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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
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