EAGER: Preliminary Analyses of Heat Storage in Pervious Concrete Systems

这个EAGER奖项的目的是提供与更传统的混凝土路面系统相比，使用透水混凝土系统缓解热岛的潜力的估计。众所周知，透水混凝土中增强的孔隙率和相互连接的孔隙网络有助于控制雨水径流，但其对城市能源问题（如热岛效应）的影响尚不清楚。这项探索性工作将包括与研究人员合作，这些研究人员收集了爱荷华州透水和传统混凝土路面系统的比较热数据，并从一个比较地点获得热数据，以供EPA分析雨水效益。该研究将在宏观尺度上分析热数据，以确定在各种天气和昼夜条件下透水和传统混凝土路面系统层内的总体热通量。在特定的时间框架内，每个系统中的各层将分别分析热量的增加或损失，以便在测试场地的条件下编制总体的加热和冷却预算。这项研究将开始建立一个非常透水性路面材料可能对城市能源储存和转移产生影响的知识库。未来的研究将帮助科学家、设计师、可持续发展标准制定组织和决策者更好地利用它们来最大限度地提高潜在的径流污染防治效益，同时最大限度地减少城市热岛和气候影响。研究结果将通过会议、期刊论文、课程开发和研讨会等传统学术方法传播。

The objective of this EAGER award is to provide estimates of the potential for heat island mitigation with the use of pervious concrete systems as compared to more traditional concrete pavement systems. The enhanced porosity and interconnected pore networks in pervious concrete are known to aid in storm water runoff control, but its effect on urban energy issues such as the heat island effect are unknown. This exploratory effort will involve collaborating with researchers who have collected thermal data on comparative pervious and traditional concrete pavement systems in Iowa and obtaining thermal data from a comparative site being analyzed for stormwater benefits by the EPA. The research will analyze the thermal data on a macroscopic scale to determine overall heat fluxes within the layers of comparative pervious and traditional concrete pavement systems under various weather and diurnal conditions. Layers in each system will be separately analyzed for heat gain or loss over specific timeframes in order to compile overall heating and cooling budgets under the conditions of the test sites. This study will start to develop a knowledge base of the impacts that very pervious pavement materials may have on urban energy storage and transfer. Future research will help scientists, designers, sustainability standard developing organizations, and decision makers better apply their use to maximize potential runoff pollution prevention benefits, while minimizing urban heat island and climate impacts. The results will be disseminated via traditional academic methods of conferences, journal papers, course development, and workshops.