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Sublimator Driven Coldplate Engineering Development Unit Test Results and Development of Second Generation SDCThe Sublimator Driven Coldplate (SDC) is a unique piece of thermal control hardware that has several advantages over a traditional thermal control scheme. The principal advantage is the possible elimination of a pumped fluid loop, potentially increasing reliability and reducing complexity while saving both mass and power. Furthermore, the Integrated Sublimator Driven Coldplate (ISDC) concept couples a coolant loop with the previously described SDC hardware. This combination allows the SDC to be used as a traditional coldplate during long mission phases. The previously developed SDC technology cannot be used for long mission phases due to the fact that it requires a consumable feedwater for heat rejection. Adding a coolant loop also provides for dissimilar redundancy on the Altair Lander ascent module thermal control system, which is the target application for this technology. Tests were performed on an Engineering Development Unit at NASA s Johnson Space Center to quantify and assess the performance of the SDC. Correlated thermal math models were developed to help explain the test data. The paper also outlines the preliminary results of an ISDC concept being developed.
Document ID
Document Type
Conference Paper
Stephan, Ryan A. (NASA Johnson Space Center Houston, TX, United States)
Sheth, Rubik B. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Fluid Mechanics and Thermodynamics
Report/Patent Number
Meeting Information
40th International Conference on Environmental Systems(Barcelona)
Funding Number(s)
WBS: WBS 119103.01.01
Distribution Limits
Work of the US Gov. Public Use Permitted.