[EnergyPlus_Support] Question About EarthTube

["y" <fly_bird@xxxxxxxxxxxxxxx>]

Dear all:
    I have some problems when I used Earth Tube model. The model was
simulated when the temperature was set between 0-15 degree, but the
result below seems strange.
    On the date 01/06 01:00 and 07:00, the temperature is below 15
degree but the Earth Tube Volume is zero.Is this value right? or does
it have special meaning?Thank you

  Date/Time	 ZONE Temp 	EarthTube-Volume
 01/05  23:00,	 15.10, 	1017.42, 
 01/05  24:00,	 15.07,	        952.79, 
 01/06  01:00,	 14.97, 	0.00, 
 01/06  02:00,	 15.00, 	1001.73, 
 01/06  03:00,	 14.82, 	952.99, 
 01/06  04:00,	 14.90, 	1013.58, 
 01/06  05:00,	 14.81, 	986.97, 
 01/06  06:00,	 14.78, 	1046.76, 
 01/06  07:00,	 13.97, 	0.00 ,
 01/06  08:00,	 14.94, 	926.25, 


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