Hydrothermal Modelling of Browns Ferry Nuclear Plant Cooling Towers,
Abstract
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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1979
- Accession Number
- ADA069433
Entities
People
- John F. Kennedy
- Subhash C. Jain
Organizations
- University of Iowa