| dc.description.abstract | The urbanization process increases artificial surfaces and less natural vegetation,decreases the albedo, increases metabolic heat and energy consumption, resulting in heat
island effect. Pavements are found to be a significant contributor to the Urban Heat Island.
Cool pavements and vegetation are suggested as a strategy to mitigate heat island effect bycooling the environment and saving energy. The purpose of this study is to discover the effect of different types of permeable pavement and different pavement area covering the building on air and wall temperature, building‘s cooling energy consumption, and the costs comparison of permeable pavements with conventional paving materials.
Four types of pavement (dense grade asphalt pavement/DGAC, permeable asphalt pavement/PAC, concrete, grass block/ GB, and permeable interlocking concrete block/PICB)from Xindian are used in simulation. Xindian site measurement is conducted to collect meteorological and pavement surface temperature data. Statistical analysis is used to find the
correlation between variables and to develop the pavement surface temperature model applied on National Central University (NCU) main library as the case study for the simulations using Computational Fluid Dynamics (CFD) simulation package in DesignBuilder. The result is
further used in the building energy consumption simulations using EnergyPlus in DesignBuilder, and then used to calculate the cost.
The result shows DGAC gives the highest temperature and impact on the outdoor and indoor temperature, and also increases cooling energy consumption. Analysis results showed differences caused by using permeable pavements or by increasing vegetation area. Utilizing permeable pavement can decrease energy consumption 0.170% (PAC) until 0.735% (GB) per year. And vegetation also can decrease 0.944%-1.132% per year. Even permeable installation cost is higher than DGAC (PAC 53.2%, GB 86.4%, PI 46.4%), energy efficiency cost make it cheaper. The total cost differences with DGAC is just 2.319% for PAC, 3.490% for GB, and 1.700% for PI. | en_US |