The paper presents the results of analysis, development and tests of an ammonia miniature loop heat pipe (MLHP) with a flat evaporator, which has an active-zone diameter of 30mm. The length and the diameter of the vapor and the liquid lines are 1m and 2/1.2mm. The device serviceability has been demonstrated at a horizontal and a vertical orientation in 1-g conditions. The maximum heat load achieved on trials was equal, respectively, to 160W and 120W, which corresponds to a heat flow in the evaporation zone of 23 W/cm2 and 17 W/cm2. The minimum thermal resistance at nominal heat loads from 40 to 80 W varied in the range from 0.42 W/m2K to 0.59 W/m2K. A comparison has been made with a model MLHP with a cylindrical evaporator equipped with a copper and aluminum “saddle”.


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    Titel :

    Development and Tests of Miniature Loop Heat Pipe with a Flat Evaporator


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Conference On Environmental Systems ; 2000



    Erscheinungsdatum :

    2000-07-10




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Thermal Characteristics of a Flat Evaporator Miniature Loop Heat Pipe

    Santos, Nadjara dos / Riehl, Roger R. | SAE Technical Papers | 2007


    Modeling of a Miniature Loop Heat Pipe with a Flat Evaporator

    Delil, A.A.M. / Gorbenko, G. / Gakal, P. et al. | SAE Technical Papers | 2002


    Multiple Flat Plate Evaporator Loop Heat Pipe Demonstration

    Conroy, C. / Mahorter, Robert / Savchik, John et al. | AIAA | 2003


    Heat and mass transfer in a flat disc-shaped evaporator of a miniature loop heat pipe

    Tu, Z K / Liu, Z C / Liu, C et al. | SAGE Publications | 2009