Numerous studies have concluded that improved high power density cooling methods are required for future avionics due to the trends in increasing heat dissipation, device miniaturization and higher packaging density. A high flux heat exchanger (HFHE) has been designed to optimally meet the thermal performance and envelope requirements selected as appropriate for future avionics, at a minimum impact to the host aircraft. This paper summarizes the design and fabrication of the prototype HFHE. The HFHE has been successfully performance tested with results included in Part II of this paper.Design objectives for the HFHE included a local heat flux capability of 100 W/cm2 (at 20 one-cm2 sites), a total SEM-E size module heat load of 2,000 W, and a maximum device junction temperature of 90°C with PAO coolant at not less than 0°C. An aluminum frame coldplate with a laminated copper heat transfer insert was designed and fabricated which met all of these performance requirements. The coldplate uses multiple-plate/multiple-jet impingement cooling in a stack of thin photo-etched and diffusion bonded laminations for extremely low coldplate-to-coolant thermal resistance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A High Flux Heat Exchanger for Military Avionics Part I: Design and Fabrication


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Atlantic Conference & Exposition ; 1994



    Publication date :

    1994-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A High Flux Heat Exchanger for Military Avionics Part I: Design and Fabrication

    Downing, R. S. / Nguyen, D. C. / Bland, T. J. et al. | British Library Conference Proceedings | 1994


    A High Flux Heat Exchanger for Military Avionics Part II: Test Results

    Flynn, E. M. / Downing, R. S. / Nguyen, D. C. et al. | British Library Conference Proceedings | 1994


    A High Flux Heat Exchanger for Military Avionics Part II: Test Results

    Nguyen, Dam C. / Flynn, E. M. / Downing, R. Scott et al. | SAE Technical Papers | 1994


    AVIONICS HEAT EXCHANGER

    DARIAVACH NADER / ENGELHARDT MICHEL | European Patent Office | 2019

    Free access

    Avionics heat exchanger

    STORAGE MICHAEL RALPH / MCQUEEN DENNIS ALAN | European Patent Office | 2022

    Free access