The Impact of Greenspace on Thermal Comfort in a Residential Quarter of Beijing, China
Abstract
:1. Introduction
1.1. Micro-Scale Studies on the Urban Thermal Environment
1.2. Context of Urban and Residential Development of Beijing
1.3. Research Objectives
2. The Study Area and Methodology
2.1. Selection of High-Rise Residential Quarter for Case Study
2.2. Microclimate Simulation Model
2.3. Simulation Preparation
2.4. Development of Greening Modification Scenarios
2.5. Model Validation
2.6. Calculation of Universal Thermal Climate Index (UTCI)
3. Results and Analysis
3.1. Effect of Vegetation on Air Temperature
3.2. Effect of Vegetation on Thermal Sensation
4. Discussion
4.1. Issues about the Microclimate Modelling
4.2. Implications of Vegetation on Mitigating Microclimate
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Items | User Input during Simulations |
---|---|
Simulation day | 11 August 2014 |
Simulation time | 24 h |
Initial temperature | 24.5 °C |
Relative humidity 2 m aboveground | 45% |
Wind speed | 1.5 m/s |
Wind direction | 220° |
Indoor temperature | 19 °C |
Heat transmission of walls/roofs | 1.7/2.0 W/m2 respectively |
Albedo of walls/roofs | 0.3/0.4 respectively |
UTCI (°C) Range | Stress Category | Protective Measures |
---|---|---|
+9 to +26 | No thermal stress | Physiological thermoregulation is sufficient to maintain thermal comfort |
+26 to +32 | Moderate heat stress | Drinking > 0.35 L/h of fluids is necessary |
+32 to +38 | Strong heat stress | Drinking > 0.35 L/h of fluids is necessary. Staying in shaded places is recommended. Periodically, a reduction in physical activity is recommended |
+38 to +46 | Very strong heat stress | Temporary use of air-conditioned rooms or staying or staying in shaded places is periodically necessary. Drinking > 0.5 L/h is necessary. Reduce physical activity |
>46 | Extreme heat stress | Temporary body cooling is periodically necessary. Drinking > 0.5 L/h is necessary. Avoid physical activity |
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Wu, Z.; Kong, F.; Wang, Y.; Sun, R.; Chen, L. The Impact of Greenspace on Thermal Comfort in a Residential Quarter of Beijing, China. Int. J. Environ. Res. Public Health 2016, 13, 1217. https://doi.org/10.3390/ijerph13121217
Wu Z, Kong F, Wang Y, Sun R, Chen L. The Impact of Greenspace on Thermal Comfort in a Residential Quarter of Beijing, China. International Journal of Environmental Research and Public Health. 2016; 13(12):1217. https://doi.org/10.3390/ijerph13121217
Chicago/Turabian StyleWu, Zhifeng, Fanhua Kong, Yening Wang, Ranhao Sun, and Liding Chen. 2016. "The Impact of Greenspace on Thermal Comfort in a Residential Quarter of Beijing, China" International Journal of Environmental Research and Public Health 13, no. 12: 1217. https://doi.org/10.3390/ijerph13121217