Outdoor thermal comfort in urban neighbourhoods by coupling of building energy simulation and computational fluid dynamics

Fallahpour, Marzieh; Aghamolaei, Reihaneh; Zhang, Ruijun; Mirzaei, Parham A.

doi:10.1016/j.buildenv.2022.109599

Cited by 7 publications

(2 citation statements)

References 48 publications

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“…Although the framework was location and design-independent, it had limitations, such as considering a constant ground surface temperature in simulations that would underestimate the microclimate impact due to the low spatial resolution of building surface temperatures from the results of BES. Future improvements should incorporate dynamic CFD-based meteorological parameters to allow evaluation of the framework of larger-scale urban areas having diverse building materials and geometries [74].…”

Section: Micro-climate Simulationsmentioning

confidence: 99%

Increasing Solar Reflectivity of Building Envelope Materials to Mitigate Urban Heat Islands: State-of-the-Art Review

Ziaeemehr,

Jandaghian,

et al. 2023

Buildings

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The Urban Heat Island (UHI), a consequence of urban development, leads to elevated temperatures within cities compared to their rural counterparts. This phenomenon results from factors such as urban designs, anthropogenic heat emissions, and materials that absorb and retain solar radiation in the built environment. Materials commonly used in cities, like concrete, asphalt, and stone, capture solar energy and subsequently emit it as heat into the surroundings. Consequently, this phenomenon amplifies summertime cooling energy demands in buildings. To mitigate the UHI impacts, various mitigation strategies have emerged that include but are not limited to using higher solar reflectivity materials, known as “cool materials”, and increasing vegetation and greenery in urban areas. Cool materials have high reflectivity and emissivity, effectively reflecting solar radiation while emitting absorbed heat through radiative cooling. Increasing the solar reflectivity of building envelope materials is a promising sustainable solution to lessen the UHI effects. This state-of-the-art review summarizes the UHI causes and effects, states the mitigation strategies, describes the cool building envelope materials, explains the solar reflectivity index measurements, indicates the building and micro-climate simulations, highlights the performance evaluation of using cool building envelope materials, points out the research gaps, and proposes future research opportunities.

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Section: Micro-climate Simulationsmentioning

confidence: 99%

Increasing Solar Reflectivity of Building Envelope Materials to Mitigate Urban Heat Islands: State-of-the-Art Review

Ziaeemehr,

Jandaghian,

et al. 2023

Buildings

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“…In urban planning, the quantitative assessment of thermal comfort and walkability are considered because they affect the physical and mental health of dwellers . Urban open spaces can improve the quality of living while walkability advantages are related to spatial quality (Gehl, J., 2010). A pedestrian neighbourhood can encourage healthy walking habits and create a lively vibrant street life (Saelens et al, 2008;Speck, 2013).…”

Section: Outdoor Thermal Comfortmentioning

confidence: 99%

Development of an integrated index to quantify thermal comfort and walkability in urban areas

Alnimer,

Mirzaei,

Riffat

2023

E3S Web of Conf.

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Although outdoor thermal comfort is extensively investigated in urban areas, the measures are barely focused to determine the walkability through these spaces. Therefore, a space with a high level of thermal comfort can experience a low level of pedestrian agglomeration while a space with a low level of thermal comfort can be massively used by inhabitants. Therefore, the solution to urban design and planning can be significantly altered if both dimensions are simultaneously taken into the account. This study investigates the relationship between spatial configuration and thermal comfort potential to evaluate the effect of spatial configuration on outdoor environmental quality. For this purpose, a framework is developed to understand the impact of built urban areas on thermal comfort and space syntax performance using a high-resolution spatial model to simulate the correlation of thermal comfort and betweenness centrality of a case study neighbourhood in the hot and humid climate area of Al-Khobar in Saudi Arabia. The mixed-use neighbourhood is analysed by the universal thermal comfort index and several space syntax metrics. The presented study uses Grasshopper environment and Ladybug and Decoding Spaces tools. The simulation study expressed that significant changes in orientation and buildings heights have a remarkable effect on improving OTC and space syntax in the urban neighbourhood.

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A climate sensitive design approach to BIPV: Investigating the nexus between solar energy and thermal comfort in cities in Sweden and Cyprus

Vassiliades,

Lau,

Moiseos

et al. 2023

Building and Environment

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Outdoor thermal comfort in urban neighbourhoods by coupling of building energy simulation and computational fluid dynamics

Cited by 7 publications

References 48 publications

Increasing Solar Reflectivity of Building Envelope Materials to Mitigate Urban Heat Islands: State-of-the-Art Review

Increasing Solar Reflectivity of Building Envelope Materials to Mitigate Urban Heat Islands: State-of-the-Art Review

Development of an integrated index to quantify thermal comfort and walkability in urban areas

A climate sensitive design approach to BIPV: Investigating the nexus between solar energy and thermal comfort in cities in Sweden and Cyprus

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