Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Thermodynamics - heat transfer calculation

  1. Jun 19, 2010 #1
    1. The problem statement, all variables and given/known data
    to conserve heat energy in a home, R=2.8 Pink Batts are replaces by R=3.2 Pink Batts. calculate the percentage increase in reduction of heat loss per 1.0m^2 of wall when the temperature difference is 15degrees celsius.


    2. Relevant equations
    P=A(Th-Tc)/ R


    3. The attempt at a solution
    i tried to do this:
    1(15)/ 6= 2.5
    i do not think this is the right answer, it's a question form my last year's exam paper and i really need to know this for my exam in 2 days..plz help =] thx
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted