Cooling Tower Online

Cooling towers have been most talked about in recent times as they cater to many large scale industrial applications. While setting up a factory for the manufacturing of heavy weight industrial processes, installation of such a cooling tower is a must. These towers are basically heat removal devices that release process waste heat into the atmosphere. The circulating cooling water system within the tower absorbs all the heat from inside and thus contributes towards giving out a cooling effect. This function, compliments its usage in industries such as petroleum refineries, petrochemical and chemical plants, natural gas processing plants and nuclear power plants. Cooling towers such as these enable the saving of time and energy and are a onetime investment so it’s always wise to invest in them from the start up itself. The size of these towers depends upon the different industrial processes; however standard size is 200 meters long, with a width of about 100 meters.

Various types of cooling towers that offer good cooling are available in the market, with a whole lot of companies constantly trying to explain its advantages. A wide range of these include the rectangular cooling tower, round bottle cooling tower, cross flow cooling-tower and the fan and fills less cooling tower. Among them, the rectangular cooling tower made up of the fiberglass reinforced polyester is a popular name in industrial cooling. Just like other towers that provide cooling, the rectangular cooling tower is made up of heat resistant materials with aerodynamically designed louvers manufactured from extruded PVC to avoid water leakages.

These towers contain enough space to hold maximum volume of water for that hassle free working. The construction of this tower is such that all the parts it comprises of are indeed of utmost importance for its smooth functioning. Main parts include a fan, fan motor; PVC fills for better performance, and a steel structure. The corrosion resistant, axial flow type, light weight fan located at the top of the tower, ensures energy savings with maximum air flow. Whereas the low weight PVC fills in its place functions best for generating high performance and resistance against corrosion. These fills offer a right balance between heat transfers in comparison to the minimum restriction of air flow. Also, the steel structures within the towers are made up of superior quality steel, which help withstand any kind of activity.

Rectangular cooling towers in a nutshell are the best in cooling technology. Highly appreciated by all, these towers have been the finest heat removal devices that ensure safety and trouble-free working of your factory at all times. Most cost effective and least time consuming rectangular cooling towers are open for sale with a whole lot of brands. Make the right choice and buy a genuine quality product today.

For that cutting edge rectangular cooling tower visit www.towertechindia.com. It is your one stop online shopping destination for all industrial cooling needs.

Cooling tower is a very important unit operation in the processing industries. It is imperative to minimize the cost of running the operation of the cooling tower.

The purpose of a cooling tower or condenser system is to reuse and reduce water usage. Determining the conductivity set point of the system is important to maximum your water reuse. Conductivity is the electrical resistance measurement of the dissolved solids, suspended solids, and dissolved gases of the water and is expressed in micro ohms (uomhs).

Corrosion inhibitors and scale prevention chemicals are used to maximize the number of cycles. The definition of cycles is the number of times the water is reused in the water system. For example, if the makeup water to the cooling tower is 100 uomhs and your tower recirculating is 800 uomhs, your cycles are calculated as follows:

Cycles = Cooling Tower Recirculating Conductivity / Cooling Tower Make-up Water

For this Example: Cycles = 800 uomhs / 100 uomhs or 8

Percent blowdown for the tower is calculated the following way:

Percent Blowdown = ( 1 / Cycles) x 100

For this Example: Percent Blowdown = (1/8) x 100 = 12.5%

This means 12.5% of the water is being lost to blow down. Knowing your tower cycles is important for minimizing water usage and reducing the amount of water lost to blowdown. Determining proper cycles or conductivity set point is dependent on the water alkalinity and calcium. Every system is unique.

Changing your cycles from 2 to 8 equates to a 38% water savings (50% – 12.5% = 38.5%). Going from 8 to 12 is only a water savings of 3.4% (12.5 % – 9.1%).

Conclusion

Operating your cycles at a higher rate has minimal benefit beyond 8 cycles. Going from 8 to 12 cycles increased the recirculating water impurities by 33%. Many times water systems are stressed to the point of scaling. There is no need to take the added scaling risk for minimal water savings.

This article was brought contributed by Joe Zajac, a Metallurgist from QualiChem Technologies
http://www.BoilerAndCoolingWater.com.

Image credited to eh2o.com/eH2O%20H2O.html

If you are shopping for oscillating tower fans for your home or office then there are several choices that you have to make and by following our simple guide you should be able to find the most suitable one. It is not a super complex set of options, but there are quite a number of models to choose from and it is good to be clear about your needs and your budget before you start looking. The more expensive models come loaded with features such as timing functions, remote controls, breeze modes and even ionizers. However, these features come with a price and may not be needed for all circumstances.

For a larger space you may wish to consider a stand or pedestal fan as an alternative to the tower fan. The adjustable stands on these type of products enables you to get the fan head up higher and so the air can be blown over a larger area of the room. With a pedestal fan with a fairly decent sized head such as 16″, which is one of the most common home fan sizes, you will get good coverage in a large room or office area. However, for smaller spaces the oscillating tower fan will be just fine.

One point to make about the tower fans compared to the stand fans is that they take up less space and they also tend to look very stylish. So if you have a smaller space in your home or office an attractive looking tower fan is both practical and it looks great too. In fact, there is an even a smaller version known as the mini tower fan which can easily be placed on a table or desk.

So, once you have decided that the tower fan is suitable for the space you need cooling in you should consider if any of the more advanced features are really required. For example the more costly models in the Bionaire tower fan range have features such as a remote control. This is self explanatory, but of course it adds to the cost of the fan, so do you need this function or not? Another advanced feature is the “breeze” mode. On the Bionaire fans this mode will attempt to create a natural breeze by switching the fan between its various speed settings in a cycle. It is a great feature, but again you may not need this.

The more pricey units also tend to look a bit more “cool”. Maybe they will be made with a chrome or silver finish as opposed to a more “plastic” looking cheaper unit. This is another point to consider. If you just want some basic cooling at the office or in a small workshop then you may not be bothered how the unit looks, so a cheaper oscillating tower fan would do you just fine.

However, if you need something for your living room or bedroom then maybe you would be interested to spend more to get a really good looking tower fan with some of the more high end functions. The timer function is very useful for the bedroom as it will enable the fan to switch off when you are sleeping and automatically turn on again in the morning. Most models have this, but this feature will be more sophisticated on the higher end products.

So, to conclude this quick guide you will need to first consider the room size, then consider if it is important how the fan looks and finally take in to account whether you need the more advanced features or not. A top of the range oscillating tower fan will cost you at least double the price of a basic item, so it is worth taking some time before you make your choice. Of course all these products will provide you with the basics which are oscillation and speed controls, and maybe that is all you really need.

Herman Nelson AC Unit parts are devices used in controlling and maintaining temperatures and humidity at preferred levels through the distribution of dry, cold or hot air into an indoor environment. Nelson AC Unit parts regulate air by pumping cool air indoors thus replacing hot air, which is then forced into the ductwork and out of the house. The hot air is then cooled and pumped back into the house. They are especially essential in all homes, warehouses, industries and hospitals during summer.

Herman Nelson AC Unit parts vary in sizes, price and function. The four basic categories of the air conditioning units are:

Split-system Nelson AC Unit parts – These are the most common air conditioning systems in the US today. They have two units, with one designed for outdoors, while the other unit is fixed inside the home or office. The two units are connected using a copper tune and ducts that run to the different rooms in a building.

Windows Herman Nelson AC Unit parts – These are designed to fit on the standard window blowing in cold air indoors, while sucking the hot air out. They resemble a large box attached to one’s window and are available as basic units, which are east to install and maintain and the mini-ductless unit, which is able to cool larger areas.

Cooling-tower Herman Nelson air conditioner parts – These units blows cool air into streams of water, which then trickles through sheets of mesh. As the air cools, some of the water is lost through evaporation and thus the system requires constant addition of water.

Chilled-water Herman Nelson AC Unit parts – These units are placed on the roof of a building or on the backyard. The Units cools water up to 7.2 C. The water is then pumped to the building through pipes on the walls, floors and ceilings. This in turn causes a cooling effect in the house.

With the need to conserve energy, more people are adopting new ways of keeping the indoor environment cool during summer without having to use the Herman Nelson AC Unit parts. Such efforts include using ice cooling system. However the Herman Nelson AC Unit parts cannot be entirely done away with. This is because the air conditioning effect of the units makes the hot weather bearable for most people across the country.

When purchasing a Herman Nelson AC Unit parts, a home owner needs to determine the type of cooling system most appropriate for his home.

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Filtration Systems Can Reduce Maintenance and Downtime.

To strike an interesting analogy, your cooling tower and heat exchanger is what the lungs and heart are to the human body; when either aren’t working properly, it effects other parts of the body and your health suffers. Similarly, when your cooling tower and heat exchanger isn’t clean, the heat exchange process doesn’t work efficiently and the health of your production and process cooling system suffers.

Process cooling systems that rely on cooling towers to dissipate heat from process cooling water accomplish this by drawing massive volumes of air into the cooling tower as the water travels through the fill material on its way back to the basin. Through the natural evaporative process, heat is dissipated from the water before it reaches the water basin from which it is re-circulated through the chiller then through the heat exchanger and back again (kind of like when you sweat while working and letting the air evaporate the perspiration to cool you down). It is important to realize that cooling towers are gigantic air scrubbers that capture all airborne debris that happen to be floating nearby, and if your system doesn’t have effective filtration, the debris can clog the fill and get circulated and trapped in the heat exchanger where it can build-up, restrict water flow and cause your process equipment to malfunction due to overheating.

An example of this is illustrated by a major automotive assembly facility that had faced periodic downtime due to their robotic welding systems not holding tolerances and causing quality problems. After the robotic technicians spent several days trying to initially solve the problem, one of the maintenance workers opened the heat exchanger and discovered that it was impacted with cottonwood seed, insects and other debris – flow had been reduced and the robotic equipment was running hot. Now you might be asking yourself, whey didn’t they have some sort of filtration equipment? The answer is simple; at the time the facility was built, the ambient conditions in that area didn’t require a filtration system. However, as the years went by and the area became more developed and cottonwood tree populations grew, the need eventually surfaced.

The interesting thing to note about this situation is that even though cleaning the heat exchanger got the robotic welding system back on-line and running at peak performance, it didn’t solve the problem. In fact, cleaning heat exchangers is like taking a cold capsule to relieve the symptoms of a cold. Unless you treat the root cause of the problem, the cooling system will suffer time and again. The root cause in this case and in most heat exchanger fouling situations is the cooling tower – stop the debris from getting into the cooling tower and it will protect the entire process cooling system including fill, cooling water, chiller and heat exchanger. With the proper filtration technology, your process cooling system will stay clean and running efficiently all season long.

Selecting The Right Filtration System

It is important to realize that optimizing the ecology and operational efficiency of your evaporative cooling system is best accomplished by combining a chemical treatment regimen with some type of filtration. The reason is that chemical treatment specifically targets suspended solids and particulates of 40 microns and below, while filtration systems are designed to stop larger debris, especially the kind that causes system clogging and fouling.

For cooling tower filtration, there are two general technologies: Water Based Systems for which there are a few different variations and Air Intake Filtration Systems. With water-based systems, the choices include basic water strainers that remove debris by simply passing water through a mesh strainer; sand filtration systems that remove debris by passing the water through sand and centrifugal separators that spin the water and remove the debris through centrifugal action. In contrast, Air Intake Filter Systems remove the debris by filtering the air as it is being drawn into the cooling tower, keeping the debris out of the system in the first place. When considering your filtration options, the following questions should be asked.

• What is the cost associated with downtime due to heat exchanger or cooling tower fouling or clogging? (Knowing this will help you justify your filtration system cost)
• What type of debris is most problematic (can you see it or is it microscopic)?
• Specifically what part of the system does the filter protect?
• Which system provides the greatest filtration surface area (this can directly impact frequency of cleaning – the smaller the filter the more frequently it needs cleaning)
• Can the system be installed without shutting down the cooling tower? (If the cooling tower must be shut down for installation, you need to factor lost productivity into the cost of your filtration system if it’s not being installed during shutdown periods.)
• What is the cost associated with both the filter and installation?
• How easy is the system to install and maintain?

Answering the above questions will help you to fully understand your options and to make the best choice for your operation.In the case of the automotive manufacturer, the solution they selected was the Air Intake Filter system. The reason was that they needed a system that would protect their entire process cooling system including fill material, cooling water, chiller and heat exchanger. When they evaluated water-based systems, they discovered that the options provided varying degrees of protection for the chiller and heat exchanger but didn’t protect the cooling tower where the root of their problem was. If they had selected a water-based system, their cooling tower would have still drawn airborne debris into both the fill and water where the water filter would have captured the debris before it circulated throughout the system. From a maintenance standpoint, that would have solved the heat exchanger problem but it would have done little to reduce maintenance on the cooling tower. Further, when they compared the cost of water based filtration versus air intake filtration technologies, Air Intake Filtration was found to be the more cost effective approach for their operation.

If you are not currently using a filtration system as part of your process cooling system, then any filtration technology will give you more protection than you have now, however, selecting a solution best suited to your operation requires that you know what kind of debris is the problem and where it is getting into the system. As a rule of thumb, ” don’t select a small debris solution to solve a large debris problem”. Conversely, “don’t select a large debris solution to solve a small debris problem”. There is clearly a place for both water based filtration and air intake filtration – be sure you’re selecting the right filtration for your specific need.

If you are looking to protect only your chiller and heat exchanger from airborne debris, then one of the water-based filtration technologies in combination with a good water treatment program can help you manage the debris that gets into the cooling water. If on the other hand, you’re looking for full process cooling system protection, then you should look at Air Intake Filtration – It will stop the debris from getting into your system in the first place.

Air Solution Company developed and patented the first Air Intake Filter specifically engineered to mount to the outside of cooling towers and other HVAC equipment for purposes of stopping the debris before it entered into the system. Since that time, Air Solution Company has been manufacturing and has introduced a variety of other innovative filter systems including its new Fine Mesh Filter which is engineered for use on small and medium size refrigeration coils and machine fan intake housing units. Air Solution Company Randy Simmons is with Air Solution Company, author of articles can be reached at http://www.airsolutioncompany.com