Comparison of experiments and 1-D steady-state model of a loop heat pipe

Po Ya Abel Chuang, John Michael Cimbala, Jack S. Brenizer, C. Thomas Conroy, A. A. El-Ganayni, David R. Riley

Research output: Contribution to journalConference article

Abstract

A modern, effective, two-phase heat transfer device, a loop heat pipe (LHP), was studied analytically and experimentally. A 1-D steady-state model was developed based on energy balance equations. The mathematical modeling procedures of each component are explained in detail, including a model of the secondary wick in the evaporator. Other models neglect the existence of the secondary wick because the detailed designs of the secondary wick are often proprietary. Three sets of experiments were performed at different elevations. Results of experimental data are compared with 1-D steady-state model predictions. The comparisons show that the model predictions of steady state operating temperatures for both zero elevation and adverse elevation are within 2 percent. It has been clearly demonstrated that the 1-D steady-state model is a useful tool for future LHP study.

Original languageEnglish (US)
Pages (from-to)87-94
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume372
Issue number4
DOIs
StatePublished - Dec 1 2002
Event2002 ASME International Mechanical Engineering Congress and Exposition - New Orleans, LA, United States
Duration: Nov 17 2002Nov 22 2002

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Heat pipes
Experiments
Evaporators
Energy balance
Heat transfer

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Chuang, Po Ya Abel ; Cimbala, John Michael ; Brenizer, Jack S. ; Conroy, C. Thomas ; El-Ganayni, A. A. ; Riley, David R. / Comparison of experiments and 1-D steady-state model of a loop heat pipe. In: American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. 2002 ; Vol. 372, No. 4. pp. 87-94.
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abstract = "A modern, effective, two-phase heat transfer device, a loop heat pipe (LHP), was studied analytically and experimentally. A 1-D steady-state model was developed based on energy balance equations. The mathematical modeling procedures of each component are explained in detail, including a model of the secondary wick in the evaporator. Other models neglect the existence of the secondary wick because the detailed designs of the secondary wick are often proprietary. Three sets of experiments were performed at different elevations. Results of experimental data are compared with 1-D steady-state model predictions. The comparisons show that the model predictions of steady state operating temperatures for both zero elevation and adverse elevation are within 2 percent. It has been clearly demonstrated that the 1-D steady-state model is a useful tool for future LHP study.",
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Comparison of experiments and 1-D steady-state model of a loop heat pipe. / Chuang, Po Ya Abel; Cimbala, John Michael; Brenizer, Jack S.; Conroy, C. Thomas; El-Ganayni, A. A.; Riley, David R.

In: American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, Vol. 372, No. 4, 01.12.2002, p. 87-94.

Research output: Contribution to journalConference article

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