enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Pelton wheel - Wikipedia

    en.wikipedia.org/wiki/Pelton_wheel

    The impulse energy of the water jet exerts torque on the bucket-and-wheel system, spinning the wheel; the water jet does a "u-turn" and exits at the outer sides of the bucket, decelerated to a low velocity. In the process, the water jet's momentum is transferred to the wheel and hence to a turbine. Thus, "impulse" energy does work on the turbine.

  3. Turbine - Wikipedia

    en.wikipedia.org/wiki/Turbine

    A steam turbine with the case opened Humming of a small pneumatic turbine used in a German 1940s-vintage safety lamp. A turbine (/ ˈ t ɜːr b aɪ n / or / ˈ t ɜːr b ɪ n /) (from the Greek τύρβη, tyrbē, or Latin turbo, meaning vortex) [1] [2] is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work.

  4. Steam turbine - Wikipedia

    en.wikipedia.org/wiki/Steam_turbine

    Other variations of turbines have been developed that work effectively with steam. The de Laval turbine (invented by Gustaf de Laval) accelerated the steam to full speed before running it against a turbine blade. De Laval's impulse turbine is simpler and less expensive and does not need to be pressure-proof. It can operate with any pressure of ...

  5. Water turbine - Wikipedia

    en.wikipedia.org/wiki/Water_turbine

    An impulse turbine is one in which the pressure of the fluid flowing over the rotor blades is constant and all the work output is due to the change in kinetic energy of the fluid. Prior to hitting the turbine blades, the water's pressure ( potential energy ) is converted to kinetic energy by a nozzle and focused on the turbine.

  6. Compounding of steam turbines - Wikipedia

    en.wikipedia.org/wiki/Compounding_of_steam_turbines

    Fig-3: Schematic Diagram of Pressure compounded Impulse Turbine. The pressure compounded Impulse turbine is also called a Rateau turbine, after its inventor. This is used to solve the problem of high blade velocity in the single-stage impulse turbine. It consists of alternate rings of nozzles and turbine blades.

  7. Axial turbine - Wikipedia

    en.wikipedia.org/wiki/Axial_turbine

    The losses occur in an actual turbine due to disc and bearing friction. Figure shows the energy flow diagram for the impulse stage of an axial turbine. Numbers in brackets indicate the order of energy or loss corresponding to 100 units of isentropic work (h 01 – h 03ss). Energy flow diagram for the impulse stage of an axial turbine

  8. Kat Dennings 'Had No Idea' What “Sex and the City ... - AOL

    www.aol.com/kat-dennings-had-no-idea-201608318.html

    Related: Kat Dennings and Andrew W.K.'s Relationship Timeline “It was very interesting because, of course, I wasn’t allowed to watch Sex and the City as a child,” Dennings, now 38, told the ...

  9. Turbomachinery - Wikipedia

    en.wikipedia.org/wiki/Turbomachinery

    Impulse turbomachines do not require a pressure casement around the rotor since the fluid jet is created by the nozzle prior to reaching the blading on the rotor. A Pelton wheel is an impulse design. A Reaction Turbine Stage [1] Reaction Turbomachines operate by reacting to the flow of fluid through aerofoil shaped rotor and stator blades. The ...