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Fin drain

Construction materials will be the same as for air-cooled condensers. Aluminium fins on copper tube are the most common for the halocarbons, with stainless steel or aluminium tube for ammonia. Frost or condensed water will form on the fin surface and must be drained away. To permit this, fins will be vertical and the air flow horizontal, with a drain tray provided under. [Pg.84]

Condensed water will run down the evaporator fins to a collection tray below the coil. From there, drain pipes will take this water to a drain. If plastic pipe is used, it should be black to exclude daylight, or slime will grow inside the tube. Drain pipes passing through rooms below freezing point need to be fitted with trace heaters. [Pg.92]

Two methods are used to circulate the room air over the chilled water coil. In the first, an electric fan draws in the air, through a filter, and then passes it over the coil before returning it to the space. The fan may be before or after the coil. The fresh air from the plantroom may be introduced through this unit, or elsewhere. The coil is normally operated with a fin temperature (ADP) below room dew point, so that some latent heat is removed by the coil, which requires a condensate drain. Multispeed fans are usual, so that the noise level can be reduced at times of light load. [Pg.306]

Following an incident in which a drum containing bulked drainings (from other drums awaiting reconditioning) finned and later exploded after sealing, it was found that methyl methacrylate and propionaldehyde can, under certain conditions of mixing, lead to a rapid exothermic reaction. Precautions are discussed. [Pg.627]

In contrast to tliis the introduction of longer alkyl drains with the aid of copper-promoted addition reactions to Asteroids normally proceeds with unsatisfactory oi p ratios [ISh 16]. In some cases improvement of the diastereoselectivity by fin e tiinin g of th e rea ction con diti on s h as h een p o ssihle. The rati o of th e epimeric products IS and 16 in the copper-catalyzed 1 6-addition of 4-pentenylmagnesiiim bromide to dienone 14 for example was improved from 58 42 to 82 18 by adjustments to the quantity of niideophile and the solvent composition (Eq. 4.6) [16f ]. [Pg.149]

To obtain a better idea of the latter limits, a special measure was taken to avoid the interaction of liquid and gas at the channel outlet viz., gas was introduced through a capillary inserted in the bottom end of the channel, and the liquid was drained through a wad of mineral wool, as shown in Fig. 14. Although this solution may not be of industrial interest, it is helpful in understanding the hydrodynamic behavior of countercurrent flow in the internally finned channel in the absence of inlet and outlet effects. [Pg.318]

Circular pin fins have been tested by Chandran and Watson [147], Their average coefficients (total area basis) were as much as 200 percent above the smooth-tube values. Square pins have been proposed by Webb and Gee [148] a 60 percent reduction of fin material as compared to integral-fin tubing is predicted using a gravity drainage model. Notaro [149] described a three-dimensional surface whereby small metal particles are bonded randomly to the surface. The upper portions of the particles promote effective thin-film condensation, and the condensate is drained along the uncoated portion of the tube. [Pg.809]

The enhancement of vertical condensers remains an area of high interest due to potential large-scale power and process industry applications, for example, desalination, reboilers, and OTEC power plants. Tubes with exterior longitudinal fins or flutes, spiral flutes, and flutes on both the interior and exterior (doubly fluted) have been developed and tested. The common objectives are to use the Gregorig effect to create thin-film condensation at the tips of the flutes and to drain effectively. [Pg.811]

In the example shown in Figure 3.15 EHD is used to assist the draining of condensate from between fins on a heat exchanger tube (Butrymowicz et al., 2003). The main feature is the arrangement of the tube-electrode system. In this case the... [Pg.69]

Yellow fin tuna (Thumus albacares) was purchased fiom the Cochin fisheries harbor, India. The tuna was washed, bled in chilled water and loined. The dark meat was removed from the loins and loins cut into steaks of 1.5 mm thickness. The steaks were then brined in 5% brine solution (wA ) for one hr. The drained steaks were then smoked for one hr using dried coconut husks at 75°C in a smoke kiln, Kerres-Ger-many (Model No.CS 350 G EL) to develop the smoke flavor. [Pg.86]

The water wall area is not usually lined, since the majority of the heat transfer is expected to occur in this zone. The base of the tubes at the top of the combustor hning may have a silicon carbide tile or a thin layer of high-conductivity plastic refractory to reduce the erosion of the tubes as the ash slides down the tubes and hits the combustor hning. The water waUs consist of a series of water-filled tubes connected by fins to form a sohd waU that functions as a super heat sink. Any disruption in the feed flow results in a very sudden and severe temperature drop as the water waU drains the heat from the flue gas stream. [Pg.412]

FIG. H-20 Shop photograph of CSA-approved electric hot pipe tank heaters showing terminal boxes of explosion-proof Ex(d) design. Serrated fin tube outer pipes. The Internal heating eiements are removabie without draining tank. (Source Armstrong Engineering Associates.)... [Pg.406]


See other pages where Fin drain is mentioned: [Pg.6]    [Pg.13]    [Pg.8]    [Pg.15]    [Pg.6]    [Pg.13]    [Pg.8]    [Pg.15]    [Pg.1053]    [Pg.2387]    [Pg.96]    [Pg.868]    [Pg.987]    [Pg.205]    [Pg.876]    [Pg.2142]    [Pg.205]    [Pg.192]    [Pg.205]    [Pg.205]    [Pg.1219]    [Pg.207]    [Pg.534]    [Pg.143]    [Pg.809]    [Pg.1220]    [Pg.1057]    [Pg.2391]    [Pg.23]    [Pg.385]    [Pg.450]    [Pg.217]    [Pg.79]    [Pg.291]    [Pg.246]    [Pg.145]    [Pg.765]    [Pg.157]   
See also in sourсe #XX -- [ Pg.5 , Pg.6 ]

See also in sourсe #XX -- [ Pg.5 , Pg.6 ]




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