Autor Thema: Power heating system  (Gelesen 1427 mal)

gkoper

  • Gast
Power heating system
« am: 14 April 2015, 08:01:31 »
I have connected two DS1820 digital thermosensors to my RPi running FHEM. The thermistors are connected to in- and output of the heater. By taking the difference between these two temperatures and multiplying by the heat capacity (assuming a more or less constant flow rate) I can determine the delivered power. Who can tell me how to make a plot of the temperature difference and eventually multiply this with a constant? There are some remarks here and there on the web but these are too cryptic for me: I would like to see a set of instructions that tells me how to do it.

Thanks in advance!

 

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