A simple drift measurement technique for industrial cooling towers

Area of Science:

• Environmental Engineering
• Chemical Engineering
• Mechanical Engineering

Background:

• Cooling towers are essential industrial equipment for heat dissipation.
• Accurate measurement of water loss, particularly drift, is vital for water conservation and operational efficiency.
• Existing methods for drift loss measurement can be complex or costly.

Purpose of the Study:

• To present a simple and inexpensive method for measuring drift loss rate in induced draft cooling towers.
• To quantify drift loss rates in operational cooling towers.
• To provide data essential for water use planning in industrial settings.

Main Methods:

• Utilized three induced draft cooling towers for experimental measurements.
• Employed two conservative additives to track water concentration changes.
• Monitored the decrease in additive concentration in recirculating water under specific operating conditions (no blowdown, normal makeup).

Main Results:

• Successfully measured the drift loss rate for the tested cooling towers.
• Demonstrated the efficacy of using conservative additive concentration decrease to determine drift loss.
• The method proved to be simple and cost-effective.

Conclusions:

• The described method offers a practical approach to quantifying cooling tower drift.
• The findings provide essential data for optimizing water usage in industrial cooling systems.
• This technique supports informed water resource management and planning.