10 Questions You Should to Know about pultruded frp cooling tower

07 Apr.,2025

 

12 Commonly Asked Questions About Cooling Towers

The cooling tower is nothing but a device used to reduce the heat and increase production efficiency. In simple words, it is used to cool industrial hot water. Its size ranges from tiny to massive towers based on the requirement.

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A cooling tower’s main function is to remove heat from water by evaporating a little amount of it. The mixture of warm and cooler water leads to latent heat evaporation causing the water to cool. A commercial cooling tower has an average life expectancy of 15-20 years.

Several industries use a cooling tower, such as chemical manufacturing plants, primary metals processing plants, petroleum refineries, rubber products manufacturing plants, tobacco manufacturing plants, glass manufacturing plants, and textile manufacturing plants.

12 questions about the cooling towers

The cooling tower provides high cooling efficiency, needs less maintenance, consists of reliability and sustainability, and can be operated for a longer duration. Now, let us have a look at a few questions that will help you get clear with the idea behind cooling towers.

1. What is a cooling tower?

A cooling tower is nothing but a heat exchanger. It extracts waste heat to the atmosphere by cooling the water stream to a lower temperature. Water begins to cool when it comes into contact with air. In this way, the same amount of water is evaporated and thereby cool down the hot water.

2. What are the different types of cooling towers?

There are two types of cooling towers:

  1. Crossflow cooling tower
  2. Counterflow cooling tower

3. What is an Evaporative cooling tower?

Cooling is provided via an evaporative cooling tower based on a design wet-bulb temperature. This cooling tower can cool water to 85 degrees Fahrenheit. It is the most economical option for cooling a large amount of water.

4. What is entering wet-bulb temperature (EWBT)?

EWBT is nothing but a device that measures the level of humidity in the air entering the cooling tower. The higher the temperature of the wet bulb, the more moisture exists in the air. The cooling tower needs to be larger with a high wet-bulb temperature compared to a lower wet-bulb temperature.

5. What is the difference between ‘counterflow’ and ‘cross flow’ cooling towers?

In a counterflow cooling tower, air travels vertically upwards through the fill and makes intimate contact with water. Hence, both air and water are in opposite directions. In a crossflow tower, air passes through the fill horizontally, crossing the downwards water flow.

6. Why choose the FRP cooling tower?

FRP (fibreglass reinforced polyester) is mixed with a gel coating that protects the cooling tower from direct UV rays. Additionally, it also provides a higher resistance to rot and decay to all FRP portions. Hence, FRP cooling tower manufacture is considered in extreme climate conditions.

7. How do Cooling Towers Operate in Cold and Sub-zero Weather?

In cold weather, the cooling tower is operated with a heat load. The operating water flow is directly bypassed to the cold-water basin to prevent icing if the heat load drops too low. The water flow is maintained over the cooling tower.

8. What is the difference between a ‘Force Draft’ and ‘Induced Draft’ cooling tower?

A Force-draft cooling tower imparts an agitation system that forces air into the tower, and fans are positioned on the side of the cooling water. Meanwhile, induced draft tower works by pulling air from the building and fans are located on the top of the cooling tower.

9. How is Water Loss Calculated in Cooling Tower?

There are three types of water loss in the cooling tower: drift, evaporation, and blowdown. Drift loss is while circulating water for the natural draft tower. Evaporation loss is simple as it sounds, water loss due to evaporation. Blowdown loss is during circulating water that lowers the concentration of solids.

10. What is Cooling Tower Drift?

Drift is undesirable loss of water to the environment through tiny, unevaporated droplets in the existing cooling tower stream. These water droplets carry minerals, microorganisms, debris, and chemicals from the circulating water. Hence, it potentially impacts the environment.

11. What is the regulating organization for cooling tower technology, and where can you learn more about the cooling tower industry?

There’s a worldwide industry named Cooling Technology Institute (CTI) authorized on cooling tower technology. In this institute, there are manufactures, owners/operators, and supplies providing facilities for the cooling tower. Moreover, you can get more information on CTI guidelines and specifications on the CTI site.

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12. How to clean Air Inlet Louvers of Cooling Tower?

The best method to remove the minerals from the air inlet louvres is to remove the louvre equipment and let them soak in the cold-water basin of the unit. The chemicals present in the water treatment unit will neutralize and dissolve the minerals buildup. The time depends on the severity of the buildup.

Avoid These Issues When Starting a Cooling Tower

There are many advantages of using an FRP round cooling tower, and along with these, it is also important to avoid some basic issues while starting it to avoid any issues. We’re here to help you navigate through these challenges and ensure your cooling tower experience is smooth sailing. So, without further ado, let’s dive into the potential pitfalls you should avoid when starting a cooling tower.

1. Improper Water Treatment

A cooling tower’s lifeblood is water, and maintaining its quality is essential for optimal performance. Neglecting water treatment can cause scale buildup, corrosion, and the growth of harmful bacteria like Legionella. So, keep a close eye on your water chemistry and ensure you’re using the appropriate water treatment products.

2. Forgetting to Clean the Cooling Tower

A dirty, pultruded FRP cooling tower is an inefficient cooling tower. Regular cleaning is essential to prevent the buildup of dirt, debris, and other contaminants that can impede airflow and reduce heat transfer efficiency. Make sure to schedule regular cleaning for your cooling tower.

3. Using Poor-Quality or Incompatible Parts

When it comes to FRP cooling towers in India, quality matters. Using subpar or incompatible replacement parts can lead to reduced efficiency, increased wear and tear, and even catastrophic failure. Always source your parts from reputable manufacturers and ensure they’re compatible with your cooling tower model. And remember, you get what you pay for—investing in high-quality parts will save you money and trouble in the long run.

4. Insufficient Airflow

Airflow plays a crucial role in the cooling process, and insufficient airflow can seriously hamper your cooling tower’s performance. Ensure your fans are functioning correctly and that there’s adequate ventilation around the cooling tower. If you notice any issues with airflow, consult with an expert to identify and resolve the problem.

5. Overlooking Vibration and Noise Issues

Excessive vibration and noise can signal problems with your FRP cooling tower, such as imbalanced fans or damaged components. Not only can this be annoying, but it can also lead to accelerated wear and tear. So, if you notice unusual vibrations or noise, don’t ignore it. Ensure to investigate of the cause and address the issue promptly.

6. Ignoring Local Regulations and Codes

Before installing your cooling tower, make sure you’re aware of any local regulations, codes, and permits that may apply. Ask an FRP cooling tower manufacturer if you face any doubts. Non-compliance can lead to hefty fines, legal headaches, and even forced shutdowns. Do your research, consult with local authorities, and ensure your cooling tower meets all necessary requirements. And don’t forget to keep up-to-date with any changes in regulations, as they can evolve over time.

7. Overlooking Safety Precautions

Safety should always be a top priority when operating a cooling tower. Failing to follow safety guidelines can result in accidents, injuries, or worse. Ensure your cooling tower is equipped with the proper safety features, such as guardrails and access platforms. Train your staff on safety procedures and protocols, and always encourage a culture of safety awareness within your organization.

8. Neglecting Energy Efficiency

Energy efficiency isn’t just about being eco-friendly; it can also save you money in the long run. Inefficient cooling towers can lead to increased energy consumption and higher operating costs. To avoid this, invest in energy-efficient components, such as variable frequency drives (VFDs) for your fans, and regularly evaluate your cooling tower’s energy usage to identify areas for improvement.

9. Poor Communication with Your Team

Poor communication can lead to misunderstandings, missed maintenance tasks, and overall inefficiency. Foster open communication within your team and ensure everyone is on the same page regarding the cooling tower’s operation and maintenance requirements.

10. Not Planning for Future Expansion

It’s essential to think ahead when installing a cooling tower. If your facility is likely to expand in the future, your cooling tower should be able to accommodate that growth. Work with your engineer or cooling tower manufacturer to design a system that can be easily upgraded or expanded as needed.

11. Failing to Monitor the Performance

Monitoring your cooling tower’s performance is critical to ensure it’s operating at peak efficiency. Regularly track Key Performance Indicators (KPIs) such as water temperature, flow rates, and energy usage. This will help you identify any issues early on, allowing you to address them promptly and maintain optimal performance.

Wrapping Up

Starting up a cooling tower can be an exciting venture, but it’s crucial to be aware of potential issues that may arise. By keeping these common pitfalls in mind, you’ll be better equipped to ensure your cooling tower operates efficiently, safely, and effectively. So, as you embark on your cooling tower journey, remember to consult with experts, invest in quality components, and prioritize regular maintenance and safety. Happy cooling!

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