Cooling Tower Online

The advent of air conditioning has brought countless benefits to the world; human comfort being probably the main benefit we think of whenever we talk about air conditioning. The hot summer season spells inconvenience and a lot of sweat at work and at home without air conditioning. On the other hand, the coming of winter signifies torment with the unbearably frigid temperatures that come along with it if one is without air conditioning.

Most office buildings and industrial plants in most countries of the world have air conditioning facilities installed to provide good working environment for their work forces. In temperate countries, modern premises are well equipped with sufficient air conditioning systems to cool both workers and products, especially when the temperature is high all year round.

An office air conditioning system can provide full control of temperature, dust, humidity and air distribution unlike most home cooling systems. Basically, an office air conditioner resembles a room air conditioner where a refrigerant passes through a cooling coil and refrigeration occurs in a separate unit. Multi-storey office buildings on the other hand require larger units and use water-cooled condensers since air-cooled condensers are often not available. A separate cooling tower is usually included in water-cooled condensers in order to conserve water. The condenser water in the cooling tower is cooled by evaporation into the outside air. Sometimes offices have different temperature requirements for different sections. In cases where different sections demand varying temperature settings, two air ducts are used. One duct carries cool air while the other duct carries warm air. Upon entering a space, air is then mixed to the desired temperature as indicated by the thermostat setting. Since space is valuable in any office building, all possibilities are exhausted in order to save this. That’s why duct systems with significantly much higher air velocity and air pressure compared with those used in home systems are being used specifically for office air conditioning.

Today’s modern school buildings have been provided with cooling equipment as well. Some building designs expose the indoor environment to the heat of the sun especially during the summer season. There are many one-storey schools with huge east and west glass walls and a lot of solar exposure through the roof and windows. These types of buildings necessitate the use of air conditioning units for effective teaching and learning, especially during the hot and humid months of summer. Studies show that there is a correlation between the use of air conditioning and the significant decline in absenteeism during the hot summer days. There is also inconclusive evidence that points to the decrease in respiratory ailments where air conditioning is used in offices and schools.

Air conditioning, whether to provide cool air during hot weather or warm air during cold weather, has proven to be one of the most valuable discoveries of our time. It has provided us with comfort and ease in our daily lives. Those who work in offices and teachers and students in schools can concentrate on their respective tasks because of the comfort that air conditioning provides. Can you imagine working in your office without it? You might just freak out!

Michael Russell

Your Independent guide to Air Conditioning [http://air-conditioning-guide.com]

Ever heard of a refrigerator that performs the balancing trick? Yes, a fine balance between storage space, technology and looks is what your Whirlpool Mastermind 30 Elite will give to you. It is a twin door, frost-free refrigerator that comes with technological specials like Twin Tower Cooling and Quick Ice maker and also with many user-friendly conveniences.

Key Features

Capacity: The capacity of Mastermind 30 Elite is a reasonable 280 Liters which provides more than sufficient space for a small family with a big appetite! The freezer space is 70 Liters which makes the freezer also very roomy to hold not only larger quantities of ice but also bigger bricks of ice creams! There are nine storage shelves that give you enough room to arrange your storage conveniently.

Sixth Sense Tower Cooling System: It is a marvelous technology that not only detects the changes in the climate outside but also changes the inside technology accordingly. Its Twin Cooling Towers circulate cool air uniformly in the refrigerator maintaining equal temperature and freshness.

Sixth Sense Auto Power save Mode: You left for your vacation worrying all the time about something that you’re forgetting? Was it your refrigerator that you forgot to switch off? Well not to worry. If you are the proud owner of a Whirlpool Mastermind 30 Elite, then your fridge will do the homework for you. It comes with a technology that understands your absence if the refrigerator door is not opened for more than 24 hrs and switches itself to an auto power save mode reducing the consumption of electricity and at the same time maintaining an even cooling.

Sixth Sense Ice Accelerator: Remember that advertisement where the neighbor comes for ice and it is over? Well, not any more. The Sixth Sense Ice Accelerator in this refrigerator makes ice super quick at the press of a button given at a temperature control panel on the door and even chills your bottles much quicker. Swarovski Crystal Studded Handle: A designer handle is one thing but Swarovski crystals in a refrigerator? Well that’s going a step ahead and that is what our Mastermind 30 Elite does. With Swarovski Crystals in the handle and six elegant colors to choose from this fridge is surely star studded!

Flexi Chill and Ice Twister: A convenient freezer feature, Flexi Chill enables you to manage your freezer space more efficiently by adjusting the storage compartment. A twist ice tray with a container is provided to collect ice more conveniently.

Crisper with Humidity Control: The crisper of this refrigerator is extra large to take care of your big grocery shopping. Even if you decide to store softer vegetables over here, the humidity control keeps them fresh.

User-friendly Features

Door Lock and Alarm: This fridge rings a bell. Each time you or your hurried family leaves the door open, the fridge will start ringing an alarm for you to rush back and close it! Magic Rails and Wheels: The roof of the refrigerator is equipped with railings to make a space not only inside but also on the outside of the fridge to store things or even decorative items. For easier movement, wheels are given at the bottom to shift your refrigerator to whichever convenient location.

Toughened Glass Shelves: Here is a surprise – out of the total shelves in this refrigerator, three are made of toughened glass that can hold weight up to 90kgs. Go ahead, don’t think and just store it in! Drop down Chiller Compartment: The chiller compartment is a drop down one which ensures easy management of things inside.

Magic Light and Deodorizer: Magic light illuminates your Refrigerator in every nook and corner for a clearer vision and beautiful glow and the deodorizer eliminates any kind of odor keeping your food smelling nice and fresh for long.

Conclusion

A technologically advanced refrigerator, the Whirlpool Refrigerator will give you a wonderful combination of looks, convenience and science. By falling in the price bracket of medium priced refrigerators, this beauty is up for grabs. We say, don’t think, take it quick!

Haven’t you already started feeling cold? I mean if a refrigerator is named ‘Iceberg’, then of course you can imagine what it specializes in! Yes, it does specialize in keeping it ultra cool at the touch of a button. The Whirlpool Iceberg 310 Elite is a premium twin door refrigerator that has excellent freezer and cooling features and also a lot of manageable space to take care of everything you mind want to hand it over with!

Key Features

Capacity: The total capacity is a decent 310 liters out of which 75 liters is the freezer capacity. The fridge space is full of adjustable shelves that not only accommodate a larger amount of stuff but also holds them neatly. With its capacity and features, it is sure to take care of a large family.

Electronic User Interface: Picture this, you have put your spatiality ice cream to set in the freezer and you do not want to open it even for ones. Now you realize that you have not changed the temperature to minimum?.what do you do? Open the door and disturb the ice cream? Well, No. With the new Whirlpool Iceberg 310 Elite all you would need to do is stand in front of the fridge and change the freezer temperature on the temperature panel given on the door! That is what technology is all about you see!

Sixth Sense Tower Cooling System: An intelligent fridge, this one would observe the temperature changes outside in the climate and accordingly change its own temperature inside. Also, the twin cooling towers ensure a smooth, balanced flow of cool air to enhance uniform cooling throughout.

Faster Cooling and Chilling: Here is a refrigerator that is unmatched in terms of cooling bottles and churning out ice faster. The Whirlpool Iceberg makes ice exactly 30% faster and chills bottles exactly 33% faster than any other similar capacity refrigerator. It wipes out all the competition when it comes to chilling – thus the name ‘Iceberg’.

Neat and Fresh Accessory Kit: tired of untidy looking poly bags in your refrigerator? Throw them away right this minute we say! The unique Neat and Fresh Accessory Kit is designed in such a way that it would maintain your vegetable accessories in a neater and eye appealing manner. Also faster to sort and pick!

User-friendly Features

Auto Cool System: The Refrigerator is equipped with a unique auto cool feature which automatically sets it in an auto cool mode according to the need.

Deodorizer: This feature takes away the entire odor from your refrigerator keeping the stuff stored in your refrigerator fresh and great smelling for long.

Magic Light: Troubled by insufficient light in your refrigerator? The Magic Lights in your Iceberg will give you a proper and clearer vision in the refrigerator with a beautiful glow to please your eyes.

Door Lock and Beautiful Finishes : The Iceberg comes in a range of exciting finishes and is also equipped with a door lock to prevent your naughty kids to lay hands on overdoses of that yummy treat hidden in you refrigerator!

Storage

The fridge is equipped with a total of 12 adjustable shelves and boxes which give you ample space to store and organize your stuff in a more convenient manner. The refrigerator has divisions like egg tray, chocolate tray, fruit box, covered vegetable box and separators in bottle and shallow bins which hold the stuff from falling off and also give you more organized storage.

Conclusion

Even though the Whirlpool Iceberg 310 L Elite emerges as a clear winner when it comes to faster bottle chilling and ice making and also provides you with very good storage solutions, it does lack a few features like the open door alarm , flexi chill, moisture control, Magi Fresh and Freshonizer technologies etc. However, it is also in the medium price range and thus justifies its cost. At the end of the day however, it is for you to decide that what your priorities are when it comes to choosing a refrigerator and select the one that suites you the most. All in all, it is a good choice.

Vinnit Alex is a well known author and has written articles on Whirlpool Refrigerator, Kitchen Appliances store, Samsung Washing Machine, online shop and many other subjects.

Here in the Phoenix metropolitan area, adverse water conditions require intelligent water treatment strategies to adequately maintain water cooled equipment. Proper management of the characteristics of the cooling tower sump water along with maintaining good tower hygiene in general accomplishes at least four positive things.

1) It avoids wasting excess water.

2) It inhibits scale formation.

3) It controls biological growth.

4) It reduces the corrosion rate of metal parts in the tower.

Let’s discuss how a cooling tower operates to understand why proper water treatment is important.

Most residents in the valley are familiar with an evaporative cooler. Water from the evaporative cooler sump is circulated by a pump over pads in the evaporative cooler and outside air is drawn through the pads. As the air is drawn through the wet pads some of the water evaporates and cools the air. The cooler air is then circulated into the space where cooling is desired. In the process of cooling the air, the water being recirculated across the pads is also cooled.

That is exactly the same principle being employed in the cooling tower, but on a much grander scale. Rejecting large quantities of heat from a building’s mechanical system requires a lot of water to be evaporated. For example, a one hundred ton water cooled chiller operating at full capacity for 24 hours would require the evaporation of more than four thousand gallons of water. That brings us to the subject of the characteristics of the make up water. Make up water is the water supply that replaces the water being evaporated in the cooling tower.

Here in the metro area, water conditions vary widely because our water comes from several different wells as well as surface sources. The water quality may change rapidly over a short period of time because different sources are utilized for the water supply. Each well has different water characteristics and they often vary widely from one side of town to the other. Water that comes from surface sources, like the Central Arizona Project will usually have significantly different characteristics than well water. Surface water quality may also be influenced by weather conditions such as drought or increased runoff.

As water evaporates in the cooling tower all of the non-volatile components stay behind in the sump of the cooling tower. There is actually a lot more in water than what we would call hardness (carbonates). There are also chlorides, suspended dust particles and biological microorganisms. As more and more water is added to replenish the water that is being evaporated, these dissolved and suspended components in the sump water continue to accumulate. If no measures are taken to control the concentration of these components in the water, the solution eventually increases in concentration to a point where “stuff” starts coming out of solution. This “stuff” ends up getting deposited on the surfaces that the water comes in contact with.

Have you ever seen an evaporative cooler where the pads haven’t been changed for a long while? I’ve seen them so encrusted with mineral deposits that the blower could no longer pull air through them. I’ve also seen them produce a bounty of biological growth in the sump water. That is exactly what will happen in a cooling tower without adequate attention to hygiene and an appropriate water treatment strategy.

When solids that are dissolved in water come out of solution they are deposited first on heat exchange surfaces and surfaces where the water is being evaporated. Heat exchangers, water cooled condensers, drift eliminators, the tube bundle in closed circuit cooling towers and the fill in open cooling towers are a few examples of surfaces where this occurs.

Deposition of mineral scale, dirt and biological fouling on any heat exchange surfaces can result in reduced heat transfer, reduced tower efficiency and increased energy costs. While reducing deposition of these is important with regard to the cooling tower, it is absolutely critical to avoid scaling or fouling in the water cooled condenser. Scaling and fouling in the condenser significantly reduces heat transfer capability and will seriously impact energy costs, performance and reliability.

A two part strategy is usually employed to manage the mineral content of the sump water. Part one is to maintain the sump water pH within allowable limits and to feed the correct type and amount of chemicals to help the water keep more of the dissolved solids in solution. Part two is intentionally sending some of the sump water down the drain (blow down). Blow down reduces the highly concentrated mineral content of the sump water by diluting it with the fresh make up water being added to replace the intentionally wasted water.

Biological growth can also become a significant health risk depending on the particular organism involved. Allowing mud and biological growth to accumulate in the sump of a cooling tower can accelerate corrosion of the sump and shorten the life cycle of the cooling tower. It can also provide a haven for microbes to escape the effects of a biocide.

Proper water treatment strategy and good cooling tower hygiene is not a one size fits all solution. The quality of the make up water will require an adjustment of the type of the chemicals and biocide utilized. It may also require changing feed and blow down rates for proper control. In addition, these requirements may be altered by the characteristics of each individual cooling tower installation.

According to Alan Bateman of DB Water Technologies, there are several things a good cooling tower water treatment program should address in order to be effective. They are total dissolved solids (TDS), hardness, pH, chlorides, suspended solids, an appropriate method for biological control and a proper blow down strategy. Each cooling tower manufacturer publishes recommendations for maintaining proper water conditions of the sump water. The advice of a qualified water treatment professional is advised to ensure that each item above is included in your overall strategy for cooling tower water treatment.