The objectives of @BUS High Performance Constant Conductance Heat Pipe project is to develop, design and test new high performance heat pipes (in the range 500 to 700 Wm) with a limited weight target and constant conductance performances.
The main requirements are the following:
With the improved transport capability and the reduced outer volume and weight, the HPCCHP will offer to the @Bus platform an improved weight to performance ratio. The result of this will be the possibility to increase the available equipment mass and volume onboard the platform.
The High Performance Heat Pipe is of constant conductance type with the envelope in aluminium alloy (6063 T6) and ammonia as working fluid, This heat pipe definition leads to a reliable configuration, well adapted to the requested operating temperature range.
The HPCCHP project plan is based on two main phases divided in major tasks such as concepts trade-offs, detailed design and test plan definition for the phase 1 followed by the manufacturing, test and qualification program definition through the phase 2 activities
The trade-off phase is about to be finalised with the selection of four possible candidates to be further designed through the detailed design task.