[TRNSYS-users] problem with a vertical heat exchange type 557a

[berkane ahlem]

hello sirs,
I need to ask about type557a, when I calculate the heat extracted from
the borehole I find it in frist year the heat extracted is
(-6824.33kwh) ,decreasing in the second  (-6792.33kwh) year and then
increasing in the third year (6804.004kwh) and decreasing in  the
forth year (-6793.2kwh) while it should decrease because the Earth's
temperature is decreasing (16.8°C; 14.7°C) .can anyone help me
 thank you
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40.00  40.00   40.00   ! Values of Entering Load Temperatures in Degrees Celsius
-3.90  -0.60  2.8  ! Values of Entering Source Temperatures in Degrees Celsius 
9.21   3.26    !Total Cooling(kW)and Power(kW) at 40.00/-3.90 
9.99   3.28    !Total Cooling(kW)and Power(kW) at 40.00/-0.60 
10.83   3.32  !Total Cooling(kW)and Power(kW) at 40.00/2.80 
9.21   3.26    !Total Cooling(kW)and Power(kW) at 40.00/-3.90 
9.99   3.28    !Total Cooling(kW)and Power(kW) at 40.00/-0.60 
10.83   3.32  !Total Cooling(kW)and Power(kW) at 40.00/2.80 
9.21   3.26    !Total Cooling(kW)and Power(kW) at 40.00/-3.90 
9.99   3.28    !Total Cooling(kW)and Power(kW) at 40.00/-0.60 
10.83   3.32  !Total Cooling(kW)and Power(kW) at 40.00/2.80 
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