Building Integrated Solar Thermal Design: Assessment of Performances of a Low Cost Solar Wall in a Typical Italian Building. (June 2016)

• Record Type: Journal Article
• Authors: Beccali, Marco; Leone, Giuliana; Caputo, Paola; Ferrari, Simone
• Is Part Of: Energy procedia. Volume 91(2016)
• Page Start: 916
• Page End: 925
• Publication Date: 2016-06
• Subjects: Solar energy -- air solar collector -- BIST -- building energy retrofit -- façade refurbishment; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2016.06.258
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Present work deals with the topic of building integration of solar thermal collector (BIST) as a refurbishment measure. Such equipment, more than its main function as heating generator, plays a specific role as a building component (envelope finishes, thermal insulation layer, roof cover etc). Consequently, from a heat transfer point of view, an integrated component affects twice the global building balance: supporting the thermal plant (i.e. providing heat for final uses) and modifying the wall heat-transfer pattern (i.e. reducing thermal losses). In turn, the collector performance itself is influenced by the wall structure (back losses reduction). Present work proposes a method for evaluating the yearly performance of a low cost BIST by means of a Trnsys model on a reference building. This model arises from previous studies based on experimental validation of a FEM model that was implemented in order to describe the collector-wall system efficiency.