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Relation between temperature loss rate and U value (transmittance)

  1. Sep 6, 2011 #1
    I am monitoring a building with temperature sensors.
    Observing the inside and outside temperatures I see that when the average temperature difference from inside to outside is 9.4K the speed at which the inside temperature decreases is 0.16 K/hour.

    I would like to know if it is possible, with the data I've got, to calculate the U value (W/m2K) of the building so that I can understand its performance and compare it with other buildings.

    Since the temperature difference between outside and inside is not constant during the day I am also wondering if using the average temperature difference is a good approximation for my problem.

    Thanks
     
  2. jcsd
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