Development of outdoor thermal comfort model for tourists in urban historical areas; A case study in Isfahan

Nasrollahi, Nazanin; Hatami, Zhila; Taleghani, Mohammad

doi:10.1016/j.buildenv.2017.09.006

Cited by 89 publications

(40 citation statements)

References 85 publications

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“…The coefficient of determination (R 2 ) between the simulation results and measurements is equal to 0.9141 ( Fig. 3) and based on the previous researches [49,51], simulation results in this study have an acceptable level of accuracy.…”

Section: Validation Of Envi-metsupporting

confidence: 64%

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The Effect of Sky View Factor on Air temperature in High-rise Urban Residential Environments

Baghaeipoor

Nasrollahi

2019

Journal of Daylighting

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Urban geometry is defined by the height, length, width, and distance of buildings, which affect the urban environment and its microclimate, especially a high-rise and high-density urban environment, such as Tehran. In this regard, the Sky View Factor (SVF) may often be a desirable criterion in identifying the interaction between urban geometry and the air temperature in densely populated areas. The research aim was to investigate the SVF in an urban microclimate of a high-rise residential complex and to evaluate its effect on air temperature. To do so, a case study of the Atisaz in Tehran as a high-rise urban residential complex was selected as the fundamental study model of this research. The selected configuration was simulated and analyzed using the ENVI-met model. In addition, the effects of the SVF value on air temperature are discussed throughout this paper. SPSS software was used to correlate, analyze, and construct an accurate relationship between air temperature and SVF during the hottest and coldest days of the year. The obtained results showed that there is a direct relation between SVF and air temperature during the day as well as an inverse relation at night. Furthermore, there was a small difference in air temperature for dense and semi-dense spaces in the high-rise residential complex.

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Section: Validation Of Envi-metsupporting

confidence: 64%

“…According to [48][49][50], In many previous studies, the validation of ENVI-met results has been done by comparing the results of simulation and field measurement. The results of these studies indicate that the software simulates the air temperature and SVF with proper accuracy.…”

Section: Validation Of Envi-metmentioning

confidence: 99%

The Effect of Sky View Factor on Air temperature in High-rise Urban Residential Environments

Baghaeipoor

Nasrollahi

2019

Journal of Daylighting

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“…These make ENVI‐met suitable for the evaluation of outdoor thermal conditions in a neighborhood scale. Several studies have used such micro‐meteorological outputs of ENVI‐met to calculate outdoor thermal comfort . ENVI‐met has been validated by various field measurement campaigns.…”

Section: Methodsmentioning

confidence: 99%

“…Several studies have used such micro-meteorological outputs of ENVI-met to calculate outdoor thermal comfort. 28,29 ENVI-met has been validated by various field measurement campaigns. In most of these studies, simulated and measured sets of air temperature are compared.…”

Section: Phase 1: Indoor Thermal Conditionsmentioning

confidence: 99%

Energy performance and summer thermal comfort of traditional courtyard buildings in a desert climate

Zamani

Heidari

Azmoodeh

et al. 2019

Env Prog and Sustain Energy

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Courtyards have been traditionally used as a passive design strategy in desert climates. However, few studies have quantified the thermal performance of this building archetype. This paper explored the indoor and outdoor thermal conditions of a typical courtyard house in Iran. The study was performed in two phases. The first phase showed the effect of the position of the zones located in four sides of the courtyard on their indoor energy use and indoor thermal comfort. The results showed that the east and west sides of the courtyard require the highest cooling demand due to the solar radiation in summer time. Furthermore, maximum discomfort hours occurred in the east zone. In the second phase, hourly air temperature inside and outside of the courtyard were compared during the longest day of the year (21st of June). The results showed that inside of the courtyard was 1.2 °C cooler than the outside on average. Moreover, it was observed that the temperature fluctuations outside of the courtyard were higher than the inside. To sum up, the results showed that courtyards can provide a cooler microclimate in summer time.

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“…Many studies have been done on climate change in historic cities. This includes the development of an outdoor thermal comfort model in urban historical areas as defined by Nasrollahi et al, [24]. Furthermore, Shirani-bidabadi et al analyzed urban heat island (in Isfahan) through thermal analysis [25].…”

Section: Literature Reviewmentioning

confidence: 99%

The Impact of Natural Elements on Environmental Comfort in the Iranian-Islamic Historical City of Isfahan

Habibi

Hoseini

Dehshti

et al. 2020

IJERPH

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Cities directly influence microclimates. As the urbanization expands, and the green spaces diminish, the heat islands begin to emerge. An old technique used during the past centuries—in both hot and dry climates of the central cities of Iran—was the moderation of microclimates via water and plants. With a diachronic approach to the study of the historical Chahar Bagh Street in Isfahan, this paper investigates the impact of the structural changes on its microclimate in three different scenarios, i.e., the street with its features during the Safavid Era (from 1501 to 1736); the street in its current status; and finally a probable critical condition resulting from complete elimination of natural elements from the environment. The mixed strategy used in this study relies on logical reasoning and software-assisted evaluation for comparing the three scenarios. The predicted mean vote (PMV) model was used for measuring thermal comfort. The results indicate that the evaluated comfort-providing area in the Safavid scenario is 7–17 times more favorable than the others. Moreover, the temperature in the contemporary era was found to be 1.5 degrees Celsius cooler than that of the critical status scenario.

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Development of outdoor thermal comfort model for tourists in urban historical areas; A case study in Isfahan

Cited by 89 publications

References 85 publications

The Effect of Sky View Factor on Air temperature in High-rise Urban Residential Environments

The Effect of Sky View Factor on Air temperature in High-rise Urban Residential Environments

Energy performance and summer thermal comfort of traditional courtyard buildings in a desert climate

The Impact of Natural Elements on Environmental Comfort in the Iranian-Islamic Historical City of Isfahan

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