In cooling tower air and water are brought into countercurrent contact which employ natural or mechanical draught. Closed circuit systems differ in that the return fluid often water, or sometimes water mixed with glycol circulates through the tower structure in a coil, while cooling tower water recirculates only in. Cooling towers can be classified in two types 1 natural draught cooling tower. Issue 1ive read a lot of material on cooling towers at this point whe. A cooling tower is an equipment used to reduce the temperature of a water stream by extracting heat from water and emitting it to the atmosphere. See the more detailed explanation of cooling towers systems, diagrams, pictures and principles below table of contents what is a cooling tower how do cooling towers work. Water treatment for cooling towers 1 of 2 water treatment helps ensure that heattransfer surfaces perform to design specifications by amanda meitz, senior microbiologist, nalco diversified technologies, inc. The major concern during i study the cooling tower theory was how to computerize the cooling tower theory from the calculation of ntu to the cooling tower performance analysis.
This map displays information about registered cooling towers within new york state. Scribd is the worlds largest social reading and publishing site. Hi there, im involved a project where i must determine the power requirements of a forced draft cooling tower that uses a large fan. Evaporators are the large things usually seen outside. This project standards and specifications covers the minimum process design requirements, field of application, selection of types, design consideration and. For large cooling towers especially power plants, water treatment is the key area for energy conservation. Cooling tower fan blade pitch angle is the angle made by the fan with the plane.
Since the cooling towers are based on the principles of evaporative cooling, the maximum cooling tower efficiency depends on the wet bulb temperature of the air. Drift eliminators are installed to prevent water entrained in the air from leaving the system. Cooling tower water treatment going green what is a cooling tower hot. Ppt heating, ventilation and air conditioning hvac hvac. Cooling tower fans fans must overcome system resistance. Because of this pressure difference air enters in to the cooling tower. View and download powerpoint presentations on cooling tower ppt. Electrical equipment cooling towers this powerpoint. Cooling tower fan blades pitch angle is varied depending on seasonal requirements. Find powerpoint presentations and slides using the power of, find free presentations research about cooling tower ppt. The following design data is required to select cooling towers. Cooling tower parts components functions sara cooling tower. Kool drop is a leading manufacturer frp round and square shape cooling towers based on induced draftforced draft counter flow design. In a welldesigned and welloperated power plant, the condensercooling system has an important role in the generating capacity and efficiency of the plant.
Cooling towers are placed outside the building, either on the roof or adjacent to the building, but they work on essentially the same principles as the massive industrial cooling towers used to remove. If you continue browsing the site, you agree to the use of cookies on this website. They also prevent the sunlight from penetrating in the cooling tower. Remove this presentation flag as inappropriate i dont like this i like this remember as a favorite. Cooling tower seminar presentation for final year project hvac. Cooling tower basics and common misconceptions introduction in comparison with most other industrial equipments, the water cooling tower is a simple device, based on the direct contact of two of the earths most common substances. A tower cools water by evaporation by drawing high volume air across the water surface, which transfers heat to the atmosphere. Water directly contacts surrounding air and a very small part 12% evaporate. The following are the cooling tower parts details including the cooling tower parts name and their functions. Artistic to scientific design of cooling towers the. E v e r y t h i n g y o u s h o u l d k n o w c ool i ng t ow e r s a r e br oa dl y us e d t o c ool w a t e r a t l ow c os t us i ng hum i di t y.
Cooling tower india, cooling tower manufacturers, industrial. Closed circuit systems differ in that the return fluid often water, or sometimes water mixed with glycol circulates through the tower structure in a coil, while cooling tower water recirculates only in the tower. This system sends cooling water out of the equipment and into a pond or cooling tower, which is open to the atmosphere. The data is selfreported by ownersproperty managers of cooling towers in service in new york state. An overview of the different types of fan drivers offered by a cooling tower manufacturer one of the components offered by a cooling tower manufacturer is the fan.
Cooling tower pdf software free download cooling tower pdf. In august 2015 the new york state department of health released emergency regulations requiring the owners of cooling towers to register them with new york state, in addition the regulation includes. Abstract this paper presents detailed methodology of a induced draft cooling tower of counter flow type in which its efficiency, effectiveness, characteristics are calculated. View and download marley aquatower 490a user manual online. Cooling tower maintenance legionella awareness powerpoint. A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear bomb, in which the chain reaction occurs in a fraction of a second and is uncontrolled causing an explotion. A free powerpoint ppt presentation displayed as a flash slide show on id. Download premium images you cant get anywhere else. Enexio a cooling tower is a device which is used to extract excess heat from the process water stream and rejects this excess heat to the atmosphere. As the universal solvent, water is capable of dissolving a variety of materials as well as holding. Importantly in this field it the knowledge of theories relative to the physical characteristics of natural air and thermal characteristics of water in plants, before starting the designsizing a cooling tower. Here we explain in full detail how does a cooling tower work, cooling tower working principles with example text, pictures and diagrams. This section provides an introduction of cooling tower designs. Cooling tower process tower basin distribution deck basin tower fill induced draft fan recirc pump return water supply water a tower cools water by evaporation by drawing high volume air across the water surface, which transfers heat to the atmosphere.
The next generation of 3d trasar technology provides smart sensor technology, touch screen user interface, improved connectivity and seamless integration into advanced remote monitoring, reporting and alarming. Cooling tower powerpoint templates and cooling tower powerpoint backgrounds for presentations ready to download. With respect to cooling, no longer are plants being built with oncethrough cooling systems but rather the choice is either a cooling tower or aircooled condenser. Typical hvac cooling system makeup meter air handler chiller tower chemical control chilled loop bleed pump pump. Range of cooling in f t1 t2 area wet bulb temperature in f twb the design heat load is determined by the flow rate, and the range of cooling, and is calculated using the following formula. Most hvac systems remove heat from your home using a device called a cooling tower. Kool drop is a famous cooling tower brand in india. A presentation on cooling tower renovation work slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Normally during summer season the air density is low. The term induced draft denotes that air is drawn by fans through the flow of falling water and up and out of the cooling tower. A cooling tower is a device used in industry to cool hot water by partial evaporation before reusing it as a coolant. It is a wooden, steel or concrete structure and corrugated surfaces or baffles or perfora ted trays are provided inside the tower for uniform distribution. Ppt cooling tower maintenance legionella awareness.
Ppt cooling tower manufacturer powerpoint presentation. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wetbulb air temperature or, in the case of closed circuit dry cooling towers, rely solely on air to cool the working fluid to near. There are a few kinds of cooling towers, but most work using evaporation and are very energy efficient. Cooling tower calculations software program is a powerful, user friendly, software program for the analysis of induced, mechanicaldraft, counterflow cooling towers. Today we are going to talk about how you can choose the right cooling tower system for areas with tropical climates.
Ppt heating, ventilation and air conditioning hvac. This heating system sizing calculator is based on the ashrae standards. Cooling tower seminar presentation for final year project free download as powerpoint presentation. Cooling tower pdf, free cooling tower pdf software downloads, page 2. Two manual shutoff switches for fans should be installed at the cooling tower, one at grade and one at the top deck.
Ppt cooling tower maintenance legionella awareness powerpoint presentation free to download id. Cooling towers should be located away from process equipment and furnaces. Cooling towers continuing education for professional. Xls, ppt, txt and even html, to pdf file with the click of a button. Humidificationcooling tower ppt download slideplayer.
Here evaporation occurs, removing heat along with the evaporated water. Wet versus dry cooling towers cooling technology institute. Heating, ventilation and air conditioning hvac hvac systems and components section 7 world health organization 7. Download residential heating and cooling load calculation excel sheet according to 2001 ashrae fundamentals handbook. Download ashrae heat load calculation excel sheet xls. Oct 30, 20 a presentation on cooling tower renovation work slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The technical data has been taken from a mechanical draft cooling tower. Classik cooling towers is one of the leading manufacturers of energyefficient cooling tower in coimbatore, india. If you read this book carefully, you can make any cooling tower design programs by yourself. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere.
The fill material in the tower should be noncombustible. Air intake louver is a part of the cooling tower that serves as a block for water splashout, noise, and debris. Types and performance evaluation, efficient system operation, flow control strategies and energy saving opportunities, assessment of cooling towers 7. Cell cell is the smallest subdivision of a cooling tower bounded by exterior walls and partition walls which can function as.
It is then combined with makeup water, which replaces the evaporated water, and is sent through the system again. Training session on energy equipment cooling towers presentation from. Again, this will be a first issue releasing the actual engineering approach. A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact with each other in order to reduce the waters temperature. Dec 25, 2011 a cooling tower is an equipment used to reduce the temperature of a water stream by extracting heat from water and emitting it to the atmosphere. We export industrial cooling towers that are less spaceconsuming by providing effective cooling. This evaporation increases the air temperature and humidity and decreases the temperature of the water making it possible to cool below the normal. Ashrae table 5 shading coefficients and ufactors for residential windows. Find highquality cooling tower stock photos and editorial news pictures from getty images. The software program can be used for the analysis of existing towers or for the preparation of specifications for new towers. Calculating fan power involved for a cooling tower posted in student.
Cooling tower bureau of energy efficiency 5 syllabus cooling tower. A cooling tower is a semienclosed device for evaporative cooling of water by contact with air. Heat is removed from the water circulating in the system by evaporating a small portion of it. A heat rejection device, which extracts waste heat to the atmosphere through the cooling of a water stream to a. Almost 14 th of makeup water water added in a cycle to substitute water losses in a cooling tower is dissipated 25. So the fan blade pitch angle is increased to increase the capacity of the fan. Cooling towers continuing education for professional engineers.
The basics of cooling tower water treatment the purpose of a cooling tower is to remove the heat generated by an hvac system cooling of compressor refrigerant and heat generated by the compressor itself. The wetbulb temperature is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. Presentation on water cooling tower ppt video online. Nov 25, 2014 the cooling tower moves heat from the water to the exhausting air thru evaporation. Featured product adiabatic coolers from paharpurspartium can reduce energy consumption by up to 40% or reduce water usage by up to 80%. Cooling tower process tower basin distribution deck basin tower fill induced. By alok kumar swain mechanical engineer brmiit bbsr. A cooling tower is an essential piece of equipment in many production facilities used to bring down the temperature of the water used in many different process so it. The water flows down over a series of wooden slats which give a large interfacial area and promote turbulence in the liquid. The fundamentals of water treatment technology a training workshop for stasmo presented by.
Other types of water losses were therefore neglected. Cooling tower pdf software free download cooling tower. Water pumps and their switchgear should be located at least 3 m from the base of the cooling tower. In a welldesigned and welloperated power plant, the condenser cooling system has an important role in the generating capacity and efficiency of the plant.
The goal of the experiment the goal of this experiment is to determine heat and mas balance for countercurrent airwater system in a packed cooling tower. In this type of cooling tower, fan is not used for circulating air but here, by enclosing the heated air in the chimney and it will create pressure difference between heated air and surrounding air. Cooling towers overcome most of these problems and therefore are commonly used to dissipate heat from watercooled refrigera tion, airconditioning, and industrial process systems. Calculating fan power involved for a cooling tower. This calculator will calculate heating loads for air. Which cooling tower is best for tropical climates the climate conditions can somehow affect the performance of cooling towers due mainly to the fact that they make use of the surrounding air as well as water supply to do their job.
1071 209 228 93 1535 1367 403 1514 117 800 423 1343 336 487 883 1265 690 1590 117 1248 416 103 1586 44 422 528 966 114 553 659 532 159 845