Hello All.
i´ve got the following error when i´m doing a building parametric study... any of the combinations of capacities, thicknesses, or conductivities i´m changing.. doesn´t like the program very much.
Any advice????
---------- WALL TYPE C21 ----------
THERMAL CONDUCTANCE, U= 2.13365 kJ/h m2K; U-Wert= 0.53843 W/m2K
(incl. alpha_i=7.7 W/m^2 K and alpha_o=25 W/m^2 K)
TRANSFERFUNCTION COEFFICIENTS
K A B C D
0 1.1040243E+01 1.5341544E+00 1.3444721E+01 1.0000000E+00
1 -8.9084733E+00 5.9894459E-01 -1.1311898E+01 -1.7569007E-04
2 1.5031158E-03 1.7343835E-04 4.4981489E-04
SUM 2.1332724E+00 2.1332724E+00 2.1332724E+00 9.9982431E-01
UNABLE TO FIND A ROOT AFTER INDICATION THAT A ROOT EXISTED
CHECK THE WALL TYPE AFTER THE LAST CALCULATED WALL
OFTEN THE WALL CAPACITY IS TO SMALL TO CALCULATE A TRANSFER FUNCTION !
CHECK ALSO YOUR TIMEBASE !