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- Draft_tube abstract "In Power Turbines like [Reaction] Or [Kaplan] Or [Impluse]), a diffuser tube is installed at the exit of the runner, known as Draft Tube. In an Impulse turbine the available head is considerably high and there is no significant effect on the efficiency if the turbine is placed a couple of meters above the tailrace. But in the case of Reaction turbines, if the net head is low and if the turbine is installed above the tailrace, there can be appreciable loss in available pressure head. If the pressure at the exit of the turbine is lower than the pressure of fluid in the tailrace, a back flow of liquid into the turbine can result in significant damage. By placing a diffusing pipe at the exit of the runner, the pressure head is increased by decreasing the exit velocity, and both the overall efficiency and the output of the turbine can be improved. A draft tube at the end of the turbine increases the pressure of the exiting fluid at the expense of its velocity. This means that the turbine can reduce pressure to a higher extent without fear of back flow from tail race. The Draft tube gives an advantage of placing the turbine above the tail race so that any required inspections can be made easily. Moreover, it also converts the wasteful kinetic energy at the exit of the runner into the useful pressure energy.".
- Draft_tube thumbnail Draft_tube.jpg?width=300.
- Draft_tube wikiPageID "39518671".
- Draft_tube wikiPageLength "5045".
- Draft_tube wikiPageOutDegree "6".
- Draft_tube wikiPageRevisionID "681653959".
- Draft_tube wikiPageWikiLink Category:Water_turbines.
- Draft_tube wikiPageWikiLink Impulse_turbine.
- Draft_tube wikiPageWikiLink Turbine.
- Draft_tube wikiPageWikiLink File:Conical_diffuser.jpg.
- Draft_tube wikiPageWikiLink File:Draft_tube.jpg.
- Draft_tube wikiPageWikiLink File:Elbow_with_varying_cross_section1.JPG.
- Draft_tube wikiPageWikiLink File:Simple_elbow1.JPG.
- Draft_tube wikiPageWikiLinkText "Draft tube".
- Draft_tube wikiPageWikiLinkText "draft tube".
- Draft_tube hasPhotoCollection Draft_tube.
- Draft_tube wikiPageUsesTemplate Template:Authority_control.
- Draft_tube wikiPageUsesTemplate Template:Refimprove.
- Draft_tube wikiPageUsesTemplate Template:Reflist.
- Draft_tube subject Category:Water_turbines.
- Draft_tube type Thing.
- Draft_tube comment "In Power Turbines like [Reaction] Or [Kaplan] Or [Impluse]), a diffuser tube is installed at the exit of the runner, known as Draft Tube. In an Impulse turbine the available head is considerably high and there is no significant effect on the efficiency if the turbine is placed a couple of meters above the tailrace. But in the case of Reaction turbines, if the net head is low and if the turbine is installed above the tailrace, there can be appreciable loss in available pressure head.".
- Draft_tube label "Draft tube".
- Draft_tube sameAs Savka.
- Draft_tube sameAs Saugrohr_(Wasserbau).
- Draft_tube sameAs m.0vsgjfr.
- Draft_tube sameAs Q12050991.
- Draft_tube sameAs Q12050991.
- Draft_tube wasDerivedFrom Draft_tube?oldid=681653959.
- Draft_tube depiction Draft_tube.jpg.
- Draft_tube isPrimaryTopicOf Draft_tube.