[TRNSYS-users] Type 557: Initial surface temperature

[knut.erik.enerstvedt at niva.no]

Dear TRNSYS users,

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?

Best regards,
Knut Erik
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