Depressurization


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Depressurization

A condition that occurs when the air pressure inside a structure is lower that the air pressure outdoors. Depressurization can occur when household appliances that consume or exhaust house air, such as fireplaces or furnaces, are not supplied with enough makeup air. Radon may be drawn into a house more rapidly under depressurized conditions. Backdrafting of furnaces and vented appliances can also occur with depressurization, introducing exhaust gases into the house.
References in periodicals archive ?
Therefore, the cavity flooding method is potentially successful as a depressurization strategy because it reduced the containment pressure from 1.2 MPa to 0.8 MPa in the ICRV-CNMT case.
where v is the average velocity when the solution flows through the depressurization slot; t is the time for the solution to pass through the length l of the depressurization slot.
From the published literature, there are currently four kinds of correction methods about pressure impacting saturation, such as depressurization degassing.
During the winter, lower outdoor air temperatures will result in the depressurization of the lower floors and increased pressurization of the upper floors.
Meanwhile, to further analyze, the effects of different melt states before depressurization on the formation of [beta]-crystal were studied also.
BLOWDOWN has been used in hundreds of studies in oil and gas and chemical companies to model depressurization in process plants.
An NTSB investigation blamed the accident on depressurization.
Pressurization testing typically yields marginally higher leakage rates than depressurization (see pressurization and depressurization results in Table 1 below) because of outswing doors and windows that pull tight under negative pressure, but in some cases temporary seals on intentional openings can be blown off during testing, causing abnormally high results.
Among those, two tanks will be used for depressurization. Other tank projects in Al Habat, Al Wafi, Al Zaidi and Muqhabarah have also been completed and commissioned.
Decompression sickness (DCS; also known as divers' disease, the bends or caisson disease) describes a condition arising from dissolved gases coming out of solution into bubbles inside the body on depressurization.
In joint research with Canada, Japan succeeded in producing such gas from permafrost soil in northern Canada between 2007 and 2008 with the depressurization method.
TheAD, which applies to all 737 models, was prompted by a probe into an inflight cabin depressurization and passenger oxygen mask deployment.