A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Energy Efficient Building's Envelopes. Numerical and experimental analysis of innovative solutions
The aim of this study is to set up a simplified and validated numerical platform to describe several technologies concerning the energy performance improvements of glazed and opaque building envelopes. The study included the validation of DIGITHON, a detailed simulation software and the development of a simplified transient numerical model in respect of glazed buildings. DIGITHON, was validated against experimental data, and then a parametric study was carried out through it to evaluate the air pre-heat efficiency of implementing the façade as an energy recovery unit. The simplified model was dedicated to the thermal engineering designers dealing with projects preliminary phases .The simplified model was validated against experimental data. Later an extensive comparison between the detailed software DIGITHON and the simplified model was carried out for different climatic conditions to evaluate the influence of considering indoor zones thermal inertia. Although the simplified model estimates thermal loads higher than DIGITHON, nevertheless this can be considered a beneficial design safety aspect as long as it is implemented in the preliminary design phases. Later an innovative locating of photovoltaic modules at building glazed facades was investigated through the commercial software TRNSYS. The methodology of modelling double skin-glazed façades combined with different strategies of ventilation applying TRNflow software was thoroughly clarified. The results show a reduction in thermal heating loads compared to conventional location of PV on external building surfaces. On the other hand the cooling loads are increased, hence to improve the performance of the system in summer hot season, the technology of phase changing material (PCM) was tackled in the research as a latent thermal storage system. A numerical investigation of the effect of PCM in building sector, solely and combined with PV modules to improve its thermal performance, has been carried out. Two numerical models (equivalent capacitance and enthalpy ...
Energy Efficient Building's Envelopes. Numerical and experimental analysis of innovative solutions
The aim of this study is to set up a simplified and validated numerical platform to describe several technologies concerning the energy performance improvements of glazed and opaque building envelopes. The study included the validation of DIGITHON, a detailed simulation software and the development of a simplified transient numerical model in respect of glazed buildings. DIGITHON, was validated against experimental data, and then a parametric study was carried out through it to evaluate the air pre-heat efficiency of implementing the façade as an energy recovery unit. The simplified model was dedicated to the thermal engineering designers dealing with projects preliminary phases .The simplified model was validated against experimental data. Later an extensive comparison between the detailed software DIGITHON and the simplified model was carried out for different climatic conditions to evaluate the influence of considering indoor zones thermal inertia. Although the simplified model estimates thermal loads higher than DIGITHON, nevertheless this can be considered a beneficial design safety aspect as long as it is implemented in the preliminary design phases. Later an innovative locating of photovoltaic modules at building glazed facades was investigated through the commercial software TRNSYS. The methodology of modelling double skin-glazed façades combined with different strategies of ventilation applying TRNflow software was thoroughly clarified. The results show a reduction in thermal heating loads compared to conventional location of PV on external building surfaces. On the other hand the cooling loads are increased, hence to improve the performance of the system in summer hot season, the technology of phase changing material (PCM) was tackled in the research as a latent thermal storage system. A numerical investigation of the effect of PCM in building sector, solely and combined with PV modules to improve its thermal performance, has been carried out. Two numerical models (equivalent capacitance and enthalpy ...
Energy Efficient Building's Envelopes. Numerical and experimental analysis of innovative solutions
Elarga, Hagar (author) / Elarga, Hagar / Benini, Ernesto / Zecchin, Roberto / Zarrella, Angelo / Paolo, Colombo
2017-01-27
Theses
Electronic Resource
English
DDC:
690
Total system consideration for design of building's envelopes
| Tema Archive | 1977
| British Library Online Contents | 2018
| British Library Online Contents | 2018
Innovative Materials and Construction Systems for Energy-Efficient Building Envelopes
| British Library Conference Proceedings | 1992