The pulse tube refrigerator (PTR) or pulse tube cryocooler is a developing technology that emerged largely in the early 1980s with a series of other innovations in the broader field of thermoacoustics. In contrast with other cryocoolers (e.g. Stirling cryocooler and Gifford-McMahon cooler), this cryocooler can be made without moving parts in the low temperature part of the device, making the cooler suitable for a wide variety of applications.
Read more about Pulse Tube Refrigerator: Uses, Description, How It Operates, Performance, Comparison With Other Coolers, History, Types of Pulse-tube Refrigerators, Prospects, See Also
Famous quotes containing the words pulse, tube and/or refrigerator:
“My pulse as yours doth temperately keep time,
And makes as healthful music. It is not madness
That I have uttered.”
—William Shakespeare (1564–1616)
“Even crushed against his brother in the Tube the average Englishman pretends desperately that he is alone.”
—Germaine Greer (b. 1939)
“I hate to do what everybody else is doing. Why, only last week, on Fifth Avenue and some cross streets, I noticed that every feminine citizen of these United States wore an artificial posy on her coat or gown. I came home and ripped off every one of the really lovely refrigerator blossoms that were sewn on my own bodices.”
—Carolyn Wells (1862–1942)