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Cryogenics is the freezing of live tissue or whole living organisms in order to defrost and bring them back to life at a later date. There are diseases that cannot be cured today and there is a theory about where some one may one day be kept on ice so to speak, while medical science works out how to cure the illness.
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Why cryogenic fluid is superior to any other cooling fluid in powered equipments?
due to the high heat generation in powered equipments there is requirement of maintaining the properties of fluid at high temperature hence cryogenic material have better properties.
How does temperature change E for steels?
Going cold, not very much - it may get a 2% higher at cryogenic temps. Going warn, it does decrease by up to 20% as you get to 1000 degrees F ( from 30 Msi to 24 Msi)
Why is a cryogenic engine important?
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.
What is cryogenic deflashing?
Cryogenic deflashing is a form of deflashing used to remove any excess plastic from parts that are molded. As molds wear and age they develop places where flash can occur. Typical areas for flash are along the part including parting lines and edges. Flash can be removed using various deflashing methods. Cryogenic deflashing utilizes batch processing to remove flash from parts. If thousands of parts are molded at a time and exhibit flash, then they can be processed quite quickly. Parts are processed in a cryogenic deflashing machine that lowers temperatures and shoots media. The lower temperatures allow the flash to freeze and become heavy. Then media is shot at the parts which takes off the flash. Normal cycles are less than 30 minutes. Cryogenic deflashing offers repeatable results again and again. The surface of the parts are not destroyed or discolored. The only thing that is removed is the flash. Cryogenic deflashing is great for rubber, silicone, various plastics, and some metals. It is also is a cheaper process due to its speed of execution and lot sizes. I have been working with cryogenic deflashing equipment for several years and I can say that they are one of the most cost-effective ways to deflash any part.
How does cryogenic machining work?
Cryogenic machining means cooling down the cutting tool with liquid carbon dioxide or nitrogen to very low temperatures ( -78,5°C or -109,3°F and below). This enables a clean production process without conventional cutting fluid that is hazardous to both the environment and to health.
What is cryogenic temperature?
It is a temperature (below −150 °C, −238 °F or 123 K).
What are the advantages of cryogenic fluids over other cooling fluids?
cryogenic fluids are - degree temperature means below -4degree Celsius up to -184degree Celsius but in ordinary cooling fluid doesn't having that much of lower temperature
Explian about cryogenic hardening?
Cryogenic hardening is often referred to cryogenic treatment and cryogenic processing. Using the term "hardening" is not correct. Cryogenic treatment does not increase the hardness of metals (I.E. rockwell hardness). Rather it changes metals on the molecular level so that they perform better. Cryogenic treatment is used for a variety of reasons including improving dimensional stability, stress relieving, increasing wear resistance, and eliminating walk and creep. A typical cryogenic treatment lasts for several days. Metal and steel parts will be put in a cryogenic processor at room temperature. The temperature will slowly be taken down to -300F below. Then it will hold there for 12 to 24 hours depending on the company doing the treatment. After that, the processor will have the temperature raised back to room temperature very slowly. Finally, the parts will be post-tempered to finalize the cryogenic treatment. Cryogenic treatment re-aligns the micro-structure of the metal to improve its structural stability. Retained austenite will be converted to martensite which allows for a tougher piece of metal. The eta-carbides in the metal will become precipitated which allows for a much higher degree of wear resistance. Below are some good sites for additional reference...
Can helium be turned into ice?
No, helium will turn into a cryogenic 'liquid' not ice, as it is cooled to extremely low temperature's.
What has the author Richard L Patterson written?
Richard L. Patterson has written: 'Evaluation of capacitors at cryogenic temperatures for space applications' -- subject(s): Aerospace environments, Capacitors, Cryogenic temperature, Deep space, Dielectrics, Mica, Space temperature, Tantalum, Weight reduction
What is cryogenic vessel?
Vacuum Insulated Cryogenic Storage Tanks and Cold Converter tanks are double walled tanks designed for efficient storage of LOX, LIN, LAR, LNG, LCO and other Cryogenic Liquids. for more information visit: cryogasindia
What is cryogenic heat treatment?
cryogenic metal treatment
Why cryogenic fluid is superior to any other cooling fluid in powered equipments?
due to the high heat generation in powered equipments there is requirement of maintaining the properties of fluid at high temperature hence cryogenic material have better properties.
What causes leakages in cryogenic and how can they be avoided?
Cryogenic what? Cryogenic generally means liquid nitrogen temperature or below (77K or -196C). Most metals contract as they cool this can cause gaps to open up causing leaks. Any rubber seals, such as o-rings would bring hard and brittle as they cool, this stops them from making a seal also causing leakages.
What are the some example of cryogenic gases?
Any gas that liquifies below -150 degrees C is a cryogenic gas. The most popular cryogenic gas is liquid nitrogen.
What has the author David W Plachta written?
David W. Plachta has written: 'Hybrid thermal control testing of a cryogenic propellant tank' -- subject(s): Temperature control, Cryogenic fluid storage, Storage tanks, Spherical tanks, Multilayer insulation, Propellant storage, Thermal insulation
What is the normal phase for the element neon?
Neon, an inert gas, is a gas at non-cryogenic temperatures. A link is provided to the Wikipedia article on neon.
