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Heat recovery shower system from wastewater to preheat the cold water supply
The Blue uses heat from wastewater to preheat the cold water supply, resulting in a significant lower demand for hot water. By doing so, the demand for hot water drops significantly which means a significant lower energy consumption (depending on the version, a 4-person household can save up to 1.876 kWh per year). In turn, this allows for a smaller hot water system. The installation costs of the hot water system and the utility bill will be lower. The energy performance of the building will improve considerably and less CO2 will be emitted. The Blue has been specifically developed for multi-story construction and projects where the highest possible efficiency must be achieved on one floor.
Blue by Hamwells
Implemented by The Green Village, Woon Friesland, Bouwgroep Dijkstra Draaisma, Bewonersraad Friesland in Delft (Netherlands) in 2021
The project involved a collaboration between The Green Village (a field-lab location), Woon Friesland (a social housing association with approximately 21,000 homes), Bouwgroep Dijkstra Draaisma (a construction company), Bewonersraad Friesland (representatives of the residents of the houses of Woon Friesland) and Hamwells. The latter installed a Blue 16 unit connected according to a system B, at The Green Village location in a 2-person household at the faculty of the Technical University of Delft in November 2021. The unit equipped with sensors aimed to provide more insights on its actual performance.
Result
The average measurement of a random 7 week period show that the recovered energy amounts to 1.1 kwh
Hamwells
Creating smart shower systems that allow you to save and savor. This way, choices for a better future come naturally.
View company profile Solution websiteThe information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.