pressurization


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pressurization

[‚presh·ə·rə′zā·shən]
(engineering)
Use of an inert gas or dry air, at several pounds above atmospheric pressure, inside the components of a radar system or in a sealed coaxial line, to prevent corrosion by keeping out moisture, and to minimize high-voltage breakdown at high altitudes.
The act of maintaining normal atmospheric pressure in a chamber subjected to high or low external pressure.

pressurization

i. A form of climate control of an aircraft. It is a means of increasing the partial pressure of oxygen in the cabin of an aircraft flying at a high altitude by increasing the air pressure in the cabin to that of an altitude that requires no supplemental oxygen. Without pressurization, supplemental oxygen is required above altitudes approximately 10,000 ft (3 km).
ii. A method of increasing pressure so that fluids can be delivered under positive pressure (e.g., a fuel tank pressurization system).
References in periodicals archive ?
As a result, the estimated pressurization rates for the stairwell fans determined by the software output tend to be on the conservative side.
In this work, employing a home-made pressure device, we investigated the crystallization behavior of iPP melt in a broad range of high pressure and pressurization rate at a fixed temperature of 200[degrees]C.
Among the many strategies the Navy is exploring to address pressurization issues is a process called an Environmental Control System (ECS) reset, which involves replacing a number of components at the same time.
Aerojet Rocketdyne's RL10C-1 upper-stage engine ignited after separation of the first stage to place the payload into orbit, helped by the Centaur RCS thrusters and pressurization tanks.
The International Building Code (ICC 2015), which has been adopted in all 50 states, does not explicitly require pressure compensating stairwell pressurization systems.
Typically flat bottomed storage tanks are tested and monitored without pressurization. The AE-sensors are mounted at the outer side of the tank wall and acoustic waves propagate through the liquid product to the sensors.
The Federal Aviation Administration said on Wednesday that the crew on the Embraer aircraft had reported a pressurization problem and declared an emergency.
However, you make a good point about having to first recognize the pressurization problem and the insidious onset of hypoxia.
In addition, this algorithm also has "suspending time" before restarting its pressurization feedback control after process value deviate from the "dead zone" in order to ignore the spike-like (rapid and short-period) change of room pressure caused by regular door open/close.
Maintaining pressurization for this aging aircraft is often a challenge, but our maintenance team has done a good job keeping the system working throughout our deployment.
Systems discussed in the handbook include those for stairwell pressurization, elevator pressurization, zoned smoke control, and atrium smoke control.