Shower heat exchanger: reuse of energy from heated drinking water forCO2 reduction

Drinking Water Engineering and Science

Z.Deng¹  J. P.van der Hoek¹  S.Mol¹ 

DOI  :  10.5194/dwes-9-1-2016

学科分类：工程和技术（综合）

来源: Copernicus Publications

【 摘 要 】

The heating of drinking water in households contributes significantlyto the emission of greenhouse gases. As a water utility aiming tooperate at a climate neutral level by 2020, Waternet needs to reduce its CO₂ emission by 53 kton yr⁻¹. To contribute to this ambition, a pilot project was carried out in Uilenstede, Amstelveen, the Netherlands, to recover the shower heat energy with a shower heat exchanger from Dutch Solar Systems. An experimental setup was built in the Waternet laboratory to evaluate the claimed efficiencies. The energy recovery efficiency observed in the lab was 61–64 % under winter conditions and 57–62 % under summer conditions, while the energy recovery efficiency observed inUilenstede was 57 % in December 2014. Based on the observations, 4 % ofthe total energy consumption of households in Amsterdam (electricity andgas) can be recovered with a shower heat exchanger installed in allhouseholds in Amsterdam, which also means a 54 kton year⁻¹ CO₂ emission reduction can be achieved.

【 授权许可】

Unknown