Urban geometry, SVF and insolation of open spaces: London and Paris

Chatzipoulka, Christina; Nikolopoulou, Marialena

doi:10.1080/09613218.2018.1463015

Cited by 19 publications

(10 citation statements)

References 23 publications

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“…The above observations indicate that there is a "critical" solar altitude angle for which the strength of the relationship between SVF and solar exposure is maximized. This is consistent with the findings of another study which investigated statistically the relation between average solar exposure of open spaces and average ground SVF (Chatzipoulka and Nikolopoulou, 2018). The existence of such a "critical" altitude angle is reasonable as, for the extreme solar altitudes of 0°and 90°, the relationship becomes null: in the first case, all the façades are shaded, and in the second one, they are all orthogonally sunlit (i.e.…”

Section: Results Regarding Solar Irradiances In January and Julysupporting

confidence: 89%

Sky view factor as predictor of solar availability on building façades

et al. 2018

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Section: Results Regarding Solar Irradiances In January and Julysupporting

confidence: 89%

Sky view factor as predictor of solar availability on building façades

et al. 2018

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“…Other studies proved that there are strong interdependencies between urban morphology, urban microclimate and building energy performance (Steemers et al 1998;Ratti, Baker, and Steemers 2005;Allegrini, Dorer, and Carmeliet 2012;Salvati, Coch, and Cecere 2015;Chatzipoulka and Nikolopoulou 2018;Palme, Inostroza, and Salvati 2018). These studies show that the UHI intensity is just one of the climate modifications induced by urban environments.…”

Section: Introductionmentioning

confidence: 80%

Built form, urban climate and building energy modelling: case-studies in Rome and Antofagasta

Salvati

Palme

Chiesa

et al. 2020

Journal of Building Performance Simulation

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The energy performance of urban buildings is affected by multiple climate phenomena such as heat island intensity, wind flow, solar obstructions and infrared radiation exchange in urban canyons, but a modelling procedure to account for all of them in building performance simulation is still missing. This paper contributes to fill this gap by describing a chain strategy to model urban boundary conditions suitable for annual simulations using dynamic thermal simulation tools. The methodology brings together existing physical and empirical climate models and it is applied to 10 case studies in Rome (Italy) and Antofagasta (Chile). The results show that urban climate varies significantly across a city depending on the density of urban texture and its impact on the annual energy demand depends on the region's climate. The urban shadows are crucial in cooling-dominated climates (Antofagasta) while the urban heat island intensity is more important in temperate climates (Rome).

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“…ENVImet, SOLWEIG, RayMan and SkyHelios, as well as the increasingly available open-source resources, such as OpenFoam CFD. These have been used for numerous projects of varying complexity, focusing on the urban realm with some recent projects modelling large areas in cities to evaluate the range of comfort conditions resulting from changes in urban morphology (Chatzipoulka et al 2016;Chatzipoulka and Nikolopoulou 2018;Tsichritzis and Nikolopoulou 2019;Chatzipoulka et al 2020).…”

Section: Discussionmentioning

confidence: 99%