<span id="2s198"></span>

  1. <em id="2s198"></em>

    Google Search for this blog

    Wednesday, June 28, 2017

    Why overall efficiency of thermal power plant is very low?

    Are you wondering why the overall efficiency of the thermal power plant is very low? Reason?

    The major part of the electricity that the world is producing nowadays comes from Thermal Power Plant (which works on the Rankine Cycle or Modified Rankine Cycle).

    The principal parts of the Thermal Power Plants are

    • Boiler (to generate steam from water)
    • Turbine (where the steam expands and produces the work in form of rotation of shaft which in turn rotate the generator)
    • Condenser (where a major part of the heat is rejected to convert steam into the water for reuse)
    • Feed Pump (to pump back the feed water to a boiler for steam conversion) 
    All parts except the condenser have 80 % to 90 % efficiency. The only condenser has 50% efficiency. 

    Overall Efficiency: Multiplication of all efficiency of the plant's principal parts
    Thus overall efficiency comes down to 30 % - 40 %

    No comments:

    Post a Comment

    If you have any question, suggestions, Please write here