Dear all I am trying to compare the results provided by the active layer model integrated in Type 56 with manufacturer data. Test case is simple. · Adiabatic walls without windows · No internal gains · No air flow rate (nor ventilation nor infiltration) · Infinite cooling power to maintain the ambient temperature at the value used in manufacturer calculations (14°C) · Heating floor precisely parameterized according to manufacturer specifications (loops number, water flow rate, conductivity of insulation, etc.) · QALFL gives me the total emitted power and QCOOL the power emitted to the zone Below is the result of the comparison at stationary conditions (plus a sensitivity perform in TRNSYS on pipe wall conductivity and loops number).
Does the gap between TRNSYS and manufacturer data fall within the model uncertainty or does it seem too high to you ? (~20% on power emitted to the zone) Perhaps I missed something in my test case… Or would you have any other advice to reduce the discrepancy ? (giving the fact that input data uncertainties are very small in my case since I have the detailed manufacturer specifications) Thanks a lot. Regards -- Antoine Gautier antoine.gautier@solamen.fr | ||||||||||||||||||||||||||||||||||||||||