EAGER: Preliminary Analyses of Heat Storage in Pervious Concrete Systems

与更传统的混凝土路面系统相比，这项急切获奖的目的是为使用透水混凝土系统缓解热岛的潜力提供估计。众所周知，透水混凝土中增加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。这项探索性工作将涉及与研究人员合作，这些研究人员收集了爱荷华州透水性和传统混凝土路面系统的比较热数据，并从EPA正在分析雨水效益的比较地点获得热数据。这项研究将在宏观尺度上分析温度数据，以确定在不同天气和白天条件下，比较透水和传统混凝土路面系统各层内的总热流。每个系统中的各层将分别分析特定时间段内的热量增减，以便在试验场的条件下编制总体供暖和制冷预算。这项研究将开始开发一个关于非常透水性的路面材料可能对城市能量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、可持续标准制定组织和决策者更好地应用它们的使用，以最大限度地提高潜在的径流污染预防效益，同时将城市热岛和气候影响降至最低。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.