Containment sprays

Prevent containment overpressure Reactor building spray injection system Reactor building spray recirculation system Reactor building fan coolers Ice condensers Prevent containment overpressure Containment spray injection system, containment spray recirculation system containment fan c ng system, ice conde... 

Prevent containment ova-pressure Residual heat removal system Shutdown cooling system Containment spray system... 

The safety improvements use redundancy and diversity to prevent and mitigate lents. The safety injection system (SIS) and emergency feedwater system (EFWS) are dedicated four train systems. Containment spray and safety injection pumps take water from the in-containment water storage tank (IRWST), thus, eliminating the need to switch from an external source and provide a. semi-closed system with continuous recirculation. Emergency core coolant flows direc nto the... 

Ceitain engineered safety features (containment sprays, suppression pools, ice condenscr.s i will effectively remove fission products regardless of form. Other ESF such as filters are less effective. 

These plants generally have separate shutdown cooling and containment spray systems and a multi-loop core spray system. With the exception of Big Rock Point, which is housed in a large dry containment, these plants use an i,solation condenser... 

These plants are designed with two independent high-pressure injection systems, namely reactor cooling sure coolant injection (HPCl). The associated pumps are each potiered fay turbine. also have a multi-loop core spray system and a multi-mode residual heat re sy.stem that can be aligned for low-pressure coolant injection, shutdown cooling, suppre.ssion pc containment spray functions. 

Often pesticide wastes, which require special disposal facilities, are in a dilute form and result from rinsates from containers, spray tanks, and equipment wash water. These may originate from the small applicator or large commercial operator. Such wastes should be sprayed on an area for which they are approved or placed in a safe disposal facility. Occasionally, fairly large volumes of recommended concentration dilute mixtures resulting from livestock dipping operations, overestimating the amount needed for a spray operation, etc., must be discarded. 

To collect equipment blank, place a clean funnel into the sample container. Spray the cleaned surface with analyte-free water from the squeeze bottle and direct the water from the cleaned surface into the funnel. Alternatively, pour the water from the cleaned surface directly into the sample container. (This step requires substantial manual dexterity and may need two persons.)... 

Rotthauser, B., Kraus, G., and Schmidt, P. C. (1998), Optimization of an effervescent tablet formulations containing spray-dried L-leucine and polyethylene glycol 6000 as lubricants using a central composite design, Eur. J. Pharm. Biopharm., 46, 85-94. 

The bioassay was used to determine the bioavailability of zinc in milk-base and soy-base infant formulas (7). The results are shown in Figure 2 and Table 1. The low zinc basal diet contained (%) spray dried egg white powder, 20 com oil, 10 non-nutritive fibre, 3 starch, 25 biotin, 0.0004 vitamin mixture, 1 salt mixture, excluding zinc, 4 dextrose, 37. 

Rotthauser, B. Kraus, G. Schmidt, P.C. Optimization of an effervescent tablet formulation containing spray dried... 

Because of the long-term instability of proteins in aqueous solution, enzyme producers and formulators have attempted to produce stable solid enzyme formulations since enzymes were first used in detergents. Initially, commercially produced protease-containing detergents contained spray dried enzymes. As discussed earlier, proteases have the ability to digest themselves via autolysis and are often incompatible with surfactants. These problems are easily overcome by storing the... 

The effects of added poultry fat and type of binder on the texture of cooked chunks were investigated by Polo et al. (2007). Figure 11.5 illustrates the relationship between the hardness of the chunk and the poultry fat content for a recipe containing spray-dried animal plasma (SDAP) and WG as the binders. The resnlts showed that the hardness of the chunk decreased with an increase in the level of fat addition, indicating that the fat reduced the viscosity of the emulsion. Nevertheless, the hardness of the chunk containing SDAP was greater than that of the chunk containing WG. 

Dr. DeJonge will be screening different gannent materials for Dr. Nigg s field studies in a contained spray apparatus to simulate seme nozzle types and spray pressures used in the field. 

A disadvantage of filter system for the removal of fission products from large containment volumes is that the flow rates the systems can accept are generally relatively small by comparison with the containment volume, and some time must therefore elapse before the entire containment atmosphere can be treated. The containment spray system, which drenches the whole of the containment volume with a fine spray of water, does not suffer from this disadvantage. They also perform the double task of condensing steam and so reducing containment pressure and removing fission products. 

As far as possible effects of operator actions are concerned, if electric power is recovered before the core is uncovered, cooling is re-established and the accident is terminated without damage, or with only modest damage, to the core. The operator has also to open the PORV in order to decrease the pressure in the primary system and to allow the use of the low pressure injection pumps for cooling the core. If the power is recovered after vessel break, flooding of the cavity will take place as an effect of the containment spray system and consequently the end of the accident destructive processes will occur. 

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