Urban geometry and solar availability on façades and ground of real urban forms: using London as a case study

Chatzipoulka, Christina; Compagnon, R.; Nikolopoulou, Marialena

doi:10.1016/j.solener.2016.09.005

Cited by 140 publications

(64 citation statements)

References 31 publications

(37 reference statements)

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“…Additionally, the buildings in the developments Polje and Brdo are set back from the building plot boundary, which would suggest even lower VDF avg values at the same FAR value, in comparison to the models. This, however, does not signify that the rooms in the studied developments are not successfully daylit, as the relationship of the building form with indoor illumination is not as straightforward as it is with received solar irradiation on the external facades and with the energy potential of a building [48]. Urban indicators are inadequate for a complete daylight prediction, since individual characteristics that pertain to interior layout (e.g., room distribution, room depths, etc.)…”

Section: Implications Of the Results For Urban Planning Parameters Inmentioning

confidence: 94%

Daylight Provision Requirements According to EN 17037 as a Restriction for Sustainable Urban Planning of Residential Developments

Šprah

Košir

2019

Sustainability

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The attempt at a more sustainable land use by increasing urban density may have a negative effect on the daylighting of residential buildings. In densely built areas, obstructions generated by the surrounding buildings can substantially reduce the available amount of daylight, causing poorly daylit spaces and a less healthy indoor environment with higher electricity consumption as a consequence of artificial lighting. European standard EN 17037, Daylight in Buildings, was established in 2018 to ensure appropriately daylit spaces. In this paper, a three-step methodology was developed to investigate the relationship between certain urban planning parameters and the daylighting of a typical room defined by specific (Slovenian) legislative restrictions about its geometry and minimum required window to floor area ratio, in order to establish the maximum densities of residential developments still fulfilling the minimum requirements for daylight provision defined by EN 17037. The results show that a relatively low urban density is required to fulfil the stipulations for minimum daylight provision for the deepest permissible room according to the Slovenian legislation. The impact of the development floor area ratio on the daylighting potential of buildings was identified as significant, followed by the site coverage, development layout, and building typology. Furthermore, the developed methodological approach clearly demonstrates a substantial potential for application in urban planning, with indoor daylight environmental conditions being linked to the planning of residential developments in the earliest stages of the project.

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Section: Implications Of the Results For Urban Planning Parameters Inmentioning

confidence: 94%

Daylight Provision Requirements According to EN 17037 as a Restriction for Sustainable Urban Planning of Residential Developments

Šprah

Košir

2019

Sustainability

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“…It is a useful new finding to be applied in supporting the development of science and technology and procurement related to vertical housing that provides opportunities for better life quality and energy efficiency in urban areas. Chatzipoulka et al [66] have aimed to explore relationships between urban geometry and solar availability on building façades and at the pedestrian level, with implications for buildings' passive potential and outdoor thermal comfort, respectively. The study was based on the morphological and solar analysis of 24 urban forms of London, covering a wide range of built density values found across the city.…”

Section: Previous Related Research and Studiesmentioning

confidence: 99%

Impact of Building Typology on Daylight Optimization Using Building Information Modeling: Apartments in Erbil City as a Case Study

Majeed

Mustafa

Husein

2019

Journal of Daylighting

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Daylight represents one of the crucial factors that affect directly on the building performance and its occupants. This study assesses the daylight performance in the multi-storey residential buildings (apartments) in Erbil city. It aims to find out the impact of building typology on daylighting quality and quantity. The endeavour of this research is to determine the optimal plan typology in providing sufficient daylight levels. A simulation method has been used with an academic licensed Revit Architecture 2019 with plugged insight daylight analysis as one of Building Information Modeling (BIM) tools for achieving this goal. Five multi-storey residential buildings were selected as cases of study. Three types of simulation were run on each project: Illuminance, LEED, and Daylight Autonomy to achieve results. The results were analyzed and compared with daylight standards levels. The results demonstrated that the point typology is the best type of plans among all cases in terms of providing optimal daylight performance, while the double-loaded plan typology was the worst. The study concluded that the plan typology has an obvious impact on achieving daylight performance in the multi-storey residential buildings. The current research can contribute to identifying the shortcomings of daylight levels in buildings seeking to overcome it in the early phases of design.

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“…This method is appropriate for urban areas with low buildings. Other studies have focused on both building roofs and façades using simple box-shaped buildings [20][21][22]. They calculated solar potential in each plane of the building containing a vertical plane.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Solar Panel Orientation Considering Temporal Volatility and Scenario-Based Photovoltaic Potential: A Case Study in Seoul National University

Park

2019

Energies

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University campuses accommodate large numbers of people and are suitable places to organize a microgrid. The solar potential in the university area is estimated and the optimal orientation of solar panels is presented in this study. The optimal orientation is analyzed considering temporal volatility to increase the stability of the grid. Several variables are selected and scenarios are designed to consider various investments and technologies. Scenario-specific photovoltaic potentials were estimated using Geographic Information Systems analysis technology. Analysis of temporal volatility was conducted based on the difference between demand and supply of electricity. Optimal panel orientations were presented according to project objectives, such as highest efficiency or low volatility. As a result, the total potential of the study area was tens to hundreds of GWh/year depending on the scenario. The university has an advantage in hourly volatility, but has some problems in monthly volatility. The optimal orientation varies according to objectives and solar power supply ratio. The results of this study are expected to help researchers and technicians in the solar energy industry and assist in urban planning.

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Urban geometry and solar availability on façades and ground of real urban forms: using London as a case study

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 140 publications

References 31 publications

Daylight Provision Requirements According to EN 17037 as a Restriction for Sustainable Urban Planning of Residential Developments

Daylight Provision Requirements According to EN 17037 as a Restriction for Sustainable Urban Planning of Residential Developments

Impact of Building Typology on Daylight Optimization Using Building Information Modeling: Apartments in Erbil City as a Case Study

Optimization of Solar Panel Orientation Considering Temporal Volatility and Scenario-Based Photovoltaic Potential: A Case Study in Seoul National University

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