Speakers
Description
WIVERN (WInd VElocity Radar Nephoscope) is an Earth Explorer 11 candidate mission currently in Phase A. The thermal design of the payload module (PLM) is challenging due to the combination of high solar fluxes and rotation rates of the PLM combined with accommodation constraints placing high dissipating components at the centre of spin. To resolve this the proposed design relies on a large sun-shield to reduce incoming fluxes and a loop heat pipe (LHP) to work against the centrifugal forces. The correct functioning of the LHP in the rotating environment is a mission critical technology and therefore a BB test was performed comparing the LHP performance at 0rpm and 15rpm.
This submission will describe the overall PLM thermal design concept and preliminary LHP design performed by OHB and the design, manufacturing and testing of the breadboard by Euro Heat Pipes (EHP).
