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Jee eco efficient window project resume

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Jee is an eco-sustainable and energy-efficient window and façade system to be applied in dwellings or office buildings. It´s an object to be manufactured in series and designed to have a large range of applications both in refurbish as in new constructions. Mixing passive low-tech solutions with others more sophisticated and high-tech, Jee takes advantage from solar radiation to improve significantly: the heat exchanges, daylighting and ventilation that occur between indoor and outdoor environments. Increasing energy efficiency over 40% reduces tons of CO2 emissions from spaces operation during a 20years life cycle. The lab tests performed on a prototype during a seasons cycle confirmed it. JEE is patented (Invention Patent Nº.10379), design registered (EU Utility Model) and ready to produce.

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Jee eco efficient window project resume

  1. 1. Jee eco-efficient window Jee is an eco-sustainable and energy-efficient window and façade system to be applied in dwellings or office buildings. It´s an object to be manufactured in series and designed to have a large range of applications both in refurbish as in new constructions. Mixing passive low-tech solutions with others more sophisticated and high-tech, Jee takes advantage from solar radiation to improve significantly: the heat exchanges, daylighting and ventilation that occur between indoor and outdoor environments. Increasing energy efficiency over 40% reduces tons of CO2 emissions from spaces operation during a 20years life cycle. The lab tests performed on a prototype during a seasons cycle confirmed it. JEE is patented (Invention Patent Nº.10379), design registered (EU Utility Model) and ready to be produced.heating seasons cooling seasons
  2. 2. FunctioningThe Eco-Efficient Window consists in two systems that work together to optimizeits operation, aesthetics and economic benefits: 1) A glazed window disposed vertically to improve the daylight projection intothe space. Reflecting automated blinds are placed on the outer face of the glassframe. Its innovative design allows natural light to enter with all kind ofintensities: it can penetrate in-depth if necessary (in winter and mid-seasons), orto shade gradually until absolute blackout (in summer or at night). Depending onthe application (in housing or in office buildings) the glassed component can openor not. Nevertheless, If natural ventilation is necessary to improve the inside air c bquality, it can be done by using the greenhouse operable grilles. 2) The thermodynamic system. A semi-cylindrical transparent greenhouse isdisposed along the vertical side of the glassed span. It is composed by two afunctional components: the semi-cylindrical sun-space, and the heat storageventilated modular wall. On demand, Jee can be customized with electricalresistances disposed inside the thermal wall. Like that, we can take advantage ofthe low price of off-peak electrical energy, storing energy during the night periodto be released it to the space, during the day. In a way Jee is also a battery.​​ a - semi cylindrical “sun space” (acrylic)If applied facing the sun, Jee works 24h/day throughout the year using the Sun todrastically increase the performance of thermodynamics, daylight and ventilation b - insulating door + reflector (cork + polished aluminium)in buildings. That is why Jee is the first façade or window system with a payback c - ventilation grilletime. Due to its 40% of increased efficiency, the lab tests showed that paybackcan occur in 7 to 9 years, although variable with the climate conditions and sun d - thermal storage modules (PCM + concrete)radiation intensity of the site where the Jee will be applied. e - window or door (aluminium)
  3. 3. application project to in an office building refurbishing (the headquarters of a construction company , @Leiria Portugal )prototyping ( in CTC – conventional test cell ) instrumentation

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