Analysis And Design Of Phase Change Thermal Control For Light Emitting Diode (led) Spacesuit Helmet Lights
by Nasa Technical Reports Server (ntrs)
2021-01-13 22:54:46
Analysis And Design Of Phase Change Thermal Control For Light Emitting Diode (led) Spacesuit Helmet Lights
by Nasa Technical Reports Server (ntrs)
2021-01-13 22:54:46
LED Helmet Extravehicular Activity Helmet Interchangeable Portable (LEHIP) lights for the Extravehicular Mobility Unit (EMU) have been built and tested and are currently being used on the International Space Station. A design is presented of the pass...
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LED Helmet Extravehicular Activity Helmet Interchangeable Portable (LEHIP) lights for the Extravehicular Mobility Unit (EMU) have been built and tested and are currently being used on the International Space Station. A design is presented of the passive thermal control system consisting of a chamber filled with aluminum foam and wax. A thermal math model of LEHIP was built and correlated by test to show that the thermal design maintains electronic components within hot and cold limits for a 7 hour spacewalk in the most extreme EVA average environments, and do not pose a hazard to the crew or to components of the EMU.
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