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dc.contributor.advisorGrinham, Jonathan
dc.contributor.authorYarnell, Adam Ross
dc.date.accessioned2022-06-09T04:12:54Z
dc.date.created2022
dc.date.issued2022-06-08
dc.date.submitted2022-05
dc.identifier.citationYarnell, Adam Ross. 2022. The Evolving Carbon Balance of High-Performance Buildings. Master's thesis, Harvard Graduate School of Design.
dc.identifier.other29213187
dc.identifier.urihttps://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37372354*
dc.description.abstractHighly operationally-efficient buildings typically require significant embodied flows to guarantee low energy consumption. To highlight this tension, an operational energy simulation of a prototypical mid-rise apartment was equipped with all-electric heating, ventilation, and air conditioning (HVAC) systems. The building was then upgraded from the comparatively under-performing ASHRAE 90.1-2004 standard to the higher-performing PHIUS 2021 certification, while the grid that supplied the building was simulated with aggressive, moderate, and business-as-usual emissions intensity scenarios. To assess life-cycle impacts, changes to the building’s structure, foundation, enclosure, and mechanical equipment were evaluated using life-cycle assessment (LCA), and refrigerant impacts were calculated separately using a range of 100-year global warming potentials (GWP) and leakage assumptions. In the end, the ranking of optimal high-performance building strategies is sensitive to different combinations of grid, refrigerant, and carbon accounting assumptions. As an example, the results suggest that, given a rapidly decarbonized grid, operationally-inefficient buildings with low-embodied-carbon materials will emit less life-cycle carbon than certain low-energy buildings with standard materials.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dash.licenseLAA
dc.subjectElectrification
dc.subjectHigh-Performance Buildings
dc.subjectLife-Cycle Assessment
dc.subjectLife-Cycle Carbon
dc.subjectPassive House
dc.subjectRefrigerants
dc.subjectArchitectural engineering
dc.subjectArchitecture
dc.subjectSustainability
dc.titleThe Evolving Carbon Balance of High-Performance Buildings
dc.typeThesis or Dissertation
dash.depositing.authorYarnell, Adam Ross
dc.date.available2022-06-09T04:12:54Z
thesis.degree.date2022
thesis.degree.grantorHarvard Graduate School of Design
thesis.degree.levelMasters
thesis.degree.nameMDes
dc.contributor.committeeMemberNorford, Leslie K.
dc.type.materialtext
thesis.degree.departmentAdvanced Studies Program
dash.author.emailaryarnell@gmail.com


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