The characteristics of dynamic and non-uniform thermal radiation experienced by pedestrians in a street canyon

Zhao, Huihui; Xu, Genyu; Shi, Yurong; Li, Jinglei; Zhang, Yufeng

doi:10.1016/j.buildenv.2022.109361

Cited by 14 publications

(2 citation statements)

References 43 publications

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“…The microclimate of high-rise buildings changes with increasing altitude above ground, more specifically, wind speed increases, while dry bulb temperature drops. Urban studies have also shown that the opposite is often the case, as the Venturi effect and downward drafts may cause higher speeds at the base of tall buildings [40,41], whereas overshading the pedestrian level may cause significantly lower temperatures there than at the sunny top of a tower [42][43][44]. The above relationships have a direct effect on heating and cooling loads in relation to height [45,46].…”

Section: Background Studiesmentioning

confidence: 99%

Climatic Variability in Altitude: Architecture, Thermal Comfort, and Safety along the Facade of a Residential Tower in the Mediterranean Climate

2023

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This research is part of a wider study on the sustainability of high-rise buildings within the urban environment. The focus here is on wind and temperature stratifications per different height through in situ monitoring on a high-rise residential tower in the Mediterranean climate of Tel Aviv, and their impact on thermal comfort and user safety. The appropriateness of design is discussed in relation to the direct exposure to higher-up wind velocities, the thermal perception of the residents through questionnaires, and the safety and usability of the outdoors space according to height. The potential for advancing the energy efficiency of the structure is also discussed. The study covers a hot and a cold season, focusing on the specificities of the wind regime in the specific climate, through seasonal variations. Results from the monitoring of data confirmed increased wind and gust velocities per building height all year round, reaching the level of danger for the occupants during winter, cancelling, thus a successful operation of the outdoor balcony space. The occupants’ perception and use of the outdoor balcony space per building height were in direct relationship to the increased wind velocities per height. Discussion and conclusions critically evaluate the residential high-rise building typology in the Mediterranean climate through the design of the outdoor balcony space along the height of the envelope. The results set an initial understanding and delineation for future studies, while underlining the complications of designing and occupying tall buildings and the level of detailing required.

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Section: Background Studiesmentioning

confidence: 99%

Climatic Variability in Altitude: Architecture, Thermal Comfort, and Safety along the Facade of a Residential Tower in the Mediterranean Climate

2023

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“…In solar power, gas turbines, aircrafts, space vehicles and missile technology, the application of the radiative phenomenon is also observed. Zhao et al [12] addressed the features of thermal radiation associated with street canyons. Ramesh et al [13] presented the decomposition of the thermophoretic phenomenon for carbon nanotubes with radiative analysis.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Thermal Diffusion and Radiative Stagnation Point Flow of Nanofluid with Viscous Dissipation and Slip Constrains: Keller Box Framework Applications to Micromachines

et al. 2022

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The radiated flow of magnetized viscous fluid subject to the viscous dissipation phenomenon is numerically studied. The radiative phenomenon is addressed with nonlinear relations. Further, analysis is performed by using the slip effects and convective thermal flow constraints. The transformed problem is numerically evaluated using the Keller Box method. The physical parameter effects, such as the magnetic parameter for the velocity profile, Prandtl number, Brownian motion parameter and Biot number for the energy profile and Lewis number, and the thermophoresis parameter for the concentration profile are discussed. The obtained results suggest applications in enhancing the heat transfer phenomenon, thermal system, energy generation, heat transmission devices, power generation, chemical reactions, etc.

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The impact of tree species and planting location on outdoor thermal comfort of a semi-outdoor space

et al. 2023

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The characteristics of dynamic and non-uniform thermal radiation experienced by pedestrians in a street canyon

Cited by 14 publications

References 43 publications

Climatic Variability in Altitude: Architecture, Thermal Comfort, and Safety along the Facade of a Residential Tower in the Mediterranean Climate

Climatic Variability in Altitude: Architecture, Thermal Comfort, and Safety along the Facade of a Residential Tower in the Mediterranean Climate

Nonlinear Thermal Diffusion and Radiative Stagnation Point Flow of Nanofluid with Viscous Dissipation and Slip Constrains: Keller Box Framework Applications to Micromachines

The impact of tree species and planting location on outdoor thermal comfort of a semi-outdoor space

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