tThe aim of the present paper is to evaluate the energy performance in unsteady-state conditions ofan Evolutive House. The original design was presented by two important architects, Renzo Piano andPeter Rice, in 1978. The house has two large glass walls in the east and west fac¸ ades. Experimentalinvestigation and numerical analysis were carried out in a prototype of the house realized in Perugia. Theair temperature, the surface temperature of floors, the global solar radiation, the relative humidity weremeasured. Simulations were performed using both Energy Plus and TRNSYS software. Simulation modelswere tested and validated with experimental data considering a new weather database compiled forPerugia. The analysis compares different scenarios in terms of energy demand, such as the substitutionof the glazing and the use of innovative packaged solutions. Innovative glazing systems filled with silicaaerogel were investigated as a solution for energy saving in buildings. Results show that an importantenergy saving was obtained for all the proposed glazings (about 60–70%). The simulation codes’ resultsare in good agreement, but some differences are due to the different approach in the evaluation of thesolar irradiance on tilted surfaces and to the transient heat conduction model.
Evolutive Housing System: refurbishment with new technologies and unsteady simulations of energy performance
BURATTI, Cinzia;BELLONI, ELISA;PALLADINO, DOMENICO
2014
Abstract
tThe aim of the present paper is to evaluate the energy performance in unsteady-state conditions ofan Evolutive House. The original design was presented by two important architects, Renzo Piano andPeter Rice, in 1978. The house has two large glass walls in the east and west fac¸ ades. Experimentalinvestigation and numerical analysis were carried out in a prototype of the house realized in Perugia. Theair temperature, the surface temperature of floors, the global solar radiation, the relative humidity weremeasured. Simulations were performed using both Energy Plus and TRNSYS software. Simulation modelswere tested and validated with experimental data considering a new weather database compiled forPerugia. The analysis compares different scenarios in terms of energy demand, such as the substitutionof the glazing and the use of innovative packaged solutions. Innovative glazing systems filled with silicaaerogel were investigated as a solution for energy saving in buildings. Results show that an importantenergy saving was obtained for all the proposed glazings (about 60–70%). The simulation codes’ resultsare in good agreement, but some differences are due to the different approach in the evaluation of thesolar irradiance on tilted surfaces and to the transient heat conduction model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
