Fig . 7 : Comparison in a typical day of summer , spring / autumn and winter between hourly energy demand ( red ) and supply ( blue ) with different integrated solar systems in a roof ’ s house .
Multi-family residential buildings have more limited roof capacity , so individual thermal energy equipment was preferred that could be integrated into the hot water supply system and offer more rapid investment returns with minimal visual impact ( Fig . 8 – right ). However , these roof-installed systems often suffer from inadequate maintenance care and are not really perceived by users . The possibility of integrating solar capture systems into building facades is variable by solar orientation , shape and material conditions , but there is capability for incorporating lightweight photovoltaic panels . According initial surveys , this technology could be particularly relevant in low-income sectors located on the peripheries of cities , where residents would most appreciate the reduction in electricity costs and come to value alteration of building expressions by technological innovation and environmental awareness . However , residents would require collective financial and technical support to implement such installations .
Fig . 8 . Test-bed of domestic solar technologies ( left ) and example of multi-family building with thermal panels ( right ).
In order to evaluate installation and performance of different domestic technologies for solar energy collection and production , a test-bed has been implemented in a roof of university building connected to storage tanks and batteries with a central monitoring station ( Fig . 8 - left ). Initial results demonstrate efficiency close to literature and technical standards , even in cloudy days .
Besides , to provide examples of the possibilities offered by integrated solar energy capture with good environmental performance in mass housing , one model was selected from the recent real-estate developments that had both a functional layout and suitable passive strategies ; although a partial change was necessary in the roof design . A dynamic simulation was carried out to determine comfort within the home using typical construction materials and weather conditions of the zone . Integrated thermal and photovoltaic roof collection panels were modelled
600 ZEMCH 2015 | International Conference | Bari - Lecce , Italy