1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Physic- Efficiency

  1. Nov 30, 2005 #1
    A coal fired plant generates 700 MW of electrical power. The plant uses 5.8 * 10^6 kg of coal each day. The heat combustion of cal is 3.3 * 10^7 J/kg. The steam that drives the turbines is at a temperature of 320 C, and the exhaust water is at 45 C. Note: 700 MW= 7.0 * 10^8 J/s = 6.0 * 10^13 J/day.

    What is the actual efficiency of the plant for generating electrical power?
    What is the ideal efficiency of the plant for generating electrical power?
     
  2. jcsd
  3. Dec 1, 2005 #2

    russ_watters

    User Avatar

    Staff: Mentor

    What have you calculated so far?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?