23-17: Improving the Performance Modelling of Bulk Air Coolers (BACS) Legionnaires' Disease

23-17: Improving the Performance Modelling of Bulk Air Coolers (BACS) Legionnaires' DiseaseDirect contact cooling towers are used in various applications where the transfer of heat and mass between water and air is needed. Bulk air coolers (BAC) are direct contact devices that are extensively used in the deep level mining industry to cool and dehumidify air, using chilled water, before entering the mine shaft. They operate mechanically in a similar manner to cooling towers with conventional cooling tower theory typically being used for

not specific to any one product or type

Results indicate that elemental content in drift water (mineral residue) may not be equivalent to the content in the recirculating cooling water of the tower

Whether using galvanized steels

Subjects covered include: proper use of historical operating and performance data

lower consumption rates

a plume abated cooling tower is frequently specified to alleviate the perceived problem

The impact on fouling coefficients on both the process and water sides are also discussed

Since pack failure

were closed one to the others

Due to the substantial costs associated with brine disposal

any strategy which enables its dosage reduction is very welcome

Both the fouling and thermal performance of the fills are measured as fouling occurs over time