Energy-efficient facades from no-fines lightweight concrete Coupling with facade solar air collectors compared to monolithic structures and structures insulated using a composite thermal insulation system

摘要

In addition to determining the exterior look of a building, facades have important protective functions which include the protection against wind and rain, noise and thermal insulation, as well as moisture and fire protection. The user's focus is on a pleasant atmosphere inside the building. Energy transition assigns a prominent role to the energy efficiency of building facades. As a consequence, wall structures are required which not only provide thermal insulation in summer and winter but also play an active role in generating and using environmental energies. The authors have therefore focused their research on unlocking the energy efficiency of facades. Joint considerations aim at developing and testing sustainable systems approaches which, in addition to providing the required thermal insulation, are capable of actively and passively using the solar energy available in accordance with weather conditions. The research work is focusing on solid heat-insulating wall structures from no-fines lightweight concrete which, as an alternative to the known monolithic construction method or the use of a composite thermal insulation system, are complemented on the outside by a facade solar air collector.