Energy Measurements for a low Energy Building in Trieste

ENERGY MEASUREMENTS FOR A LOW ENERGY BUILDING IN TRIESTE In view of the importance of energy savings in buildings constructions a two floor low energy building has been monitored for over one year and an half, with the aim of recording the energy consumption both in winter and summer seasons. An additional outcome of the project is to collect information about the performance and behavior of the system plant featuring a geothermal heat pump, photovoltaic system, domestic home solar water and heating integration. The building with a south west exposition is conditioned by a radiant floor system for both heating and cooling and is provided with forced air system ventilation with recuperator, to avoid condensing problems during cooling periods an automatic dehumidification system is provided as well, heating and cooling are provided by a geothermal heat pump system. During the research, thanks to the deployment of a National Compact RIO data acquisition system, a great mount of data have been collected. The data comprises the temperatures and flow rates of all the hydronic circuits, ground temperatures in the boreholes, air temperatures in correspondence of the recuperator, electric consumption of the heat pump and of the whole plant system. The collected data will be in future used to compare the results of a dynamic simulation of the building. In this paper the acquisition system and the energetic behaviour of the building in summer and winter seasons will be presented.