Differences between Francis Turbine and Kaplan Turbine, Difference Between Pelton, Francis, and Kaplan Turbines, Pelton Wheel| Parts, Types, Working Principle and Efficiency, Difference between Impulse and Reaction Turbine, What is aKaplan Turbine? The rotation speed (RPM) of the Francis turbine is comparatively less than that of the Kaplan turbine. It requires one servomotor for regulation of vanes with turning This turbine needs one Servomotor for the regulation of vanes with turning runner blades. greater due to large number of blades. Here, some of these differences are presented. Francis turbine has fixed runner vanes on the shaft. Loss of energy due to friction of the blades is Kaplan turbine is axial flow turbine i.e. The important applications of Kaplan Turbines are: Also Read: Kaplan Turbines - Components and Working Principle, Also Read: Francis Turbines - Components and Working Principle, Also Read: Factors Affecting the Selection of Hydraulic Machines. Francis turbine requires medium flow rate of water. Comment document.getElementById("comment").setAttribute("id","a561e7dbf598c7bb8bd8d8a13d66918c");document.getElementById("jcc2af67a6").setAttribute("id","comment"); Your email address will not be published. conditions. The tabular form gives a comparison between Francis and Kaplan turbines below. 
When compared to other types of hydraulic turbines, the Kaplan turbine has relatively high efficiency. Francis. Your email address will not be published. Kaplan turbines can work with as little as 0.3m head at a highly reduced performance given that sufficient flow exists. The water at the In his design, he combined automatically adjusted propeller blades and guided vanes to obtain efficiency over a wide range of water flow. Kaplan turbine is compact and smaller in comparison to the Francis turbine. Contact. 
For better understanding, you can see here. the Francis turbine. The design, manufacture, and installation is expensive but can operate for decades. Francis turbine is applied in irrigation water pumping sets to pump water from the ground for irrigation. It is used for high heads ranging from 250 to 1000m. The rotation speed (RPM) of the Kaplan turbine is higher than that of the Francis turbine. This is a smaller version of the last one. He also writes at Edugeneral and VRC Works. These turbines are not only used for electrical production, but also for the pumped storage. Loss of energy due to friction of the blades is In the Kaplan turbine, water enters and exits the turbine runner vane in an axial direction. Learn how your comment data is processed. exits axially producing electricity more efficiently. 
Kaplan turbine is When both the Guide vanes angle and the Runner blade angle may thus be varied, higher efficiency can be maintained over a wide range of operating conditions. Learn how your comment data is processed. 
In other words, it is sealed from atmospheric pressure. Boiler | Types, Applications, Characteristics, Diesel Power Plant | Applications, Advantages, Disadvantages, Components, Fire Tube and Water Tube Boiler | Differences. What Is the Advantage of a Kaplan Turbine Over a Pelton Turbine? The power generated by a Francis turbine is about 800MW, The output power obtained varies from 5 to 200 MW, The rate of speed in a Pelton turbine changes from 65 to 800rpm, The speed of the turbine ranges from 75 to 1000rpm. is axial flow turbine. You will receive a link and will create a new password via email. Francis turbine (adsbygoogle = window.adsbygoogle || []).push({});
. Efficiency of the Kaplan turbine is more than the Francis turbine. Hydroelectricity is the most broadly practiced form of renewable energy. What is the difference between Kaplan and Francis turbine? The responsibility of the casing is to hold and direct the working fluid and maintain the suction presented by the draft tube. Select a countryland IslandsAfghanistanAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelauBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Saint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongo (Brazzaville)Congo (Kinshasa)Cook IslandsCosta RicaCroatiaCubaCuraaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIsle of ManIsraelItalyIvory CoastJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLaosLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacao S.A.R., ChinaMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesiaMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNetherlands AntillesNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth KoreaNorwayOmanPakistanPalestinian TerritoryPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarRepublic of IrelandReunionRomaniaRussiaRwandaSo Tom and PrncipeSaint BarthlemySaint HelenaSaint Kitts and NevisSaint LuciaSaint Martin (Dutch part)Saint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSan MarinoSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia/Sandwich IslandsSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited Kingdom (UK)United States (US)UruguayUzbekistanVanuatuVaticanVenezuelaVietnamWallis and FutunaWestern SaharaWestern SamoaYemenZambiaZimbabwe, By registering, you agree to the Terms of Service and Privacy Policy .*. If you like this article, dont forget to share it on social networks. Also Read: Pelton Turbine - Components and Working Principle. The disposition of the shaft is always vertical. Here we will talk about the differences between Pelton, Francis, and Kaplan Turbines. The number of stages needed in an impulse turbine is less than the required number of stages in a reaction turbine for the same power development. It has adjustable blades.
Francis turbine is a mixed flow turbine whereas Kaplan is an axial flow turbine. It is used in irrigation water pumping sets to A Kaplan turbine requires high discharge for efficient working. Efficiency of Francis turbine is less when In these turbines, the water flows within the runner parallel to the axis of rotation in the runner. It is Pelton turbine is an impulse turbine while Kaplan is a reaction turbine. requirement of head is generally 100 meters. As shown in above diagram of Kaplan turbine, below are its important parts. direction parallel to the axis of rotation of the runner. It is suitable for low head and high flow applications. The efficiency of the Kaplan turbine is very high when compared to other. What must be the maximum dry density of Granular Sub Base & Wet Mix Macadam used What is the Safe Bearing Capacity values for Different Soils? outside rotor shaft. The rotation speed (RPM) is higher than that of In Kaplan turbine, the number of blades in the In Francis turbine, the number of blades in the
At places were head is low and discharge is high, They are very expensive to design, manufacture and install, Kaplan Turbine | Working, Advantage, Disadvantage, Application, Parts. Impulse turbines are most effective when the flow is weak, and the inlet pressure is considerable. The operating speed in reaction turbine is low, while the impulse turbine has a high working speed. The only function of the casing is to prevent splashing of water. Francis turbine runner vanes are not adjustable. It can be designed for a wide range of heads and flows. Kaplan turbine works on very low head, the requirement of head is generally 100 meters. Home / Fluid Mechanics and Hydraulic Machines. Pelton turbine is an impulse type water turbine. Francis turbine requires medium range of water head i.e. The main components of a Kaplan turbine are: The explanation of the above parts is as follows. Electrical Power Production throughout the World. In this turbine waters enters the turbine radically and Required fields are marked *. Kaplan Turbine very large flow rate is required. Francis turbine. Kaplan turbine specific speed varies from 255 to 860. Kaplan turbines can operate under a wide range of head conditions. Pelton turbine was developed by Lester Allan Pelton in the year 1870. The governing mechanism of Kaplan turbine is quite complicated in construction and working. In a reaction turbine, steam flows within the guide mechanism and then flows within the moving blades, while in an impulse turbine, the steam flows within the nozzle and hits the moving blades. of head conditions.
Francis turbine is radial flow turbine but in case of modern Francis turbine water enters radially and leaves the turbine axially which is called as mixed flow turbine. In Francis turbine, water enters the runner The flow of water through the blades combines both radial and axial flow. The Kaplan Turbine uses both kinetic and potential energy, which then is converted into mechanical energy. These differences are presented in the table below.
Kaplan turbine requires high value of specific speed because it is works on low head. it generally varies from 100-600 meters. turbine and it can also be referred to as Australian Professor Viktor Kaplan. Kaplan turbines are widely used for electrical power production. Cavitations are expected to occur due to elevated velocity flow of water. Pelton wheels can be designed for all sizes based on the objective. The number of blades in the runner is generally between 16 and 24. So let's dive in. Francis turbine is a medium head turbine and the head varies between 60 m to 250 m. Kaplan turbine is a low head turbine capable of working under the head less than 60 m. Francis turbine works under medium discharge. The stainless steel as a material to the runner blades may reduce the problem of cavitation to some extent. compared to Kaplan turbine. we can easily adjust the runner vanes as per our requirements. Servomotor is located outside the rotor shaft in Francis turbine. Also Read: Difference Between Reaction Turbine And Impulse Turbine, hi sirs, A full list of Pelton, Francis, and Kaplan Turbines services is available on the Linquip website, which covers all OEM fleets. What is a Pelton Turbine? What is the difference between Kaplan and Pelton turbine? In the Francis turbine, water enters the runner vanes radially and exits the turbine axially; therefore, it can be described as a mixed flow turbine. Types of Foundation for Buildings and their Uses [PDF], Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results, 16 Types of Heavy Equipment Used in Construction, Methods of Rainwater Harvesting [PDF]: Components, Transport, and Storage, Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates, Carbon Concrete: Production and Advantages, Timbercrete: Components, Advantages, and Applications, Construction Tolerances for Cast-in-Place Concrete Members in a Building.
