MAINTAINABILITY OF BIPV SYSTEMS. DESIGN STRATEGIES FOR COMPLIANT TECHNOLOGICAL SOLUTIONS

摘要

The theme of building integration of photovoltaic systems, seems to have been addressed by the architectural culture of recent years with greater attention to the energy production than systems construction. In terms of design and manufacturing, this has been translated into a constant research about the optimization of PV and building systems in relation to the form, orientation, technology for solar collection and, in particular for BIPV systems, with respect to the architectural language adopted. On the other hand, however, is less investigated the compliance criteria with maintainability of systems, intended as a deisgn prerequisite to project management and maintenance of efficiency, following completion of the works. The possibility that, for example, the operations of inspection, removal, repair or replacement of modules or other photovoltaic components can take place without that, in operation, there are problems, damage or interference with the performance of the building envelope, and vice versa, must necessarily pass through a careful analysis of the degradation mechanisms and materials knowledge, levels of interaction between systems and a careful study of compliant solutions and construction details. This work, starting from the analysis of and maintainability requirements and sub - requirements for BIPV systems and specificities detectable in terms of maintenance demand from the destination of use, technology units and technical elements classes of the building envelopes, suggests a methodological approach for the design of compliant technological solutions. The objective is to make controllable and verifiable, through the introduction of maintenace - oriented criteria, all variables potentially or directly generating maintenance demand, also according to the technical and economic implications, for maintaining the prerogatives of efficiency and reliability of photovoltaic and building systems according to architectural integration . The paper also shows some case studies of exemplary BIPV works maintenance - oriented.