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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Environmental and Health Impacts of Domestic Hot Water (DHW) Boilers in Urban Areas: A Case Study from Turin NW Italy
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Environmental and Health Impacts of Domestic Hot Water (DHW) Boilers in Urban Areas: A Case Study from Turin NW Italy

机译：城市生活热水锅炉对环境和健康的影响：以意大利西北都灵为例

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Domestic hot water heat pumps (DHW HPs) have spread fast in recent years in Europe and they now represent an interesting opportunity for implementing renewable energy sources in buildings with a centralized/district heating system, where DWH is generally produced by a gas boiler or an electric water heater. Replacing these appliances has several environmental benefits, including the removal of air pollution sources and the reduction of Green House Gasses (GHG) emissions. In this work, we present the techno-economic and environmental evaluation of implementing DHW HPs in Turin, where 66% of the DHW demand is covered by dedicated gas boilers. The impact of such boilers was assessed through numerical air dispersion modeling conducted with the software SPRAY (Aria Technologies, Paris, French). Results show that removing these sources would reduce yearly average concentrations of NOx up to 1.4 µg/m , i.e., about 1% of monitored concentrations of NOx, with a benefit of 1.05 ÷ 15.15 M€/y of avoided health externalities. Replacing boilers with DHW HPs is always financially feasible with current incentives while, in their absence, it would be convenient for residential units with 3 cohabitants or more (51.22% of the total population), thanks to scale economies.
机译：家用热水热泵（DHW HP）近年来在欧洲迅速普及，它们现在代表了在具有集中式/分区供暖系统的建筑物中实施可再生能源的有趣机会，在该建筑物中，DWH通常由燃气锅炉或燃气锅炉产生。电热水器。更换这些电器具有若干环境效益，包括消除空气污染源和减少温室气体（GHG）排放。在这项工作中，我们介绍了在都灵实施DHW HP的技术经济和环境评估，其中专用燃气锅炉可满足DHW需求的66％。通过使用软件SPRAY（Aria Technologies，巴黎，法国）进行的数值空气扩散模型评估了此类锅炉的影响。结果表明，去除这些来源将使NOx的年平均浓度降低至1.4 µg / m2，即所监测的NOx浓度的约1％，可避免健康外部性，其收益为1.05÷15.15 M€/ y。在目前的激励措施下，用DHW HPs替换锅炉在财务上总是可行的，而由于缺乏规模经济，如果没有同伴，则对于拥有3个或更多同居者（占总人口的51.22％）的住宅单位将很方便。

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