Abstract
Passive solar elements for both direct and indirect gains, are systems used to maintain a comfortable living environment while saving energy, especially in the building energy retrofit and adaptation process. Sunspaces, thermal mass and glazing area and orientation have been often used in the past to guarantee adequate indoor conditions when mechanical devices were not available. After a period of neglect, nowadays they are again considered as appropriate systems to help face environmental issues in the building sector, and both international and national legislation takes into consideration the possibility of including them in the building planning tools, also providing economic incentives. Their proper design needs dynamic simulation, often difficult to perform and time consuming. Moreover, results generally suffer from several uncertainties, so quasi steady-state procedures are often used in everyday practice with good results, but some corrections are still needed. In this paper, a comparative analysis of different solutions for the construction of verandas in an existing building is presented, following the procedure provided by the slightly modified and improved Standard EN ISO 13790:2008. Advantages and disadvantages of different configurations considering thermal insulation, windows typology and mechanical ventilation systems are discussed and a general intervention strategy is proposed. The aim is to highlight the possibility of using sunspaces in order to increase the efficiency of the existing building stock, considering ease of construction and economic viability.
Highlights
Research on passive solar systems is not a new issue
A comparative analysis of different solutions for the construction of verandas in an existing building is presented, following the procedure provided by EN ISO 13790
Methods process3.asMethods passive solar elements, the improved EN ISO 13790 calculation methodology has been order to assess thethe possibility and the viability of using verandas in the building applied to aInreal case study: refurbishment of a building for social housing inrenovation
Summary
Research on passive solar systems is not a new issue. Great efforts were made towards more energy efficient buildings in the seventies following the 1973 oil crisis, and several books on the proper design of passive devices were published. Among the different passive systems, designers have often preferred sunspaces because they act as heat storage systems, and because they define a space with high quality of living, often required by clients as winter gardens In this field, one of the early works was from Wall [4], which investigates in depth several aspects linked to glazed spaces: examples from past architecture, proposals of simplified design tools, and evaluation and comparison of different design possibilities. The former refers about the first building in Serbia that received the permission to apply a sunspace as an efficient strategy for energy saving The latter concerns a deep investigation of the effect of thermal mass as heating storage in sunspaces, so to give users and designers (enthusiastic of sunspaces but usually wary of unproven systems) guidelines for contemporary passive solar design. It is with this in mind that the authors propose the work described
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
