The Thermal Protection System consisted of various materials applied externally to the outer structural skin of the Orbiter to passively maintain the skin within acceptable temperatures, primarily during the re-entry phase of the mission.
How is thermal protection provided?
Thermal protection is a method of fan motor protection that is activated when a motor operating at the rated voltage locks up for some reason with the power still being supplied. It uses a thermal relay inside the motor to break the circuit to the winding coil at a temperature below the level that would cause burning.
Does the thermal protection system protect from heat cold or both?
The Space Shuttle thermal protection system (TPS) is the barrier that protects the Space Shuttle Orbiter during the searing 1,650 °C (3,000 °F) heat of atmospheric reentry. A secondary goal is to protect from the heat and cold of space while on orbit.
What protects the space shuttle from heat?
Protecting the shuttle and the crew from such heat is very important. … They are made up of what is called a porous silicon material that is very light and extremely heat resistant. There are two main types of tiles, one a black-coated tile called HRSI for High-Temperature Reusable Surface Insulation tile.
What is the meaning of thermal protector?
Thermal protection is a method of detecting over-temperature conditions and disconnecting the power to the electronic circuits. The protection prevents fires or damage to electronics components, which may arise due to the excess heat in the power supplies or other equipment.
Why are heat shields black?
When the outer portion of a tile gets hot, the heat takes a long time to work its way down through the rest of the tile to the shuttle’s skin. … The tiles exposed to reentry temperatures of up to 2,300 degrees Fahrenheit, such as those on portions of the belly, are given a protective coating of black glass.
How many tiles cover the shuttle?
Each shuttle has more than 21,000 lightweight tiles that are very effective at throwing off intense heat very, very quickly.
Does shuttle use power to land after re-entry?
The figure shows the Shuttle after it has passed through the re-entry regime. The Shuttle uses a rocket propulsion system to get into orbit, but during re-entry the aircraft is actually an un-powered glider.
What metal is best for a heat shield?
In applications such as space flight or balloon-borne instruments, where weight is a primary concern, aluminum heat shields are favored. While copper and aluminum both have high thermal conductivities, copper has traditionally been favored because of the ease of joining copper to copper and copper to stainless steel.
Why is the space shuttle black and white?
High-temperature tiles used a black borosilicate glass coating and covered areas of the vehicle in which temperatures reached up to 2,300F. Low-temperature tiles contained a white coating with the proper optical properties needed in areas of the vehicle where temperatures reached up to 1,200F.