What is the thermal protection system made of?
Much of the shuttle was covered with LI-900 silica tiles, made from essentially very pure quartz sand. The insulation prevented heat transfer to the underlying orbiter aluminium skin and structure. These tiles were such poor heat conductors that one could hold one by the edges while it was still red hot.
What does thermal protection system do?
The Thermal Protection System was designed to provide a smooth, aerodynamic surface while protecting the underlying metal structure from excessive temperature. During this phase, the Thermal Protection System materials protected the Orbiter’s outer skin from exceeding temperatures of 176°C (350°F).
What are the panels on the space shuttle made of?
They are light gray and made entirely of carbon composite material. The molded components are approximately 0.25-inch to 0.5-inch thick. During fabrication, the RCC panels are treated so they are resistant to oxidation and covered with a silicon carbide coating and a final coating of a glass sealant.
How hot is the space shuttle on re-entry?
2691° F
It converts to heat (from friction) caused by the atmosphere’s molecules striking its leading edges. This heat makes the Shuttle’s surfaces reach temperatures of up to 1477° C (2691° F). We must design the re-entry trajectory, and the vehicle, to withstand these high temperatures.
What fabric is heat resistant?
Coated fabrics are a common heat resistant fabric that are used in many industries. These fabrics are often used for protection purposes as they block the heat. Typical coatings include neoprene, silicone, ceramic, and refractory.
How are thermal protection systems used in space shuttles?
It would then re-enter the atmosphere of the Earth and glide back down to the ground. In order to withstand the high temperatures associated with re-entry, NASA created the Space Shuttle Orbiter Thermal Protection System (TPS).
Which is the most common passive thermal control element on spacecraft?
Multilayer insulation (MLI) is the most common passive thermal control element used on spacecraft. MLI prevents both heat losses to the environment and excessive heating from the environment.
What are the disadvantages of thermal control on spacecraft?
The main disadvantage of coating is that it degrades quickly due to the operating environment. Multilayer insulation (MLI) is the most common passive thermal control element used on spacecrafts. MLI prevent both heat losses to the environment and excessive heating from the environment.
What kind of tiles are used in space shuttles?
The tiles used were based on work carried out by the Lockheed Missiles & Space Company who had a patent disclosure which described a reusable insulating tile made from ceramic fibers which could be used during re-entry as a guard against high temperatures.