Cooling towers are typically located on the roof or near the building. Fans are usually located on the top or side of cooling towers. Note: Side mounted fans are difficult, if not impossible, to see from aerial photographs.
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How to control cooling tower blowdown and chemical treatments?
Both cooling tower blowdown and the feed of cooling tower chemical treatments are most often controlled through automated systems such as Veolia Water Technologies’ 5C PLC controller, which maintains cooling water quality within the control parameters necessary to optimize cooling tower performance.
How to reduce the scale of cooling tower water?
Control parameters and a cooling tower chemical treatment program should be developed which neutralize the scaling, corrosive or fouling nature of the cooling water throughout the system and optimize both heat exchanger efficiency and system protection.
How does a cooling tower basin water system work?
The makeup water is connected above the required cooling tower basin water line, within the tank, there is usually a float valve that will be used to manage the water filling process. From the tower looking back down the system, there will usually be a water tank and pumps, as explained later in this section.
What is a cooling tower bypass?
A cooling tower bypass is used mainly in colder climates, where there is risk that the supply water temperature to the condenser side of the chillers is not at the required temperature set point, i.e its to cold system A bypass mixes some of the warm return water with the water being supplied from the tower increasing its temperature.
Where is a cooling tower located?
Cooling towers should be located as near as possible to the refrigeration systems they serve, but should never be located below them so as to allow the condenser water to drain out of the system through the tower basin when the system is shut down.
How do you treat cooling tower water?
How Does A Cooling Tower Water Treatment System Work?Filtration & Ultrafiltration. Filtration systems are some most common water treatment options for cooling towers. ... Makeup Water Intake. ... Ion Exchange & Water Softening. ... Addition Of Chemicals. ... Side-Stream Filtration. ... Blowdown Treatment. ... Cooling Tower Cleaning.
What is cooling tower treatment?
Cooling tower water treatment involves using select filtration technologies and chemical products in order to remove toxic or otherwise damaging impurities from your cooling tower system. Through cooling tower water treatment, you can solve the top cooling tower issues, including: Biofilm and fouling.
Where is used in cooling tower?
Cooling towers are primarily used for heating, ventilation, and air conditioning (HVAC) and industrial purposes. Cooling towers provide a cost-effective and energy efficient operation of systems in need of cooling. More than 1,500 industrial facilities use large quantities of water to cool their plants 2.
Which chemical is used in cooling tower?
Chlorine dioxide – This chemical can be used as a disinfectant to destroy microorganisms and prevent recurring growth.
What is the pH of cooling tower water?
between 6.5 and 7.5If you have doubts about the proper pH levels for your tower water, ask your water treatment company for recommendations. A pH between 6.5 and 7.5 is generally considered the ideal range for reducing scale formation, though some non-acid treatments for scale prevention can increase the cooling tower pH range up to 8.5.
What is COC in water treatment?
What is COC meaning? COC or the Cycles Of Concentration is an abbreviation, used when talking about cooling water or cooling tower water. The COC specifies, how often a fresh water added into the loop, can be used or pumped around, before the water has to blown down or bleed off from the cooling tower.
What is chemical treatment system?
Chemical Treatment Systems. Specifically chosen for your conditions, these chemical treatment units automatically control the release of agents into your water to control scale, suspended solids, and microbiological growth in your system. Compact and flexible for your cooling tower and chilled water applications.
What is TDS cooling tower?
The TDS concentration of cooling tower water and the pH values depend on its original sources and on the cycle number of circulations inside the building. The TDS values change from 300 to 1,200 ppm.
What is cooling tower in HVAC?
Cooling towers are heat exchangers that use water and air to transfer heat from air-conditioning systems to the outdoor environment. Most commonly, they are used to remove heat from the condenser water leaving a chiller.
How many types of cooling towers are there?
There are three main types of cooling towers that are defined by how water or air pass through them. These types include crossflow, counterflow, and hyperbolic. There are also two varieties classified solely on airflow, known as induced draft and passive draft cooling towers.
Do cooling towers have refrigerant?
Cooling Tower water is circulated through a heat exchanger where refrigerant vapor is condensed and heat is transferred to the water. The purpose of the cooling towers is to cool the warm water returning from the heat exchanger so it can be reused.
When will cooling tower water be treated?
The Cooling Tower Water Treatment Basics. September 21, 2020, by Tower Water. If you own or manage a cooling tower, you may be considering your options for water treatment to improve the cleanliness, longevity, and efficiency of your system.
What is filtration in cooling towers?
Filtration & Ultrafiltration. Filtration systems are some most common water treatment options for cooling towers. Filters may look like bags or a series of mesh screens. How many and what size you will need depends on your specific situation. Filtration works by passing water through progressively smaller spaces.
How to soften water in a cooling tower?
You can soften your water by inserting lime, or you can opt for a resin. This resin will be charged with sodium ions; as the hard water comes through, the resin will release the sodium and grab the minerals in the water, because the resin is built to have a stronger affinity for elements like calcium and magnesium. This will improve the quality of your water without introducing harmful byproducts.
Why do water towers work?
Water treatment systems that work on cooling towers are effective because they are versatile. Regardless of what style or material your water tower is made out of, you will be able to find a water treatment option that works in your system. You have a number of choices, all determined by factors like the type of cooling your tower does ...
Why is it important to get in touch with a water treatment expert?
This is why it is important to get in touch with a skilled water treatment expert who can review your cooling tower and make recommendations that are personalized to your situation.
Is it necessary to clean a cooling tower before running it?
Thus, it is essential to ensure the cooling tower is properly cleaned and maintained before running the system.
Can cooling towers be reused?
Some cooling towers will choose to reuse or recycle water through reverse osmosis or other options. This opens reused water to new contaminants, even if it was cleaned before. Demineralization treatment may be useful here to remove the most common contaminants that reenter the water as part of this process.
Why Perform Regular Cooling Tower Water Treatment?
Water treatment for a cooling tower is beneficial for a variety of reasons, but perhaps the most notable is its role in preventing the spread of dangerous bacteria. Legionella can cause Pontiac fever and even the potentially fatal Legionnaires’ disease if this type of microorganism is allowed to thrive within a cooling tower.
Filtration as Part of Water Treatment
One of the most important parts of consistent water treatment is installing a filter or series of filters, depending upon what your specific cooling tower needs. Many filters come in a series, where water progresses through gradually smaller mesh screens or bags.
Altering Water Quality
Overall water quality is composed of more than just suspended solids and debris within the water. During the development of your comprehensive water treatment plan, you will also need to consider the hardness of your water, or in other words, the amount and type of minerals within it.
Chemicals as Needed
Whether or not your system will require chemical water treatment depends upon what you discover in other stages of the investigative process. If corrosion is an issue, you may need corrosion inhibitors , and if biological material becomes an issue it can be solved with biocides.
Cleaning and Maintenance as Part of Water Quality Improvement
Make no mistake: all the water treatment efforts in the world will make no difference if you do not adequately maintain, repair and clean your cooling tower.
Work with the Water Treatment Professionals
Whether you are looking to establish a comprehensive water treatment plan for the first time or you would like a second opinion about your current strategy, you can work with a water treatment company that specializes in cooling towers.
What causes a cooling tower to turn white?
Low hardness and high pH recirculating waters can promote a white, waxy deposit that is a zinc-rich oxide, that can lead to premature failure of the galvanized coating of the cooling tower component.
What is the purpose of cooling water?
Cooling water systems are used in many industrial plant operations, institutional facilities and commercial/residential buildings to provide comfort and air conditioning. Systems such as cooling towers, evaporative condensers and fluid coolers remove heat by means of evaporation of the recirculating water.
Why is cooling water important?
Due to the moisture, nutrient sources, temperature and sunlight exposure, cooling water systems can provide optimum conditions to incubate a variety of life forms such as bacteria, bio-film formation, algae and fungi. The result is biological fouling on the component surfaces, greatly impeding the system operation and cooling efficiency.
What is parallel flow heat exchanger?
Parallel flow heat exchanger design where hot fluid & cooling water enters on the same side of the heat exchanger. The LMTD of parallel flow heat exchanger design calculated by using the below formula:
Can you ignore drift in a cooling tower?
It is very difficult to ignore the drift problem in a cooling tower. Drift or windage loss of cooling tower is normally provided by its manufacturer based on cooling tower design. If it isn’t available then you can assume based on below formula.
Why Perform Regular Cooling Tower Water Treatment?
Filtration as Part of Water Treatment
- One of the most important parts of consistent water treatment is installing a filter or series of filters, depending upon what your specific cooling tower needs. Many filters come in a series, where water progresses through gradually smaller mesh screens or bags. However, even the smallest filters will still allow some particles to pass through; th...
Altering Water Quality
- Overall water quality is composed of more than just suspended solids and debris within the water. During the development of your comprehensive water treatment plan, you will also need to consider the hardness of your water, or in other words, the amount and type of minerals within it. Softening your water helps to reduce the magnesium, iron and calcium that can contribute to bui…
Chemicals as Needed
- Whether or not your system will require chemical water treatment depends upon what you discover in other stages of the investigative process. If corrosion is an issue, you may need corrosion inhibitors , and if biological material becomes an issue it can be solved with biocides.
Cleaning and Maintenance as Part of Water Quality Improvement
- Make no mistake: all the water treatment efforts in the world will make no difference if you do not adequately maintain, repair and clean your cooling tower. Your tower’s basin, fans and other equipment can become breeding grounds for bacteria, and existing scale and corrosion may provide safe places for unwanted materials to hide. Ensuring that your cooling tower functions a…
Work with The Water Treatment Professionals
- Whether you are looking to establish a comprehensive water treatment plan for the first time or you would like a second opinion about your current strategy, you can work with a water treatment company that specializes in cooling towers. Tower Water sets the standard in water treatment and would be happy to visit your location and evaluate the health and risks of your cooling tower…