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Steam blower

Dampf-gas, n. dry steam, superheated steam, -geblase, n. steam blast steam blower, -gummi, n. dextrin, -hahn, m. steam cock. [Pg.97]

Design requirements called for a still to supply an average household (250 to 500 gallons per day) be sized to pass through a door 26 inches wide be thermally self-sufficient—i.e., stay at operating temperature without additional heat—and start and stop on demand without supervision. The Aquastill (9) meets these specifications on the laboratory floor and in the field on noncorrosive waters. For prolonged use on sea water, changes will be required in construction materials for the steam blower and residue extraction pumps. [Pg.144]

Start-up system Steam blower - Enriched boosters... [Pg.198]

For this reason, under of the nominal load, the reactor is operated by reducing the coolant density. This is obtained by recirculating a portion of the steam to the core inlet through a steam blower. The steam flow rate is then established so as to ensure a stable coolant flow in the power channels. [Pg.203]

The steam blower is therefore used for the reactor start-up. Start-up with reduced coolant density also helps in overriding the xenon peak, at least to a certain extent. [Pg.203]

The possibility will be investigated of operating the steam blowers up to power value s exceeding the 25 limit. This results in a reduction of the average coolant density. [Pg.203]

One could also envisage operating the reactor in nominal full-power conditions keeping the steam blower running and thus having a positive inlet steam quality. [Pg.203]

In 1989, the steam-water power reactor concept was presented by Alekseev and colleagues working in the former USSR [16]. The use of steam-water mixture for the reactor cooling is a key feature of the concept. There are two versions of the steam-water mixture preparation and distribution system. In one, the steam is supplied externally by steam blowers to the RPV and it mixes with feedwater in the special nozzle mixers set at the fuel assembly inlet. In the other, the steam is circulated in the RPV by jet pumps. The steam-water mixture is prepared in the jet pumps. The diagram of the steam-water power reactor is shown in Fig. B.24 [3]. There is no description on the feasibility of steam-water mixture generation. The plant system is indirect cycle. The primary pressure is 16.0 MPa. The core inlet and outlet temperatures are 347 and 360°C, respectively. The core inlet quality is 40%. The average void fraction of the core is estimated to be 93%. The core average coolant density is estimated to be 0.14 g/cm. It should be pointed out that the technical and safety problems will be similar to those of the steam cooled FBR. [Pg.642]

Fig. B.24 Diagram of SWPR for the versions with steam circulation by steam blowers (a) and by jet pumps (b) (Taken from ref. [3])... Fig. B.24 Diagram of SWPR for the versions with steam circulation by steam blowers (a) and by jet pumps (b) (Taken from ref. [3])...
Loeffler-type boiler for generating inlet steam. Steam blowers are required rather than feedwater pumps. Short time margin for emergency core cooling due to high power density and positive reactivity coefficient is an engineering drawback. Appendix B is based on Ref. [3]. [Pg.643]

Flare noise (roar of combustion) is the most serious because it is elevated and the sound carries. The flare can be located at a remote distance from the operating unit or surrounding community. Noise of steam injection into the burner can be reduced by using multiple no22les. Furnace noise from air intake, fuel systems, and combustion blower forced draft/induced draft (FD/ID) fans can be reduced by acoustics. The plot plan should be evaluated for noise generation and to find the means of alleviating or moving noise to a less sensitive area. [Pg.83]

Batch Process. In the batch process (Fig. 5), the feedstock is preheated in a tube furnace or heater placed between the feedstock storage and the blowing vessel. The air supply is provided by a variety of blowers or compressors and a vertical-tower vessel is preferable for air-blowing. Knockout dmms, water scmbbers, incinerators, furnaces, and catalytic burning units have been used for fume disposal (32). Steam is used for safety and to ensure positive fume flow to the incinerator. [Pg.364]

The steam balance in the plant shown in Figure 2 enables all pumps and blowers to be turbine-driven by high pressure steam from the boiler. The low pressure exhaust system is used in the reboiler of the recovery system and the condensate returns to the boiler. Although there is generally some excess power capacity in the high pressure steam for driving other equipment, eg, compressors in the carbon dioxide Hquefaction plant, all the steam produced by the boiler is condensed in the recovery system. This provides a weU-balanced plant ia which few external utiUties are required and combustion conditions can be controlled to maintain efficient operation. [Pg.21]

Vapors (from drying) are removed at the feed end of the dtyer to the atmosphere through a natural-draft stack and settling chamber or wet scrubber. When employed in simple drying operations with 3.5 X 10 to 10 X 10 Pa steam, draft is controlled by a damper to admit only sufficient outside air to sweep moisture from the cylinder, discharging the air at 340 to 365 K and 80 to 90 percent saturation. In this way, shell gas velocities and dusting are minimized. When used for solvent recovery or other processes requiring a sealed system, sweep gas is recirculated throu a scrubber-gas cooler and blower. [Pg.1209]

A power recovery train—occasionally called a string—(Figure 4-53) employing a turboexpander usually consists of four main elements or casings the expander, a motor-generator, an air blower, and a steam turbine. The steam turbine is used primarily for startup and often to supplement the expander for generation of energy. This topic will be discussed in more detail later in this chapter. [Pg.152]

An inerease in ambient air temperature will deerease the available energy for the generator. This assumes that the fresh feed and eoke burn remains eonstant. The expander horsepower does not ehange, but the air blower horsepower inereases with inereased air temperature, eausing the exeess energy to deerease. Steam and water may need to be added to the flue gas flow at various points in the system to eontrol afterburning. In Figure 4-64, the solid eurves are for a normal flow of steam. The dotted eurves are for inereases in the steam rate by 3.05 times, 4.85 times, and 6.05 times the normal flowrate. [Pg.167]

Independent start-up. steam turbine sized for blower Process Ime-oiit independent of expander Reduced exposure of expander to high catalyst loadings... [Pg.178]

The second step in developing the process air train is selecting the air blower main driver. This step includes many alternatives such as power recovery expanders, steam turbines, and electric motors. The following example illustrates these alternatives. [Pg.212]

Direct Material Costs — Major Equipment Motor — Induction Type Steam Turbine Driven Air Blower Motor Driven Air Blower One Stage Expander Driven Air Blower Two Stage Expander Driven Air Blower... [Pg.214]

For Main Air Blower serviee without a steam turbine in the string, the unit shall be started by first applying windage steam and then aeeelerating the train to rated speed using the eleetrie motor. After aehieving stable rated speed, the expander inlet valve will be... [Pg.298]

Items Expander Air blower Steam turbine Motor/ generator... [Pg.466]

The adsorbers are usually built of steel, and may be lagged or left unlagged the horizontal type is shown in Figure 28. The vapor-laden air is fed by the blower into one adsorber which contains a bed of 6- to 8-mesh activated carbon granules 12 to 30 inches thick. The air velocity through the bed is 40 to 90 feet per minute. The carbon particles retain the vapor only the denuded air reaches the exit, and then the exhaust line. The adsorption is allowed to continue until the carbon is saturated, when the vapor-laden air is diverted to the second adsorber, while the first adsorber receives low-pressure steam fed in below the carbon bed. The vapor is reformed and carried out by the steam. The two are condensed and if the solvent is not miscible with water, it may be decanted continuously while the water is run off similarly. After a period which may be approximately 30 or 60 minutes, all the vapor has been removed, the adsorbing power of the charcoal has been restored, and the adsorber is ready to function again, while adsorber No. 2 is steamed in turn. [Pg.300]

Strahl-antrieb, m. jet propulsion, -apparat, m. jet apparatus (as steam-jet injector, pump, or blower), -asbest, m. plumose asbestos, -baryt, m. radiated barite, Bologna stone, -blende, /. a variety of sphalerite. -dUse, /. jet nozzle. [Pg.431]

The furnace blower or boiler circulator pump starts up to send heated room air or hot water through the ducts or hot water pipes to the steam radiators, or hot water baseboard units, or individual room air registers located throughout the house. When the thermostat is satisfied that the room temperature has reached the set point, the burner shuts off. In furnaces, the blov er continues to run a few seconds until the air temperature drops to about 90° F, then the blower also shuts off. The furnace blower may come on again before the next burner start-up to purge heat out of the furnace, particularly if the fan has a low turn-on set point. The cycle... [Pg.541]


See other pages where Steam blower is mentioned: [Pg.310]    [Pg.310]    [Pg.308]    [Pg.203]    [Pg.501]    [Pg.619]    [Pg.310]    [Pg.310]    [Pg.308]    [Pg.203]    [Pg.501]    [Pg.619]    [Pg.269]    [Pg.20]    [Pg.21]    [Pg.219]    [Pg.159]    [Pg.169]    [Pg.176]    [Pg.297]    [Pg.297]    [Pg.373]    [Pg.405]    [Pg.452]    [Pg.299]    [Pg.316]    [Pg.18]    [Pg.214]    [Pg.23]    [Pg.346]    [Pg.347]   
See also in sourсe #XX -- [ Pg.619 , Pg.642 , Pg.643 ]




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