Jee : janela eco-eficiente (eco efficient window) : development of a high performance standard window

Abstract

Eco Efficient Window (JEE) it's a design and R&D project, consisting in the of a production high performance window to be applied, both in refurbishing and new construction. JEE aims to reduce the energy demands and the C02 emissions, during the Life Cyclc, tacking advantage of sun radiation and recyclable materials on its construction. Patented as a standard indivisible object, the Eco-Efficient Window functions 24h a day, in buildings south facing and good envelope conditions. JEE is composed by two systems that respond to different phenomena: I) Span (glazed window or door) - daylight, ventilation and acoustics; 2) Thermodynamic (vertical part of the span): sunspace ventilated Trombe Wall, facultative electrical heating backup system to increase autonomy to the object, and reactivity to the natural processes, avoiding the use of another acclimatization system, saving money and resources. To respond to the conceptual and technological objectives, the methodologies had to be solid and clear, finding in the final drawing, the correct compromise between: visual aspects, technological performance, eco-efficiency, and cost/benefit values in a large scale production.