Microtube array space radiator

摘要

The MTS radiator consists of planar arrays of micro-tube strip modules, each of which contain two or three rows of about 200 properly spaced microtubes per row. The three-dimensional tubular titanium structure with support members between microtubes maximizes stiffness and strength per mass. The working fluid-typically hydrogen at 0.1 to 1 MPa-circulates through the microtubes, and most of the radiation occurs from their walls, which are only 0.2 to 0.4 mm thick. This allows specific mass below 1 kg/m2. The operating temperature range is typically 200-650 K. The radiator's radiating surface comprises a heavily oxidized, metal alloy with a corrosion resistant, refractory alloy film deposited on it.