How Do Satellites Orbit The Earth : Différence entre versions

De Transcription | Bibliothèque patrimoniale numérique Mines ParisTech
Aller à : navigation, rechercher
m
m
 
(2 révisions intermédiaires par 2 utilisateurs non affichées)
Ligne 1 : Ligne 1 :
<br>In its nearly 30-yr history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of profitable missions­, [https://myhomemypleasure.co.uk/wiki/index.php?title=This_Portable_Electric_Heater_Is_Only_27_Today_Was_60 Alpha Heater online store] leading to immeasurable scientific beneficial properties. But this success has had a critical cost. In 1986, the Challenger exploded throughout launch. In 2003,  [http://classicalmusicmp3freedownload.com/ja/index.php?title=Havana_800W_Infrared_Patio_Heater alpha heater reviews] the Columbia broke up during re-entry over Texas. Because the Columbia accident, the shuttles have been grounded pending redesigns to improve their safety. The 2005 shuttle Discovery was imagined to provoke the return to flight, [http://www.xn--2s2b270b.com/bbs/board.php?bo_table=free&wr_id=304553 Alpha Heater online store] however a big piece of insulating foam broke free from its external fuel tank, leaving scientists to unravel the thriller and this system grounded as soon as extra till July 2006, when the discovery and Atlantis each carried out successful missions. In this article, we study the monumental technology behind America's shuttle program, the mission it was designed to carry out, and the extraordinary efforts that NASA has made to return the shuttle to flight.<br><br><br><br>The space shuttle flight path. The house shuttle flight path. Mouse over the containers to see the levels. A typical shuttle mission lasts seven to eight days, but can prolong to as a lot as 14 days relying upon the goals of the mission. Let's look on the stages of a mission one after the other. The Hubble Space Telescope uses a system of cameras and mirrors to detect distant star mild. Let's take a look at these elements closely. In addition,  [http://www.infinitymugenteam.com:80/infinity.wiki/mediawiki2/index.php/Comparing_The_Highest_12V_Heaters_At_Halfords:_Which_One_Is_Right_For_You Alpha Heater online store] the SRBs help all the weight of the house shuttle orbiter and gasoline tank on the launch pad. Because the SRBs are strong rocket engines, once they are ignited, they can't be shut down. Therefore, they're the final part to gentle at launch. The orbiter has three primary engines located in the aft (again) fuselage (physique of the spacecraft). Each engine is 14 feet (4.3 m) lengthy, 7.5 toes (2. Three m) in diameter at its widest level (the nozzle) and weighs about 6,700 lb (3039 kg).<br> <br><br><br>The main engines provide the remainder of the thrust (29 %) to elevate the shuttle off the pad and into orbit. The engines burn liquid hydrogen and [https://git.rikkei.edu.vn/derickdutton14/derick2008/-/issues/9 energy saving heater] liquid oxygen, that are stored in the external gasoline tank (ET), at a ratio of 6:1. They draw liquid hydrogen and oxygen from the ET at a tremendous fee, equal to emptying a household swimming pool every 10 seconds! The gasoline is partially burned in a pre-chamber to produce high pressure, sizzling gases that drive the turbo-pumps (fuel pumps). The gasoline is then absolutely burned in the main combustion chamber and the exhaust gases (water vapor) leave the nozzle at approximately 6,000 mph (10,000 km/h). Each engine can generate between 375,000 and 470,000 lb (1,668,083 to 2,090,664 N) of thrust; the rate of thrust might be controlled from 65 % to 109 p.c maximum thrust. As mentioned above, the gas for [https://scientific-programs.science/wiki/Best_Garage_Heaters_For_2025 Alpha Heater online store] the main engines is saved within the ET.<br><br><br><br>The ET is 158 ft (48 m) lengthy and [http://juicy.iptime.org/board_XAde14/1093921 alpha heater discount] [https://flynonrev.com/airlines/index.php/Portable_Gas_Heaters_And_Gas_Bottles_At_Guaranteed_Low_Prices alpha heater price] reviews has a diameter of 27.6 ft (8.4 m). When empty, the ET weighs 78,000 lb (35,455 kg). It holds about 1.6 million lb (719,000 kg) of propellant with a complete volume of about 526,000 gallons (2 million liters). The ET is product of aluminum and aluminum composite supplies. It has two separate tanks inside, [https://covid-wiki.info/index.php?title=This_Is_Due_To_Their_Size Alpha Heater online store] the ahead tank for [http://106.14.159.31:3000/carmelalonzo78/alpha-heater-online-store7555/wiki/Here%E2%80%99s-how-it-Really-Works Alpha Heater online store] oxygen and the aft tank for hydrogen, separated by an intertank region. Each tank has baffles to dampen the motion of fluid inside. Fluid flows from each tank by a 17-inch (forty three cm) diameter feed line out of the ET via an umbilical line into the shuttle's essential engines. Through these traces, oxygen can movement at a most price of 17,600 gallons/min (66,600 l/min) and [http://www.infinitymugenteam.com:80/infinity.wiki/mediawiki2/index.php/LDmicro:_Ladder_Logic_For_PIC_And_AVR Alpha Heater online store] hydrogen can flow at a most fee of 47,400 gallons/min (179,000 l/min). The ET is lined with a 1-inch (2.5 cm) thick layer of spray-on, polyisocyanurate foam insulation. The insulation retains the fuels cold, protects the fuel from heat that builds up on the ET skin in flight, and minimizes ice formation.<br>
+
<br>In its nearly 30-year history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions­, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the Challenger exploded during launch. In 2003, the Columbia broke up during re-entry over Texas. Since the Columbia accident,  [http://cheongchunplant-as.com/bbs/board.php?bo_table=free&wr_id=345459 cheongchunplant-as.com] the shuttles have been grounded pending redesigns to improve their safety. The 2005 shuttle Discovery was supposed to initiate the return to flight, but a large piece of insulating foam broke free from its external fuel tank, leaving scientists to solve the mystery and the program grounded once more until July 2006, when the Discovery and Atlantis both carried out successful missions. In this article, we examine the monumental technology behind America's shuttle program, the mission it was designed to carry out, and the extraordinary efforts that NASA has made to return the shuttle to flight. The space shuttle flight path.<br><br><br><br>The space shuttle flight path. Mouse over the boxes to see the stages. A typical shuttle mission lasts seven to eight days, but can extend to as much as 14 days depending upon the objectives of the mission. Let's look at the stages of a mission one by one. The Hubble Space Telescope uses a system of cameras and mirrors to detect distant star light. Let's look at these components closely. In addition,  [http://chal.org/?URL=zqz5.com%2Fpercyd66103685 www.PrimeBoosts.com] the SRBs support the entire weight of the space shuttle orbiter and fuel tank on the launch pad. Because the SRBs are solid rocket engines, once they are ignited, they cannot be shut down. Therefore, they are the last component to light at launch. The orbiter has three main engines located in the aft (back) fuselage (body of the spacecraft). Each engine is 14 feet (4.3 m) long, 7.5 feet (2. 3 m) in diameter at its widest point (the nozzle) and weighs about 6,700 lb (3039 kg).<br><br><br><br>The main engines provide the remainder of the thrust (29 percent) to lift the shuttle off the pad and into orbit. The engines burn liquid hydrogen and liquid oxygen, which are stored in the external fuel tank (ET), at a ratio of 6:1. They draw liquid hydrogen and oxygen from the ET at an amazing rate, equivalent to emptying a family swimming pool every 10 seconds! The fuel is partially burned in a pre-chamber to produce high pressure, hot gases that drive the turbo-pumps (fuel pumps). The fuel is then fully burned in the main combustion chamber and the exhaust gases (water vapor) leave the nozzle at approximately 6,000 mph (10,000 km/h). Each engine can generate between 375,000 and 470,000 lb (1,668,083 to 2,090,664 N) of thrust; the rate of thrust can be controlled from 65 percent to 109 percent maximum thrust. As mentioned above, the fuel for the main engines is stored in the ET. The ET is 158 ft (48 m) long and has a diameter of 27.6 ft (8.4 m).<br><br><br><br>When empty, the ET weighs 78,000 lb (35,455 kg). It holds about 1.6 million lb (719,000 kg) of propellant with a total volume of about 526,000 gallons (2 million liters). The ET is made of aluminum and aluminum composite materials. It has two separate tanks inside, the forward tank for oxygen and the aft tank for hydrogen, separated by an intertank region. Each tank has baffles to dampen the motion of fluid inside. Fluid flows from each tank through a 17-inch (43 cm) diameter feed line out of the ET through an umbilical line into the shuttle's main engines. Through these lines, oxygen can flow at a maximum rate of 17,600 gallons/min (66,600 l/min) and hydrogen can flow at a maximum rate of 47,400 gallons/min (179,000 l/min). The ET is covered with a 1-inch (2.5 cm) thick layer of spray-on, polyisocyanurate foam insulation. The insulation keeps the fuels cold, protects the fuel from heat that builds up on the ET skin in flight, and minimizes ice formation.<br>

Version actuelle datée du 21 décembre 2025 à 20:52


In its nearly 30-year history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions­, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the Challenger exploded during launch. In 2003, the Columbia broke up during re-entry over Texas. Since the Columbia accident, cheongchunplant-as.com the shuttles have been grounded pending redesigns to improve their safety. The 2005 shuttle Discovery was supposed to initiate the return to flight, but a large piece of insulating foam broke free from its external fuel tank, leaving scientists to solve the mystery and the program grounded once more until July 2006, when the Discovery and Atlantis both carried out successful missions. In this article, we examine the monumental technology behind America's shuttle program, the mission it was designed to carry out, and the extraordinary efforts that NASA has made to return the shuttle to flight. The space shuttle flight path.



The space shuttle flight path. Mouse over the boxes to see the stages. A typical shuttle mission lasts seven to eight days, but can extend to as much as 14 days depending upon the objectives of the mission. Let's look at the stages of a mission one by one. The Hubble Space Telescope uses a system of cameras and mirrors to detect distant star light. Let's look at these components closely. In addition, www.PrimeBoosts.com the SRBs support the entire weight of the space shuttle orbiter and fuel tank on the launch pad. Because the SRBs are solid rocket engines, once they are ignited, they cannot be shut down. Therefore, they are the last component to light at launch. The orbiter has three main engines located in the aft (back) fuselage (body of the spacecraft). Each engine is 14 feet (4.3 m) long, 7.5 feet (2. 3 m) in diameter at its widest point (the nozzle) and weighs about 6,700 lb (3039 kg).



The main engines provide the remainder of the thrust (29 percent) to lift the shuttle off the pad and into orbit. The engines burn liquid hydrogen and liquid oxygen, which are stored in the external fuel tank (ET), at a ratio of 6:1. They draw liquid hydrogen and oxygen from the ET at an amazing rate, equivalent to emptying a family swimming pool every 10 seconds! The fuel is partially burned in a pre-chamber to produce high pressure, hot gases that drive the turbo-pumps (fuel pumps). The fuel is then fully burned in the main combustion chamber and the exhaust gases (water vapor) leave the nozzle at approximately 6,000 mph (10,000 km/h). Each engine can generate between 375,000 and 470,000 lb (1,668,083 to 2,090,664 N) of thrust; the rate of thrust can be controlled from 65 percent to 109 percent maximum thrust. As mentioned above, the fuel for the main engines is stored in the ET. The ET is 158 ft (48 m) long and has a diameter of 27.6 ft (8.4 m).



When empty, the ET weighs 78,000 lb (35,455 kg). It holds about 1.6 million lb (719,000 kg) of propellant with a total volume of about 526,000 gallons (2 million liters). The ET is made of aluminum and aluminum composite materials. It has two separate tanks inside, the forward tank for oxygen and the aft tank for hydrogen, separated by an intertank region. Each tank has baffles to dampen the motion of fluid inside. Fluid flows from each tank through a 17-inch (43 cm) diameter feed line out of the ET through an umbilical line into the shuttle's main engines. Through these lines, oxygen can flow at a maximum rate of 17,600 gallons/min (66,600 l/min) and hydrogen can flow at a maximum rate of 47,400 gallons/min (179,000 l/min). The ET is covered with a 1-inch (2.5 cm) thick layer of spray-on, polyisocyanurate foam insulation. The insulation keeps the fuels cold, protects the fuel from heat that builds up on the ET skin in flight, and minimizes ice formation.