Cooling Towers and Cooling Water Systems
أبراج التبريد وأنظمة مياه التبريد
- Next date
- Available in-house
- Fees from
- —per delegate
- Formats
- In-house training0 sessions
- Duration
- 5 daysCertificate
Overview
Cooling towers and cooling water systems remove heat from condensers, heat exchangers, compressors and process equipment in refineries, petrochemical plants, gas plants and power stations. Their performance directly affects production rates, energy use and equipment reliability, especially in hot climates where cooling capacity often limits plant throughput during summer. Poor water treatment, fouled fill, damaged fans and drift eliminators, uneven water distribution and structural deterioration all reduce cooling performance, while microbiological growth such as Legionella creates serious health risks for workers and nearby communities.
This course provides a practical understanding of the operation, maintenance and troubleshooting of cooling towers and cooling water systems. Participants learn the principles of evaporative cooling, wet bulb temperature, range and approach, and the main tower types, including counterflow, crossflow, induced and forced draft and natural draft towers. The course covers fill, drift eliminators, water distribution, fans, gearboxes and drive shafts, basins and structures, cooling water pumps and circulation systems. It also explains water treatment for scale, corrosion, fouling and biological control, Legionella risk management, performance testing, inspection and maintenance, energy efficiency and the troubleshooting of common cooling problems.
Objectives
- Explain evaporative cooling, wet bulb temperature, range and approach
- Describe cooling tower types and their main components
- Operate and maintain fans, gearboxes, drive shafts and pumps
- Maintain fill, drift eliminators, water distribution and structures
- Apply water treatment for scale, corrosion, fouling and biological control
- Manage Legionella risks in cooling water systems
- Test tower performance and troubleshoot common cooling problems
Who should attend
Utilities and process engineers, maintenance technicians, cooling tower operators, water treatment staff and HSE personnel.
Training methodology
The course combines explanation of cooling principles with real tower data, performance curves, water analysis reports and inspection photographs. Participants calculate range, approach, evaporation losses, cycles of concentration and blowdown, evaluate tower capability from test data, review water treatment results and prepare inspection and maintenance checklists for fans, gearboxes and fill. A Legionella risk assessment is completed for an example system. Case studies of cooling limitations in summer, fan failures and Legionella outbreaks are analysed in groups. Each day ends with a short quiz and discussion.
Programme outline
Day1Cooling Principles and Tower Types
- The role of cooling water systems in process plants and their effect on production rates
- Evaporative cooling, wet bulb temperature and the meaning of range and approach
- Heat load, water flow and the factors that determine cooling tower capability
- Counterflow and crossflow towers and their typical applications and limitations
- Induced draft, forced draft and natural draft towers and hybrid cooling systems
- Once-through, open recirculating and closed loop cooling systems compared on cost and water use
- Practical exercise: calculating range, approach and evaporation for an operating tower
Day2Tower Components and Mechanical Equipment
- Fill types, splash and film fill and the effect of fouling on thermal performance
- Water distribution systems, nozzles, basins and the importance of even distribution
- Drift eliminators, louvres and the control of drift losses and water droplets
- Fans, blades, pitch settings and fan stacks and their maintenance needs
- Gearboxes, drive shafts, couplings and motors and their lubrication and alignment
- Vibration monitoring and protection systems that prevent serious damage to cooling tower fans
- Practical exercise: preparing an inspection checklist for fans, gearboxes and drive shafts
Day3Water Treatment and Legionella Control
- Cycles of concentration, makeup water, blowdown and the water balance of a tower
- Scale formation, scaling indices and the design of effective scale inhibitor programmes
- Corrosion control for carbon steel, copper alloys and stainless steel in cooling systems
- Fouling, suspended solids, side-stream filtration and process leaks into cooling water
- Microbiological control, biofilm and the use of oxidising and non-oxidising biocides in towers
- Legionella risk assessment, routine monitoring and the cleaning and disinfection procedures required
- Practical exercise: completing a Legionella risk assessment for a cooling water system
Day4Structures, Pumps and Circulation Systems
- Tower structures in wood, concrete and fibreglass and their deterioration mechanisms
- Inspection of tower structures, basins, casings, stairs and access platforms for deterioration
- Cooling water pumps, their performance curves, cavitation risks and routine maintenance needs
- Cooling water networks, distribution to users across the plant and hydraulic balancing
- Heat exchanger fouling on the cooling water side and its impact on plant performance
- Safety during tower maintenance: working at height, confined spaces and rotating equipment
- Practical exercise: reviewing a cooling water network for distribution and pumping problems
Day5Performance Testing, Efficiency and Troubleshooting
- Thermal performance testing and the evaluation of tower capability against design
- Energy efficiency through fan speed control, fill upgrades and better water distribution
- Planning tower upgrades and capacity increases for hot summer conditions
- Troubleshooting high cold water temperature, poor distribution, vibration and water losses
- Maintenance planning and the preparation needed for cooling tower turnarounds and outages
- Group exercise: troubleshooting a tower that limits plant throughput in summer
- Final assessment and discussion of cooling issues at participants' own plants
Dates and fees
There are no scheduled dates for this course at the moment. Request it as in-house training, or ask us about the next date.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
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