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- W2982071099 endingPage "106493" @default.
- W2982071099 startingPage "106493" @default.
- W2982071099 abstract "Urban surface structures affect block surface temperatures, thermal loading of pedestrians, wind patterns and more. Comparisons of the building density and height impact on block surface temperature and optimization at a fixed floor area ratio (FAR) are rare. In this research, a 3-dimensional simulation model, ENVI-met, is used to simulate block surface temperature in different scenarios and evaluate the urban geometry impact on surface temperature of each component (roof, street and four-oriented walls). Results show that: (1) the increased building density (λp) and height (H) cool blocks at unfixed FARs; (2) buildings with λp and H of 0.36 and 10 m with a fixed FAR of 1.5 produce the highest summer surface temperatures for all studied components; (3) when FAR is fixed, among scenarios with λp ≤ 0.36 and H ≥ 10 m, building height dominates component surface temperature by reducing the solar radiation reaching the surface. Among scenarios with λp > 0.36 and H < 10 m, building density becomes more important in reducing heat loss; (4) the lower parts of western and eastern walls on summer and winter days and of southern walls on winter days are cooler because more shadows cast onto walls, whereas the lower parts of northern walls over the two days and of southern walls on summer days are warmer because walls absorb more ground radiation with high-rise and low-density buildings. This study can provide instructions for urban design in mitigating the urban heat impact on human health and decreasing building energy requirements." @default.
- W2982071099 created "2019-11-01" @default.
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- W2982071099 date "2020-01-01" @default.
- W2982071099 modified "2023-10-15" @default.
- W2982071099 title "Evaluating the impact of the building density and height on the block surface temperature" @default.
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- W2982071099 doi "https://doi.org/10.1016/j.buildenv.2019.106493" @default.
- W2982071099 hasPublicationYear "2020" @default.
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