critical pressure


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

critical pressure

n.
The least applied pressure required at the critical temperature to liquefy a gas.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

critical pressure

n
(General Physics) the pressure of a gas or the saturated vapour pressure of a substance in its critical state
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?
References in periodicals archive ?
In fact, the containment cage stabilizes crack propagation above the critical pressure (at a given temperature) pc and therefore helps to define an unambiguous critical pressure.
When a refrigeration system is operating transcritically, heat rejection occurs above the critical pressure, while cooling takes place below the critical pressure.
Request of international offers from eligible bidders for the feeding water heaters package pertaining to South Helwan Power Station Project of super critical pressure type & of 650 x 3 MW Capacity.
Repeating the experiment at different levels of pressure determines at a given temperature the characteristic critical pressure beyond which the crack propagates over more than 90% of the pipe length.
S4 critical pressure tests at 0[degrees]C were performed by Chevron Phillips Chemical Company LP at their Research Center in Bartlesville, OK, in accordance with the ISO 13477 standard (2).
At the beginning of each process during which gas exchanges take place, the manifold pressure is determined as well as the critical pressure by aid of the following equations:
The critical pressure is the vapor pressure at the critical temperature.
* The capability to reveal critical pressure irregularities that can compromise designs.
In these equations [n.sub.i] is the number of times that a group appears in the molecule, [T.sub.b] is the normal boiling temperature, [DELTA][T.sub.L] is the contribution to the critical temperature, [DELTA][P.sub.L] is the contribution to the critical pressure, [DELTA][V.sub.L] is the contribution to the critical volume, M is the molecular mass, and [A.sub.L], [C.sub.L] and [E.sub.L] are constants.
By forcing the art world to change its traditional trajectories, these biennials brought about a new critical pressure on institutions like Venice and Documenta to renovate.
While Deauville has no market, no commercial or critical pressure, Lasserre sees the fest more and more as a setting in which Gallic distribs that are considering a given title resolve to seal the deal.
The tendency of the upper airway to collapse can be expressed quantitatively in terms of a critical pressure (Pcrit), which is the pressure surrounding the area of collapse.