NEW GENERATION NZEB - DEMONSTRATIONAL PAVILION WITH WATER FLOW GLAZING AND ROOF MOUNTED PV SYSTEM
The demonstrational Pavilion, which will be built at the Scientific Campus II of the Bulgaria Academy of Sciences in Sofia, Bulgaria, is designed to achieve the Bulgarian nearly Zero Energy Building (nZEB) standard. It consists of:
- Glass envelope - Water Flow Glazing (WFG) modules on three facades
- Roof-mounted 4.8 kWp photovoltaic system
To simulate processes in the Pavilion, the IDA ICE software was used, which has the functionality to model sophisticated simulation applications to study the indoor climate as well as the energy consumption of the entire building. In order to enable the simulation of dynamical physical changes within the WFG facade, the software was enhanced by integrating a specific tool developed as part of InDeWaG project. The simulations were made with different combinations of glass type and position of the argon and water chambers corresponding to the three types of WFG modular units so called iThermGlass, HeatGlass and CoolGlass. The highest annual monthly average Water Heat Gain and lowest annual monthly average Internal Heat Flux are obtained for HeatGlass, which makes this module type the best choice for the local climate conditions. To estimate the effect of using WFG modules another simulation was prepared in which WFG modules are replaced by standard triple glazing windows. Read more!
INVESTIGATION OF THERMAL BEHAVIOUR OF INNOVATIVE WATER FLOW GLAZING MODULAR UNIT
Energy consumption in buildings is approximately one third of the total energy consumption. In modern architecture, the area of the glazing is getting bigger and bigger, and this leads to an increasing influence of the windows on energy efficiency of the buildings. A huge amount of electricity is consumed to provide a comfort room temperature through air conditioning. Instead of this advance glazing technologies and materials can be used to reduce buildings energy demands and improve indoor environment.Read more!
InDeWaG demonstrational pavilion in Bulgaria
InDeWaG project aims at bringing the water flow glazing (WFG) technology into industrial ripeness. One of the main milestones towards that goal is the construction of a pavilion with façades consisting of WFG elements. For that purpose InDeWaG partners have designed a pavilion that will serve as demonstrator for this new technology. It is shaped like a glass box with a square plan measuring 7.24 meters by 7.24 meters. The glass envelope is composed of WFG modules on the East, West and South façade, while the North façade will be opaque. The roof, floor and north facade are well insulated and will contribute to the low energy requirements of the pavilion, which is designed to achieve nearly zero energy building standard according to the Bulgarian legislation. The transparent facade elements are with a due East, West or South orientation at 3.00 m height from the floor to the ceiling. Read more!
InDeWaG demonstrator in Spain
The approach of InDeWaG project is to enable maximum use of daylight by a transparent glass facade and at the same time meet nearly zero energy performance. The main objective of the Spanish demonstrator is to validate the strategy of "energy rejection" through a CoolGlass envelope in order to achieve nZEB. CoolGlass is a triple glazing using highly reflective coating (Xtreme 60.28) deposited on the inner surface of the outermost glass pane aiming at minimizing the energy absorption. The concept of CoolGlass is to eliminate internal heat loads by circulating cool water through the water chamber facing indoors. This cool isothermal envelope allows insulating the building from outer climate conditions. Read more!
In an interview, published by El Media, architect Dimitar Paskalev (Architectonika) gave an insight about the innovative technology of fluid flow glazing and its application in façade building. He states that the enormous effect of this technology is reducing the energy consumption in a high-rise and office buildings, where maximum daylight utilization is ensured through the glass façade. He explained that Architectonika, along with organizations from Bulgaria, Germany and Spain participate in a Public-Private Partnership under the Horizon 2020 Programme. The EU funded project is InDeWaG, and a Demonstration pavilion with the innovative water flow glazing façade will be set-up in Bulgaria.
The article is available only in Bulgarian HERE.