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An exploration of the relationship between density and building energy performance

Urban design international (London, England), 2020-03, Vol.25 (1), p.92-112 [Peer Reviewed Journal]

Springer Nature Limited 2020 ;2020© Springer Nature Limited 2020 ;ISSN: 1357-5317 ;EISSN: 1468-4519 ;DOI: 10.1057/s41289-020-00109-7

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  • Title:
    An exploration of the relationship between density and building energy performance
  • Author: Quan, Steven Jige ; Economou, Athanassios ; Grasl, Thomas ; Yang, Perry Pei-Ju
  • Subjects: Architecture ; Architecture and Design ; Buildings ; Central business districts ; Cities ; Countries ; Density ; Design ; Energy ; Energy consumption ; Office buildings ; Original Article ; Parameters ; Questions ; Regions ; Simulation ; Urban environments ; Urbanism
  • Is Part Of: Urban design international (London, England), 2020-03, Vol.25 (1), p.92-112
  • Description: This paper aims to better understand how building density and shape jointly influence building energy performance in downtown urban environments. Three research questions are addressed: (1) How does the building density influence energy performance? (2) Given the same density, how do different building cover ratios create different impacts on energy performance? And,(3) How do different building typologies affect the density–energy relationship? To explore these questions, a series of parametric simulation experiments were conducted based on a hypothetical urban block structure that mimics the downtown urban grid of Portland. Energy use intensities of the office buildings with fully controlled environments are simulated. In contrast to the hypothesis that energy performance would be enhanced by increasing density, the results suggest that building energy use intensity decreases when density increases to a certain point and then begins to increase. Such a pattern suggests a threshold density that has the minimum building energy use intensity, while other parameters are constant. The study also explores how different building shapes generated with different cover ratio values and building typologies perform in terms of building energy performance, given the same density. Additional experiments extend the findings from Portland to downtown Atlanta and show similar patterns.
  • Publisher: London: Palgrave Macmillan UK
  • Language: English
  • Identifier: ISSN: 1357-5317
    EISSN: 1468-4519
    DOI: 10.1057/s41289-020-00109-7
  • Source: AUTh Library subscriptions: ProQuest Central
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