Rp m 2 rp m 1 cfm 2 c fm 1 staticpressure 2 static pressure 1 cfm 2 cfm 12. Project standards and specifications page 7 of 34 rev. Please note that each individual cooling tower requires its own entry into the cooling tower registry. Cooling tower plays a major role in chemical process industry. A free powerpoint ppt presentation displayed as a flash slide show on id.
The ppt presents the introduction specific objective objective component of cooling tower types of cooling tower working principle application. Earlier models focus mostly on developing a static solution for how the cooling tower will act at specific instances, but reality is not static. 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. Treatment and corrosion control of cooling water page 3 section 1 cooling water treatment introduction this document is based on the practical experience of chemical engineers working in the field in the main industrial centres in the united kingdom, from small factory units with cooling systems of a few cubic metres, to. The fanlaws can be used topredi ctthe pe rformance ofa towerwitha nonstandard motor. Simulation of a counterflow and crossflow cooling tower by the stepwise integration method montri pirunkaset abstract the stepwise integration method is an approximation method for determining the water temperature in the fill layers for a counterflow cooling tower and in the fill cells for a crossflow cooling tower. Dec 10, 2016 thank you for interesting in our services. Conclusion this experiment has been conducted to study the effects of heater power on the exit.
The cooling component of this new electricity station is a natural draft cooling tower 200 m high, the tallest cooling tower and the largest shell structure in the world. The data from the work can also be used in other courses where the equipment is studied. Tsou consulting services john maulbetsch, maulbetsch consulting jessica shi, epri electric power research institute. Technical information for cooling towers using recycled water pdf. Cooling tower process is generally related with vapor pressure of water and humidity. Quaternary biocides neutralize most corrosion inhibitors. Determination of optimum height for counter flow cooling tower ashraf kotb department of mechanical power engineering, ain shams university, cairo, egypt abstract a model for counter flow cooling tower is present with treatments to recover the simplifications in the literature. Those theories are briefly described in this guideline to provide the basic understanding of its calculation. Back to top crossflow cooling towers flow diagram in crossflow cooling tower systems the water vertically flows through the fill media while the air horizontally flows across the falling water. Scribd is the worlds largest social reading and publishing site. Water pumps pump must have a shaft seal most pumps are made from cast iron most centrifugal pump impellers are made of bronze the eye of the impeller must be under water during startup if the pump is located higher than the sump, the pump must be filled with water before starting whirlpool action in the pump is called vortexing.
Sulfur based biocides do not perform well in alkaline water. Cooling tower efficiency calculations cooling tower approach. Ajit prasad dash1, kishor kumar panda2, ajay kumar yadav3, vikas sharma4 1assistantprofessor, 2,3,4b tech mechanical students department of mechanical engineering gandhi institute of engineering and technology, gunupur, rayagada, odisha, india. 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. Pp presentation will be available on the website tutorials.
Cooling tower powerpoint free download as powerpoint presentation. Warm recirculating water is sent to the cooling tower where a portion of the water is evaporated into the air passing through the tower. A survey of wet cooling tower literature was performed to develop a simplified method of cooling tower design and simulation for use in power plant cycle optimization. Cooling towers overcome most of these problems and therefore are commonly used to dissipate heat from watercooled refrigera tion, airconditioning, and industrial process systems. Reducing water use in cooling towers and evaporative condensers 3 with cooling towers, it is worth checking whether the water actually used is in balance with what should be used. Technical information for cooling towers using recycled water. Cooling tower seminar presentation for final year project hvac. A water balance for a cooling tower can be summarised as.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. 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. Cooling tower fans are normally made from aluminum, fiber. Ppt cooling water treatment powerpoint presentation free. Cooling tower seminar presentation for final year project free download as powerpoint presentation. A tower cools water by evaporation by drawing high volume air across the water. 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. Today we are going to talk about how you can choose the right cooling tower system for areas with tropical climates. Electrical equipment cooling towers this powerpoint training. The first cooling towers were woodclad structures at coal mines.
In the report the theory of heat exchange in wet cooling towers is briefly sumnarized. 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. A tower cools water by evaporation by drawing high volume air across the water surface, which transfers heat to the atmosphere. They reject process heat from the cooling water to atmosphere and keep the water cool. Cooling water systems an overview of cooling towers. The bechers have been photographing cooling towers since the 1960s. Some additional calculation such as water makeup, fan and.
Types and performance evaluation, efficient system operation, flow control strategies and energy saving opportunities, assessment of cooling towers 7. The cooling tower is not appropriate in residential air conditioning systems because this cooling tower could produce minor water loss. Training session on energy equipment cooling towers presentation from the. Makeup makeup is water added to the circulating water system to replace. Determine the effect on the mass transfer coefficient k water temperature heat load 80% mass transfer where x 0. This document has been prepared to assist the owners and operators of cooling towers and evaporative cooling systems in reducing the water consumption of. Cooling towers are used to reject heat through the natural process of evaporation. Again, this will be a first issue releasing the actual engineering approach. We are a nonprofit group that run this website to share documents.
F o r m u l a s a n d t a b l es formulasandtables fanlaws. The simplicity of these forms and their hermetically sealed external skins create an impressive, monumental effect. Cooling tower sizing can simply be done by graphical methods. If you read this book carefully, you can make any cooling tower design programs by yourself. Cooling tower seminar presentation for final year project. The primary task of a cool ing tower is to reject heat into the atmosphere. Determination of optimum height for counter flow cooling tower.
One helpful means to that end is the water cooling tower. Simulation of a counterflow and crossflow cooling tower by. Factors affecting cooling tower performance capacity utilization amount of water circulated range determined by the process it is serving determined by heat load and water circulation rate thus range. Water cooled condenser and cooling tower tq diagram. The cooling tower must be adequately sized to reject this same amount of heat to the atmosphere. 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 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. Pdhonline course m121 4 pdh cooling water systems an overview of cooling towers 2012 instructor. The tower thats placed in apparathallen in kemicentrum was investigated and used as a base for the model. To reduce the drift from cooling towers, drift eliminators are usually incorporated into the tower design to remove as many droplets as practical from the air stream before exiting the tower. Baltimore aircoil is the leading global manufacturer of cooling towers, closed circuit cooling towers, evaporative condensers, and ice thermal storage systems. 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. Design of mechanical draftcooling tower and determination of thermal efficiency prof.
Sdcwa has published this document to assist customers, who are considering converting to recycled water by providing detailed information on water quality and. Cooling tower efficiency calculations cooling tower efficiency calculation is described in this article. Power plant cooling system overview for researchers and technology developers. Design of mechanical draftcooling tower and determination of. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere.
If you continue browsing the site, you agree to the use of cookies on this website. The water consumption rate of a cooling tower system is only about 5% of that of a oncethrough system, making it the least expensive system to. Cooling tower bureau of energy efficiency 5 syllabus cooling tower. For example, a cooling tower sized to cool 4540 m3hr through a. Purpose the purpose of this document is to provide guidance on entering and updating data into the new york state cooling tower registry. Power plant cooling system overview for researchers and. Reducing water use in cooling towers and evaporative condensers. A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the. Cooling towers are a very important part of many chemical plants.
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