TP25-17 Direct Drive Cooling Cooling Tower Water Blowdown TreatmentThe promise of direct drive cooling tower fans with Permanent Magnet (PM) motors is not new, but so far this approach has not seen significant adoption. This paper reviews the advantages of direct drive and the requirements for successful direct drive implementation, including performance and economic gaps that have impeded adoption. Efficient torque at the low speeds required for direct drive has been a critical constraint. Crossing this gap can be
On many field erected cooling tower projects
The liquid for the slurries of material can be distilled water
Oxidation of the phosphonates to phosphate by cerium IV ion is accomplished without heating
and approved as a valuable contribution to cooling tower literature
on biological control in cooling water systems using non-chemical treatment devices
The tower was upgraded in April '88 during the scheduled plant outage of three weeks
A fully instrumented fan test was used to investigate the effects upon fan system performance resulting from two different styles of drift eliminators
optimization of pH control
high cycle operation risks mineral scale formation
The collected mud and scaling are treated to kill all bacteria
To achieve peak cooling tower operating efficiency
A Pilot Cooling System was developed to simulate the operation of an open recirculating cooling system for the purpose of evaluating potential cooling water treatment programs on a pilot scale prior to their implementation in the refinery cooling system
