Building energy automation and control strategies have
recently been applied to improve the energy performance
of the building and to exploit the integration of the build
ing envelope, HVAC and RES. To optimise their applica
tion, reliable data on the dynamic energy behaviour of the
building should be available possibly from monitoring,
but also from simulation at the design stage.
This paper compares the results of two building perfor
mance simulation tools: TRNSYS, which implements a
fully detailed model and software implementing a simpli
fied model according to the EN ISO 52016-1 standard. We
are interested in investigating the potential of the EN ISO
52016-1 model to capture the dynamic behaviour of the
building. A NZEB single-family house in Northern Italy,
where the thermal loads are met by a domestic air han
dling unit (AHU) with heat recovery was taken as a case
study. The TRNSYS model is calibrated using data availa
ble from the 15-minute monitoring of the indoor/outdoor
temperatures, the electrical energy consumption and the
source/sink temperatures of the heat pump, and then com
pared with the result of the standard model in terms of
both monthly thermal energy demand and hourly heating
demand. The simplified model overestimates the annual
heating demand compared to the detained model, but is
able to capture the daily maximum both in terms of value
and temporal cadence.
