Study on the comprehensive influence of Piloti Ratio on mean radiant temperature in residential communities in subtropical climate cities in China

Xi, Tianyu; Jin, Hong; Ding, Jie

doi:10.1142/9789814759984_0059

Cited by 5 publications

(5 citation statements)

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“…Xi et al published field measurement results of various human built elements in Guangzhou [7][8][9][10], including piloti, but no systematic analysis by simulation was used in those research. The influence of piloti on mean radiant temperature simulated by 3-D unsteady state heat balance radiation calculation method was published by Xi, Hong Jin et al but no thermal comfort was mentioned [11,12]. Xi, Qiong Li et al studied on the effects of semi-open space (100 percent ratio piloti) on the outdoor thermal environment of residential communities, by adopting coupled simulation method, but no different piloti ratio cases were compared [13].…”

Section: Relative Research Regarding To Pilotimentioning

confidence: 99%

Research on the influence of piloti on residential block’s outdoor thermal comfort by questionnaire survey and coupled simulation method in Guangzhou, China

Jiang

Mochida

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. Piloti is commonly used to optimize the outdoor thermal environment in subtropical climate cities, and there are few studies regarding to the systematic influence of piloti on outdoor thermal comfort. As the outdoor thermal comfort differed by various climates and locations, this work firstly carried out a questionnaire survey in Guangzhou, China, to study on the local acceptance rate (TSV is lower than 1.5) during different SET* intervals. Secondly, a series of cases were simulated by coupled simulation method, which considering convection, radiation and conduction, offering high precision prediction results. At last, by adopting SET* as standard index, taking both of the questionnaire survey result and ASHRAE standard into consideration, the influence of piloti on residential block's outdoor thermal comfort was analysed and discussed.

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Section: Relative Research Regarding To Pilotimentioning

confidence: 99%

Research on the influence of piloti on residential block’s outdoor thermal comfort by questionnaire survey and coupled simulation method in Guangzhou, China

Jiang

Mochida

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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“…Many types of pilotis are used in high-rise buildings in Korea; however, there has been limited research on this topic. Jo et al [12], Xi et al [13], and Kuo et al [14] found, through numerical and experimental analyses, that the depth of the piloti had an effect on the ceiling and airflow characteristics between a high-rise building with a podium and low-level attached houses. Zeng et al [15] researched the piloti space, which is an important part of buildings located in an area with hot and humid summers and has not been studied sufficiently.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effects of Aspect Ratio on the Wind Pressure Coefficient of Piloti Buildings

You

Lee

2021

Sustainability

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Owing to strong winds during the typhoon season, damage to pilotis in the form of dropout of the exterior materials occurs frequently. Pilotis placed at the end exhibit a large peak wind pressure coefficient of the ceiling. In this study, the experimental wind direction angle of wind pressure tests was conducted in seven directions, with wind test angles varying from 0° to 90° at intervals of 15°, centered on the piloti position, which was accomplished using the wind tunnel experimental system. Regardless of the height of the building, the maximum peak wind pressure coefficient was observed at the center of the piloti, whereas the minimum peak wind pressure coefficient was noted at the corners, which corresponds with the wind direction inside the piloti. The distribution of the peak wind pressure coefficient was similar for both suburban and urban environments. However, in urban areas, the maximum peak wind pressure coefficient was approximately 1.4–1.7 times greater than that in suburban areas. The maximum peak wind pressure coefficient of the piloti ceiling was observed at the inside corner, whereas the minimum peak wind pressure coefficient was noted at the outer edge of the ceiling. As the height of the building increased, the maximum peak wind pressure coefficient decreased. Suburban and urban areas exhibited similar peak wind pressure distributions; however, the maximum peak wind pressure coefficient in urban areas was approximately 1.2–1.5 times larger than that in suburban areas.

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“…Xi et al published field measurement results of various human built elements in Guangzhou [7][8][9][10], including piloti, but no systematic analysis by simulation was used in those research. The influence of piloti on mean radiant temperature simulated by 3-D unsteady state heat balance radiation calculation method was published by Xi, Hong Jin et al but no wind environment was mentioned [11,12]. Xi, Qiong Li et al studied on the effects of semi-open space (100 percent ratio piloti) on the outdoor thermal environment of residential communities, by adopting coupled simulation method, but no different piloti ratio cases were compared [13].…”

Section: Introductionmentioning

confidence: 99%

Study on Comprehensive Influence on Wind Environment of Piloti in Residential Blocks in Guangzhou, China

Xi¹,

Ding²,

Jin³

2016

Proceedings of the 2016 International Forum on Energy, Environment and Sustainable Development

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To get good outdoor ventilation and create shadow areas, piloti is commonly used in tropical and subtropical climate zones, but there are few studies reveal the comprehensive influence of piloti on wind environment in residential blocks, and furthermore, a coupled simulation method, which offers high precision prediction result, is seldom taken into consideration in piloti research field. This work took residential blocks in Guangzhou, China, as an example, by coupled simulation method, researched on the influence of piloti on wind environment of those areas under piloti and out of piloti. The result shows that, the wind velocity out of piloti area was clearly set into 2 parts, the low wind area and high wind area, and along with the increase of piloti ratio, the accumulative distribution rate of low wind velocity decreased, and the slope of average wind velocity was changed when piloti ratio was over 60 percent. The wind velocity under piloti area was very low when piloti ratio is 40 percent, and each 20 percent increase of piloti ratio could highly optimize the wind velocity under piloti area, however, a gentle slope was shown when piloti ratio reached 80 percent.

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Study on the comprehensive influence of Piloti Ratio on mean radiant temperature in residential communities in subtropical climate cities in China

Cited by 5 publications

References 0 publications

Research on the influence of piloti on residential block’s outdoor thermal comfort by questionnaire survey and coupled simulation method in Guangzhou, China

Research on the influence of piloti on residential block’s outdoor thermal comfort by questionnaire survey and coupled simulation method in Guangzhou, China

Experimental Study on the Effects of Aspect Ratio on the Wind Pressure Coefficient of Piloti Buildings

Study on Comprehensive Influence on Wind Environment of Piloti in Residential Blocks in Guangzhou, China

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