The engine components are also cooled so the fuel doesn't boil to a gas in the lines that feed the engine. The thrust comes from the rapid expansion from liquid to gas with the gas emerging from the motor at very high speed. The energy needed to heat the fuels comes from burning them, once they are gasses. Cryogenic engines are the highest performing rocket motors. One disadvantage is that the fuel tanks tend to be bulky and require heavy insulation to store the propellant. Their high fuel efficiency, however, outweighs this disadvantage.
The Space Shuttle's main engines used for liftoff are cryogenic engines. The Shuttle's smaller thrusters for orbital manuvering use non-cyogenic hypergolic fuels, which are compact and are stored at warm temperatures. Currently, only the United States, Russia, China, France, Japan and India have mastered cryogenic rocket technology.
A cryogenic rocket engine
Rocket engine
Liquid hydrogen and liquid oxygen
More bounce per ounce of fuel..
- tempering remain a mystery to most people in industry.
A cryogenic engine is important because it will carry heavy payloads to geosynchronous transfer orbit. This is highly essential for future telecommunication and space exploration. It is able to carry up to five tons compared to the 1.5-ton payload capacity of PSLVs.
cryogenic metal treatment
Traditionally, rockets use cryogenic (super-cold) oxygen and hydrogen.
Any gas that liquifies below -150 degrees C is a cryogenic gas. The most popular cryogenic gas is liquid nitrogen.
cryogenic :)
A cryogenic freezer is used to bring components inside the freezer down to cryogenic temperatures. Many cryogenic freezers are available for all sorts of applications. Cold boxes with added ln2 capabilities can refrigerate parts and then complete cryogenic processing cycles. Additionally, cryo freezers are available to freeze sex cells, stems cells, and more. Sometimes people are frozen after death, which is called cryonics. I have added a site below that has cryogenic freezers and processors available.
I. Spradley has written: 'Integrated Cryogenic Experiment (ICE) microsphere investigation' -- subject(s): Insulation, Microgravity, Microparticles, Weightlessness, Liquid helium, Cryogenic equipment, Cryogenic storage