Cooling tower plays a major role in chemical process industry. Convert ppt to pdf in seconds using adobe acrobat online services. Rp m 2 rp m 1 cfm 2 c fm 1 staticpressure 2 static pressure 1 cfm 2 cfm 12 ho rsep ower 2 ho rsepow er 1c fm cfm 3 formulas. The direct contact between vertical air from both sides and the falling water from hot water basin occurs inside the pvc filling so that the heat can be rejected from the tower by the fan. The data from the work can also be used in other courses where the equipment is studied. Cooling tower function water is moved by a pump from the condenser to the cooling tower and back to the condenser tower must reject more heat than the chiller absorbs the compressor adds approximately 25% additional heat design temperature of water leaving the tower is 85 the tower can cool the water down to within 7 of the wetbulb temperature of the ambient air. Introduction a nuclear power plant generates energy in the form of heat which is converted to electricity. Earlier models focus mostly on developing a static solution for how the cooling tower will act at specific instances, but reality is not static. Use our online converter to quickly transform your powerpoint presentations into pdf documents for easy sharing. Als u uw presentatie opslaat als pdfbestand, kan iedereen deze bekijken, zelfs zonder powerpoint. 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.
Consequently, spare cooling water pumps should be provided and their drivers either electric or steam should be very reliable. 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. The fundamental principal employed in accomplishing this removal of heat is the evaporation of water. Geen watermerken, geen limiet omvormen van pdf naar ppt in seconden. More precise values can be obtained by looking at the charts. I remember showing a picture of a cooling tower to a bunch of engineering students and asking th. Maak ppt en pptxpresentaties makkelijk te bekijken door ze om te zetten in pdf. What is the purpose of cooling towers in thermal power plants. Tower maintenance and operation levels also can influence the formation of drift droplets. Use merkel design equation to estimate the height of the tower. Cooling tower seminar presentation for final year project. Today we are going to talk about how you can choose the right cooling tower system for areas with tropical climates. If the hot water temp is constant and the range is specified with a lower cold water temp, then the tower.
Converting powerpoint files to pdfs has never been so easy. Powerpointpresentaties opslaan als pdfbestand office support. Saving your presentation as a pdf lets anyone view it, even if they dont have powerpoint. Most towers have structural frames that support the exterior enclosures casings, motors, fans, and other components. Pdf to ppt, how to convert a pdf to powerpoint adobe acrobat dc. 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. 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.
Nolan, in handbook of fire and explosion protection engineering principles for oil, gas, chemical, and related facilities fourth edition, 2019. If you read this book carefully, you can make any cooling tower design programs by yourself. Ing tower results of the au ervice process, l material, or ad duct, service pro rors, and cti doe use of any info technology ins as february 7gy in roac enti ons o tow ch, inc. Five steps to maintain cooling towers cooling towers are essential for the performance of any industrial air conditioning system. Maak van je pdfpresentaties toegankelijke powerpoint ppt en pptx om ze makkelijk te bewerken. The other is being strong it acts as a foundation for the main structure of cooling tower. Confidential cooling tower drift test report, midwest research institute, kansas city, mo, november 1983. Other factors, which we will see, must be stated along with flow rate m3hr. For example, excessive water flow, excessive airflow, and water bypassing the tower drift. The drive shaft transmits power from the output shaft of the motor to the input shaft of gear reduction units. This 4hour course provides comprehensive information on cooling towers.
The project deals with the performance study and analysis of induced draft cooling tower, which is one of the deciding factors used for increasing the power plant efficiency also modelling and analysis of flow using software. One is to collect the cold water from tower and acts as storage. Cooling tower analysis is a powerful, user friendly, program for the analysis of induced, mechanicaldraft, counterflow cooling towers. A lot of people confuse a cooling tower with a chimney. Sign up free trial today and start converting pdf documents as editable powerpoint. Compared with the use and waste of city water the water consumption can be reduced with about 90 95%. Cooling tower efficiency calculations cooling tower approach. Natural draft cooling tower design and construction in germany past since 1965, present and future christian lang 1. Evaporative cooling of water in a natural draft cooling tower. Treatment and corrosion control of cooling water page 2 control of fouling mud and silt 5. In cooling tower air and water are brought into countercurrent contact which employ natural or mechanical draught. Click on export, choose create pdfxps document, then click on the box that. Basic principles consider the surface of a warm water droplet or film in contact with an air stream. Cooling water systems an overview of cooling towers.
Work with the most accurate pdf to powerpoint converter. With some smaller designs, such as some glass fiber units, the casing may essentially be the frame. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Although abundant water flows through the interior of the tower, outside. Air flows across the falling water and up through the cooling tower as a result of the differential density between the lighter, heated and humidified, air within the tower and the cooler and dryer outside air. Induced draft or mechanical draft cooling towers use some type of mechanical pressure, like a fan system, to push air upward inside the tower. Cooling towers find application in almost all sorts of industries varying from small process plants to the large refineries, petrochemical complexes. 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 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. A cooling tower is an enclosed device for the evaporative cooling of water by contact with the air. A mass transfer coefficient of 80 lbh ft mol ratio is expected.
The humidity is defined as water particles present in air. Go through the blog to know in detail about the best five steps to maintain cooling towers and avail reasonable priced quality cooling towers at kool drop. No watermarks just converting pdf to ppt in seconds. The cold basin is either lies on the top of the soil or lies below the ground level. 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. The fanlaws can be used topredi ctthe pe rformance ofa towerwitha nonstandard motor. Confidential cooling tower drift test report for member of the cooling tower institute, houston, tx, midwest research institute, kansas city, mo, august 1984. F o r m u l a s a n d t a b l es formulasandtables fanlaws. Cooling tower producers typically allow clients to purchase new gearboxes or employ skilled experts who can restore or renew a gearbox with original equipment manufactured oem parts. 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.
Concentration concentration is the increase of impurities in the cooling water due to the evaporative process. Cooling towers of texas provides comprehensive and thorough inspections of wood, fiberglass, steel and concrete cooling towers. The access door and walkway equipped inside the tower are to insure the convenience of maintenance and cleaning. Since the characteristics of cooling tower are slow timevarying, we need to identify the characteristic parameters of the cooling tower operating in march 03 2004. Most towers employ fills made of plastic or wood to facilitate heat transfer by maximizing water and.
Convert your pdfs to powerpoint presentations free and easy to use. Here we explain in full detail how cooling towers operate with example text, pictures, diagrams and principles. For example, a cooling tower sized to cool 4540 m3hr through a. By the term wet cooling tower 1 is meant a mixedflow heat exchanger that works on the principle of the. Power plant cooling system overview for researchers and. Cooling towers of texas the one source for all your. Approach to wet bulb the difference between the temperature of the water leaving the tower and the wet bulb temperature of the air entering. Tsou consulting services john maulbetsch, maulbetsch consulting jessica shi, epri electric power research institute. Cooling water systems an overview of cooling towers a. The software program can be used for the analysis of existing towers or for the preparation of specifications for new towers. The height of the cooling tower is determined from the distance between the top. 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. If you are in doubt about the soundness of the structure of your cooling tower then a thorough inspection and a structural analysis may be needed.
Evaporative cooling of water in a natural draft cooling tower article pdf available in international journal of heat and mass transfer 4523. Natural draft cooling tower design and construction in. Cooling tower seminar presentation for final year project free download as powerpoint presentation. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience.
As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower. The historical derivation of this 15,000 btulh cooling tower ton, as compared to the 12,000 btuih evaporator ton, is based. The water flows down over a series of wooden slats which give a large interfacial area and promote turbulence in the liquid. For water cooling tower experiment, there are several parameters that can be adjusted to observe its effects on the evaporation of water.
Cooling towers are perhaps the most misunderstood part of a power plant by the general public. Increasing the range as a result of added heat requires an increase in tower size. The air is sucked in from below and flows upward when heated by the water. Chalk point cooling tower project, volumes 1 and 2, jhu ppspcpctp16. May 08, 2017 cooling tower producers typically allow clients to purchase new gearboxes or employ skilled experts who can restore or renew a gearbox with original equipment manufactured oem parts. Over the operating temperature range of the cooling tower, c p is almost constant at 4. Cooling water systems an overview of cooling towers 2012 instructor.
The ppt presents the introduction specific objective objective component of cooling tower types of cooling tower working principle application. Range range is determined not by the cooling tower, but by the process it is serving. How do i save a powerpoint file as a 3slidesperpage pdf file. The specific enthalpy of saturated water vapor steam can just be looked up. Rp m 2 rp m 1 cfm 2 c fm 1 staticpressure 2 static pressure 1 cfm 2 cfm 12. Scribd is the worlds largest social reading and publishing site.
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. In naturaldraft towers, airflow through the tower is achieved naturally i. Zet je pdfs naar powerpoint presentaties om gratis en makkelijk in gebruik. Cooling towers of texas utilizes the highest quality pressure treated. The parameters are temperature, flow rate of water, relative. The hybrid cooling tower is a compromise between the wet and the dry cooling tower. In this paper we use a natural draft counter flow cooling tower in investigating the performance of cooling tower in different seasons. Refineries, steel mills, petrochemical manufacturing plants, electric utilities and paper mills all rely heavily on equipment or processes that require efficient temperature control.
Turn your pdf presentations to editable powerpoint ppt and pptx slideshows. The program can be used for the analysis of existing towers or for the preparation of specifications for new towers. Power plant cooling system overview for researchers and technology developers. Induced draft systems can also force air into the tower with a blowthrough or pull it out through a drawthrough. The water consumption or the amount of make up water of a cooling tower is about 0. Cooling tower info pdf, delta cooling towers india your. A cooling towers function is to remove heat from a building or process application that generates heat and must be dissipated. Factors affecting cooling tower performance range, flow and heat load range is a direct function of the quantity of water circulated and the heat load. Understanding the different types of cooling towers. Neat office word, excel, pdf, powerpoint alternative kopen. Cooling tower calculations software program is a powerful, user friendly, software program for the analysis of induced, mechanicaldraft, counterflow cooling towers. Over packing or fill the material over which the water flows as it falls through the tower, so that a large surface area is presented to the air stream. Cooling tower powerpoint free download as powerpoint presentation. Abstract this experiment was conducted to perform energy and mass balance on the cooling tower system and to observe the effects of one of the process variables on the exit temperature of water.
Many of these components may be retrofitted to your existing cooling towers to extend their life or enhance their performance. This produces warm and humid air which leaves the top and condenses into a. For example, a cooling tower sized to cool 4540 m 3hr through a. They reject process heat from the cooling water to atmosphere and keep the water cool. 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. Cooling tower failure or loss of cooling water flow can lead to emergency shutdowns and the potential for hydrocarbon leaks and fires. Learn how to convert pdfs to powerpoint pptx with adobe acrobat dc. The basin is that portion of the cooling tower structure located under the tower that is used for collecting cooled water and which can be used as a location for adding makeup water. The second law of thermodynamics tells us that not all of the heat can be converted to electricity thermodynamic efficiency cannot be 100%. Cooling tower efficiency calculations cooling tower efficiency calculation is described in this article. Make ppt and pptx slideshows easy to view by converting them to pdf.
Column anchor column anchor is a device for attaching the tower structure to the foundation. Amarillo gear service uses oem and all american manufactured parts when restoring gearboxes. Ppt condensors and cooling towers powerpoint presentation. Cooling towers provided in most process industries are typically constructed of ordinary combustible materials e. Gear box reduces the speed of the depending on the fan requirement. The tower thats placed in apparathallen in kemicentrum was investigated and used as a base for the model. See the more detailed explanation of cooling towers systems. But do you know well maintenance of cooling towers is even more important. At these condi tions, the cooling tower rejects 15,000 btuih per nominal cooling tower ton. Again, this will be a first issue releasing the actual engineering approach. How cooling towers function introduction most industrial production processes need cooling water to operate efficiently and safely. Save powerpoint presentations as pdf files office support. A simplified modeling of mechanical cooling tower for.