Scope of the Project
InDeWaG is acronym of the project "Industrial Development of Water Flow Glazing Systems" - Innovation action project funded under Horizon 2020, a Public Private Partnership on "BUILDINGS DESIGN FOR NEW HIGHLY ENERGY PERFORMING BUILDINGS". Nearly Zero Energy Building (nZEB) performance levels will become a "must" for new buildings in Europe by the end of 2020 in compliance with the Energy Performance of Buildings Directive (EPBD). InDeWaG's objectives concentrate on the development of an exemplary building design, which has a huge potential to minimize energy requirements and meet nZEB performance levels in a multitude of building types and for different climatic zones and local building sites.
InDeWaG establishes new technical knowledge and explores the concept of improved technology.The glazing units developed within the InDeWaG project use circulating water in the chamber between the glass planes to capture solar radiation and transport the generated heat through a pipe system to be used for different purposes such as heating, preheating, domestic hot water and others. Via a circulation of heated or cooled water within the glass chamber in the window the whole facade may act as either a heating or cooling device. Demonstration activity shows technical feasibility in a near to operational environment. Implementing passive and active strategies minimize the use of active HVAC systems, taking advantage of the available natural resources such as solar radiation, thermal variability and daylight.
In the recent year there is a trend in the architecture for designing transparent building envelopes. In most of the modern heavily glazed office buildings in Western Europe the cooling demand is higher than heating demand. Therefore it is necessary to reduce cooling demands by implementing new strategies unique to the fully glazed buildings. Modern facades are using double-glazing with low-e coating to reduce energy emittance in summer and in winter. Comfort has an increasing value for current offices. Independently from climate the room conditions have to be constant overall seasons. Desktop workspaces need glare protection but high illumination with min. 500 lux. The illumination and pc's produced heat loads add up to the solar gains. Instead of blocking the solar radiation InDeWaG project aims at using water to absorb its heat while allowing the light to pass through the glazing. Additionally InDeWaG joins the range of solutions for room conditioning by using water instead of air. Water has a 3.5 thousand times higher heath capacity than air and can easily be transported through smaller pipes instead of big ventilation shafts. For interior use as partition walls InDeWaG can offer transparent solution for space separation and for heating and cooling.
Being an active European project under Horizon 2020, InDeWaG can also be found at the CORDIS platform of the European Commission:
Facade design & building simulation
Fluid simulation for building envelope and interior
Energy management at building and district level
Materials and components for FFG
Construction & production
LCA, cost & market analysis
Dissemination and exploitation, business plan
Coordination & management