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Novel Low-E filter for architectural glass pane

2019; Elsevier BV; Volume: 206; Linguagem: Inglês

10.1016/j.enbuild.2019.109558

1872-6178

N. Abundiz-Cisneros, R. Sanginés, Raymundo Rodríguez-López, M. Peralta-Arriola, Juan Luis Carrillo‐de la Cruz, R. Machorro,

Building Energy and Comfort Optimization

A good Low-Emissivity (Low-E) filter coated on glass reduces the amount of heat coming from solar light into the building, thus the expenses in electricity for air conditioning are reduced. Standard Low-E filters contain a Silver layer between two dielectric thin films due to its high reflectance of infrared wavelengths; however, one of the major silver drawbacks are its chemical and mechanical weakness which reduces the filter mean lifetime. In this paper, we investigate alternative materials to be a substitution of Ag, and they were compared with commercial filters. It was found that an aluminum-based filter has a good cost-benefit performance with peak transmittance better than 80% in the visible, while having less than 20% transmittance for wavelengths longer than 1500 nm. A simulation of the filters construction was made providing a tolerance of each layer thickness, so the filter keeps its optical performance