range of the Grashof numbers evaluated from this study can provide essential information on the various parameters for the design of a thermosyphon system.

AB - The onset and oscillatory instabilities of natural convection flows in a single-phase rectangular closed-loop thermosyphon are investigated using the one-dimensional model. In this study the axial conduction term in the energy equation is included and it is found that the effect of axial conduction stabilizes the thermosyphon systems. The critical Grashof number of onset and oscillatory instabilities are found to increase with increasing the values of shape ratio. The range of the Grashof numbers evaluated from this study can provide essential information on the various parameters for the design of a thermosyphon system.

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