Loading...
Please wait, while we are loading the content...
Similar Documents
Lightweight carbon-carbon high-temperature space radiator
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miller, W. O. Shih, Wei |
| Copyright Year | 2008 |
| Description | A document summarizes the development of a carbon-carbon composite radiator for dissipating waste heat from a spacecraft nuclear reactor. The radiator is to be bonded to metal heat pipes and to operate in conjunction with them at a temperature approximately between 500 and 1,000 K. A goal of this development is to reduce the average areal mass density of a radiator to about 2 kg/m(exp 2) from the current value of approximately 10 kg/m(exp 2) characteristic of spacecraft radiators made largely of metals. Accomplishments thus far include: (1) bonding of metal tubes to carbon-carbon material by a carbonization process that includes heating to a temperature of 620 C; (2) verification of the thermal and mechanical integrity of the bonds through pressure-cycling, axial-shear, and bending tests; and (3) construction and testing of two prototype heat-pipe/carbon-carbon-radiator units having different radiator areas, numbers of heat pipes, and areal mass densities. On the basis of the results achieved thus far, it is estimated that optimization of design could yield an areal mass density of 2.2 kg/m (exp 2) close to the goal of 2 kg/m(exp 2). |
| File Size | 107494 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080048181 |
| Archival Resource Key | ark:/13960/t9t200590 |
| Language | English |
| Publisher Date | 2008-09-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Carbon-carbon Composites Cooling Nuclear Propulsion Spacecraft Radiators Prototypes Weight Reduction Nuclear Reactors Research and Development Space Power Reactors Design Optimization Spacecraft Propulsion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
