<br><font size=2 face="sans-serif">Dear TRNSYS users,</font><br><br><font size=2 face="sans-serif">I have a question about the Type 557
Vertical U-Tube Ground Heat Exchanger, the parameter called "Initial
surface temperature": I believe that the ground surface temperature
is usually close to the average air temperature for a particular time of
year. If I start my simulation in January, should I set the "initial
surface temperature" parameter to the average air temperature (with
a minor adjustment for ground vs. air) in January for my location?</font><br><br><font size=2 face="sans-serif">Best regards,</font><br><font size=2 face="sans-serif">Knut Erik</font>------------------------------------------------------------------------------------------------------------<BR>
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