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Hydrothermal modelling of Browns Ferry Nuclear Plant cooling towers

Technical Report ·
OSTI ID:5778076
;
A laboratory model study of the mechanical draft cooling towers of Browns Ferry Nuclear Plant was conducted to determine plume recirculation and cooling-tower interference quantitatively, and to evaluate the effectiveness of various modifications, including removal of a nearby spoil hillock, rearrangement of the tower cells, and increase of stack height, on the cooling-tower performance. Two sectional models with a scale of 1:150, each consisting of two towers, were tested. The dynamic scaling was based on equality of the densimetric Froude number, F(D), (F(D) = V(j)/sq. root of delta (Rho sub o) gD, where V(j) is the stack exit velocity, D is the stack diameter, g is the gravitational constant, rho sub a is the ambient fluid density and delta (Rho sub o) is the density difference between the ambient and jet effluent and the velocity ratio K(K = V(j)/V(a), where V(a) is the cross-flow velocity at the stack height. It was found that the effect of the spoil hill and of the relocation of two cells per tower on the overall recirculation ratio of the towers is not significant. An increase in stack height from 14 ft to 42 ft significantly reduced tower recirculation.
Research Organization:
Iowa Inst. of Hydraulic Research, Iowa City (USA)
OSTI ID:
5778076
Report Number(s):
AD-A-069433
Country of Publication:
United States
Language:
English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BROWNS FERRY-1 REACTOR
BROWNS FERRY-2 REACTOR
BROWNS FERRY-3 REACTOR
BWR TYPE REACTORS
COOLING
COOLING TOWERS
DIMENSIONS
ENRICHED URANIUM REACTORS
EXCAVATION
FLUID FLOW
FUNCTIONAL MODELS
HEIGHT
INTERFERENCE
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MIXED SPECTRUM REACTORS
PLUMES
POWER REACTORS
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WASTE DISPOSAL
WASTE MANAGEMENT
WATER COOLED REACTORS
WATER MODERATED REACTORS