Flow area

The porosity appears in the denominator of the right-hand side of the equaUty owing to the dependence of velocity on the available flow area, which is reduced from the total cross-sectional area by the factor n. [Pg.402]

The term pressure drop usually refers to the pressure loss that is not recoverable in the circuit, and it is lost energy that is dissipated into the fluid stream in the form of heat energy. The pressure drop in a flow circuit is associated with various forms of energy dissipation owing to friction, change in flow area, flow turning, and others ... [Pg.490]

Pressure Drop from Are Cha.nge, Pressure drop from area change occurs as a result of energy dissipation associated with eddies formed when a flow area is suddenly expanded or contracted. It is expressed in the following form ... [Pg.490]

A heat-transfer surface area, flow area 2 m... [Pg.499]

Spunbonded fabrics are effective filters in that they are layered stmctures of relatively fine fibers, the three-dimensional stmcture of which creates a torturous path. Even relatively thin spunbonded fabrics (eg, 0.2—0.25 mm) present a significant challenge to the passage of soil fines and are suitable for use in some filtration appHcations. The porosity of geotextile fabrics is classified by means of several procedures such as flux (volume flow/area per time) and equivalent opening size (EOS), which is a measure of the apparent pore size of the openings in the fabric. The flux measures the porosity to Hquid water, and the EOS measures the porosity to soHd particles of a known diameter. Literature is available on limitations of particular styles of fabrics within an apphcation (63). [Pg.173]

OTSGs also experience deposition of material on the flow areas in the tube support plates which causes an increase in pressure drop and eventual reductions in plant power production. [Pg.194]

F, Fraction of total tubes in cross-flow F p for fraction of cross-flow area available for byj>ass flow ... [Pg.549]

FK . 6-42 Upp er chart Friction factors for staggered tube banks with minimum fluid flow area in transverse openings. Lower chart Friction factors for staggered tube banks with minimum fluid flow area in diagonal openings. (From Gtimison, Trans. ASME, 59,. 5S3 [1.937],)... [Pg.662]

Cross-flow area at or near centerline for one cross-flow section S,n... [Pg.1038]

FiYictlon of cross-flow area aijailahleforhypass flow Fbp... [Pg.1038]

FIG. 11 8 Estimation of window cross-flow area [Eq. (11-15)]. To convert inches to meters, multiply hy 0.0254. Note that and have units of inches. [Pg.1039]

Vapor flow area, fr Specific heat of the quench fluid Cfl Specific heat of the reactants... [Pg.2293]

Provide adequate flow area (cross section for pressure relief without imposing high backpressure)... [Pg.2299]

The number of holes should provide at least 0.2 holes per square foot of pool cross-sectional area. The flow area of the manifold and/or distributor piping should be at least 2 times the total area of the sparger holes. This generally ensures that the pressure drop across the holes will be at least 10 times the pressure drop in the distributor. [Pg.2299]

Deposits stimulate tubercle formation. Hence, regions where foreign material accumulates are common tubercle breeding grounds. Stagnant, low-flow areas also promote tubercle growth. [Pg.43]

Most of the surface is covered with a black corrosion product that is thicker in relatively low-flow areas near the hub. This layer of soft corrosion product can be shaved from corroded surfaces. Microstructural examinations revealed flakes of graphite embedded in iron oxide near the surfaces. [Pg.383]

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