The objective of this research is to experimentally investigate the transient operating characteristics of a titanium-water loop heat pipe subjected to a combined steady-state evaporator input heat rate and a steady-periodic acceleration field. For this experimental investigation, a steady-periodic acceleration field, in the form of a sine wave, was generated using a centrifuge table. Radial acceleration peak-to-peak values and frequency of the sine wave were defined prior to conducting each experimental run and ranged from 0.5 g a r 10.0 g and 0.01 Hz f 0.1 Hz , respectively. Evaporator input heat rate and condenser cold plate coolant temperature were varied, 300 W Q i n 600 W and 30 ° C T c p 56 ° C , respectively. In some cases, acceleration driven forces complimented the thermodynamic forces, improving loop heat pipe dynamical performance. However, the converse was also true in that transient acceleration driven forces also appeared to counter thermodynamic forces or excite natural frequencies of the loop heat pipe. This resulted in immediate failure of the loop heat pipe to operate, delayed failure, or in some cases, the loop heat pipe operated in a stable manner but in a degraded condition.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Steady-Periodic Acceleration Effects on the Performance of a Loop Heat Pipe


    Beteiligte:
    Yerkes, Kirk L. (Autor:in) / Scofield, James D. (Autor:in) / Courson, David L. (Autor:in) / Jiang, Hua (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2014-04-30


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch







    Steady State and Transient Loop Heat Pipe Modeling

    Cullimore, Brent / Baumann, Jane | SAE Technical Papers | 2000


    Progress on performance validation of a steady-state loop heat pipe model

    Page, Matthew / Brooks, Michael / Bemont, Clinton et al. | AIAA | 2012