SIRTF thermal design modifications to increase lifetime

Computer Science – Performance

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Cryogenic Equipment, Life (Durability), Performance Prediction, Space Infrared Telescope Facility, Structural Design Criteria, Thermal Analysis, Cost Reduction, Gas Cooling, Radiative Heat Transfer, Steady State, Weight Reduction

Scientific paper

An effort was made to increase the predicted lifetime of the SIRTF dewar by lowering the exterior shell temperature, increasing the radiated energy from the vapor cooled shields and reconfiguring the vapor cooled shields. The lifetime increases can be used to increase the scientific return from the mission and as a trade-off against mass and cost. This paper describes the configurations studied, the steady state thermal model used, the analytical methods and the results of the analysis. Much of the heat input to the outside dewar shell is radiative heat transfer from the solar panel. To lower the shell temperature, radiative cooled shields were placed between the solar panel and the dewar shell and between the bus and the dewar shell. Analysis showed that placing a radiator on the outer vapor cooled shield had a significant effect on lifetime. Lengthening the distance between the outer shell and the point where the vapor cooled shields are attached to the support straps also improved lifetime.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

SIRTF thermal design modifications to increase lifetime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SIRTF thermal design modifications to increase lifetime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SIRTF thermal design modifications to increase lifetime will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1266111

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.