On the other hand, cooling towers are much larger than tradional hvac systems and are used to remove heat from cooling tower water systems in petroleum refineries, plants, natural gas processing plants, petrochemical plants, and other industrial processes and facilites. Tradional hvac heating and cooling systems are used in schools, large office buildings, and hospital. It must also provide the energy head necessary to raise water from a low to a higher static head level. It is a large tall hyperboloid type cooling tower having widemouthed. Cooling tower fundamentals spx cooling technologies. The technical data is taken for mechanical draft cooling tower. View and download marley aquatower 490a user manual online.
Cstn september 2002 a client had a large, threecell cooling tower system that was having problems maintaining conductivity. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. Cooling tower pdf, free cooling tower pdf software downloads, page 2. O the water pump is the o heart of the cooling system. Abstract this paper presents detailed methodology of a induced draft cooling tower of counter flow type in which its efficiency, effectiveness, characteristics are calculated. Drift loss of the cooling tower is normally provided by the cooling tower manufacturer based on the process design. Download cooling tower design we are a sharing community. 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. At these condi tions, the cooling tower rejects 15,000 btuih per nominal cooling tower ton. Nowadays, the cooling tower is a necessity for industries that somehow depend on water.
In open circuit systems the recirculating water returns to the tower after 1 one ton of refrigeration is equal to 12,000 btuhour. Rp m 2 rp m 1 cfm 2 c fm 1 staticpressure 2 static pressure 1 cfm 2 cfm 12. Cooling towers can be split into two distinct categories. Hyperboloid shape aids in accelerating the upward convective air flow, which improves cooling efficiency. For example, a cooling tower sized to cool 4540 m 3hr through a. The historical derivation of this 15,000 btulh cooling tower ton, as compared to the 12,000 btuih evaporator ton, is based. The cooling tower had two possible makeup water sources. Air intake louver is a part of the cooling tower that serves as a. Opting for infamous cooling tower suppliers would be the ultimate choice. Cooling tower pdf software free download cooling tower pdf.
For the tower piping circuit, the pump must overcome the piping flow friction loss. 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. Column anchor column anchor is a device for attaching the tower structure to the foundation. Range range is determined not by the cooling tower, but by the process it is serving. 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 cooling towers can perform their work in ample ways by using a varied type of advanced technologies. What can the fan belt do for the engines cooling o system. 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. In every application the target portion of the nozzle should be located at the correct distance above the top of the cooling tower fill to obtain maximum. Again, this will be a first issue releasing the actual engineering approach. 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. Cooling tower pumping and piping baltimore aircoil company.
Classik cooling towers is one of the leading manufacturers of energyefficient cooling tower in coimbatore, india. Design of mechanical draftcooling tower and determination of. Here we explain in full detail how cooling towers operate with example text, pictures, diagrams and principles. Quick guide to frp square cooling tower and its parts one of the most significant components of any industrial process is frp square cooling tower. Cooling tower analysis is a powerful, user friendly, program for the analysis of induced, mechanicaldraft, counterflow cooling towers. F o r m u l a s a n d t a b l es formulasandtables fanlaws. The following are the cooling tower parts details including the cooling tower parts name and their functions. Other factors, which we will see, must be stated along with flow rate m3hr. Understanding key components of cooling towers and.
Cooling towers are a very important part of many chemical plants. Ppt condensors and cooling towers powerpoint presentation. A cooling tower is a heat rejection device which rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. Scribd is the worlds largest social reading and publishing site. This manual is not intended to be allencompassing and thoroughly definitive. Cooling tower control problem by james mcdonald, pe, cwt originally published. A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. The fanlaws can be used topredi ctthe pe rformance ofa towerwitha nonstandard motor. A cooling tower is a heat rejection device which rejects waste heat to the atmosphere through the cooling of a. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower.
Cooling tower parts components functions sara cooling tower. 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. Drift eliminators are installed to prevent water entrained in the air from leaving the system. Air intake louver is a part of the cooling tower that serves as a block for water splashout, noise, and debris. The technical data has been taken from a mechanical draft cooling tower. Training session on energy equipment cooling towers presentation from the. Estimate evaporation loss and makeup water requirements article pdf available april 2017 with 9,405 reads. This system sends cooling water out of the equipment and into a pond or cooling tower, which is open to the atmosphere. 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. Cooling is accomplished through the latent heat of vaporization. Cooling water systems an overview of cooling towers. In a welldesigned and welloperated power plant, the condensercooling system has an important role in the generating capacity and efficiency of the plant.
Cooling tower efficiency calculations cooling tower approach. If it is not available it may be assumed as for natural draft cooling tower d 0. The present paper is a detailed methodology for thermal design of cooling tower. Download fulltext pdf download fulltext pdf cooling towers. Here evaporation occurs, removing heat along with the evaporated water.
Cooling towers can be classified in two types 1 natural draught cooling tower. Natural draught tower utilize the principle of buoyancy to achieve the desired effect. It is then combined with makeup water, which replaces the evaporated water, and is sent through the system again. Below is what will take you to a leading cooling tower supplier. This section provides an introduction of cooling tower designs. Compelling need for the innovation the present radiators used in automobiles and airconditioners are huge because of which the streamlined nature of the vehicle or the structure and body of the cooling system is compromised. The primary task of a cool ing tower is to reject heat into the atmosphere. The program can be used for the analysis of existing towers or for the preparation of specifications for new towers. 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. Concentration concentration is the increase of impurities in the cooling water due to the evaporative process. This manual is not intended to be all encompassing and thoroughly definitive.
The basic cooling tower process is outlined in figure 1. Consequently, spare cooling water pumps should be provided and their drivers either electric or steam should be very reliable. 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. 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. A tower cools water by evaporation by drawing high volume air across the water surface, which transfers heat to the atmosphere. Download the working principle of cooling tower pdf. Ppt, txt and even html, to pdf file with the click of a button. Find highquality cooling tower stock photos and editorial news pictures from getty images. To purchase them for commercial purpose, here we have collect some vital information. Cooling tower heat transfer fundamentals power engineering.
An hvac cooling tower is used for disposing or rejecting. You could see the location of the cooling tower parts and how they are connected. Cooling water systems an overview of cooling towers 2012 instructor. Cooling tower failure or loss of cooling water flow can lead to emergency shutdowns and the potential for hydrocarbon leaks and fires. Water vapor evaporates, leaving dissolved or suspended solids in the recirculating cooling water. In the words of an excellent reference manual on cooling, evaporation is utilized to its fullest extent in. 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. If you read this book carefully, you can make any cooling tower design programs by yourself. Highefficiency crosscorrugated pvc film packing materials first introduced in the u. Download premium images you cant get anywhere else.
482 71 471 1342 1496 1284 240 477 1425 78 1516 38 1005 177 1018 296 1116 238 9 1154 796 1543 624 754 1453 1334 101 949 852 1467 789 633 112 1036 99 1373 1475 1134 1156 1216 1344 40 1202 129 466 219 1195