Water-filled windows can save 35% on building cooling and heating

Water-filled windows can save 35% on building cooling and heating

Scientists have found that water-filled windows connected to a recirculation system can significantly reduce the energy consumption of a building in any climate.

Heating and cooling houses is an expensive pleasure, since in winter and summer they consume a lot of energy, the production of which also pollutes the atmosphere (up to 40% of the total emissions). However, Dr. Matthias Gutai of Loughborough University decided to use the concept of Japanese baths, the windows of which are filled with water to maintain heat inside.

Together with a colleague from the Kaiserslautern University of Technology, he developed a revolutionary recycling system. It consists of liquid-filled windows, which are connected via pipes in the walls to the larger mechanical system of the building, the heat pump and the tank.

In a warm period of time, water absorbs internal and external heat, transferring it to the storage tank. By lowering the temperature, the stored energy can be used for heating using the same pipes in the walls, or as a source of hot water.

Savings are achieved due to the fact that pumping liquid requires significantly less energy than existing heating, ventilation or air conditioning systems. At the same time, window panels remain transparent and do not require additional coloring or darkening.

Studies have shown that such a system can be effectively used in all major climatic zones, except Antarctica and Antarctica. It will save 47% -72% energy compared to double-glazed windows, and 34% -61% compared to triple. An additional bonus of the water layer is the improvement of sound insulation.

Mathias Gutai tested his idea on two prototype buildings with filled windows in Hungary and Taiwan.

Recall that last year, researchers also found a way to improve the heat transfer of heating systems by 500%.

, Loughborough University

Water-filled windows can save 35% on building cooling and heating

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