The necessity to reduce energy consumption has leaded to an evolution of the sports hall air-supported and pneumatic structures, starting from a single layer envelope and passing to a double membrane, either based on cushions or on a continuous air gap. However a quantitative assessment of the energy performance of the mentioned fabric structures is still lacking. Therefore by using the dynamic energy simulation software ESP-r, this research aims at assessing the winter energy performance of a typical pneumatic sport hall in Italy and at evaluating the actual energy saving potential of the different generation membranes. PVC coated polyester skins are considered. In order to model the sport hall in ESP-r, some simplifications were adopted. On the basis of some experimental measurements on the indoor temperature distribution in a sport hall in Milan, the indoor volume was modelled as a single thermal zone. Moreover the ESP-r model simplifies the curved surface to plain ones but trying to maintain the volume and total envelope area. For the double membrane based on cushion, the thermal bridges at the cushion edges are taken into account. The simulation results show the dynamic behaviour of the membranes, focusing on the low thermal inertia, the role of the solar gains, of the infiltration losses and of the long wave radiation to the sky. Finally the energy demand reduction achieved with double membranes with respect to the single is quantified.
Energy performance of different pneumatic and air-supported membranes for sports halls
SUO, HUA;ANGELOTTI, ADRIANA;ZANELLI, ALESSANDRA;
2013-01-01
Abstract
The necessity to reduce energy consumption has leaded to an evolution of the sports hall air-supported and pneumatic structures, starting from a single layer envelope and passing to a double membrane, either based on cushions or on a continuous air gap. However a quantitative assessment of the energy performance of the mentioned fabric structures is still lacking. Therefore by using the dynamic energy simulation software ESP-r, this research aims at assessing the winter energy performance of a typical pneumatic sport hall in Italy and at evaluating the actual energy saving potential of the different generation membranes. PVC coated polyester skins are considered. In order to model the sport hall in ESP-r, some simplifications were adopted. On the basis of some experimental measurements on the indoor temperature distribution in a sport hall in Milan, the indoor volume was modelled as a single thermal zone. Moreover the ESP-r model simplifies the curved surface to plain ones but trying to maintain the volume and total envelope area. For the double membrane based on cushion, the thermal bridges at the cushion edges are taken into account. The simulation results show the dynamic behaviour of the membranes, focusing on the low thermal inertia, the role of the solar gains, of the infiltration losses and of the long wave radiation to the sky. Finally the energy demand reduction achieved with double membranes with respect to the single is quantified.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
