Towards Understanding an Imperfect Built Environment: A Methodology for In-Situ Characterization of Building Envelope Thermal Performance

dc.contributor.advisor Rakha, Tarek
dc.contributor.author Pilet, Tyler J.
dc.contributor.committeeMember Brown, Jason
dc.contributor.committeeMember Gentry, Russell
dc.contributor.committeeMember Ordonez, Juan C.
dc.contributor.committeeMember Metzger, Cheryn E.
dc.contributor.department Architecture
dc.date.accessioned 2023-07-26T18:45:19Z
dc.date.available 2023-07-26T18:45:19Z
dc.date.created 2022-05
dc.date.issued 2022-04-01
dc.date.submitted May 2022
dc.date.updated 2023-07-26T18:45:20Z
dc.description.abstract As buildings age, retrofits are becoming an increasingly important topic for the ever-growing and aging existing building stock. Following construction, a building's energy footprint typically remains relatively stagnant, effectively locking-in that building's energy usage for its lifetime. With 50% of America’s building stock built before 1980 and only 0.5–1% of existing buildings retrofitted annually, it is essential to reduce guesswork and make building energy retrofits more accessible to reduce the energy footprint of the building sector. Building retrofits are plagued by a lack of original design documentation and general uncertainty regarding the building's envelope composition and integrity. The goal is this work is to utilize the power of transient heat transfer modeling to non-intrusively characterize the thermal properties of a building's envelope to inform energy modeling, facade design, and project appraisal. This thesis presents a literature survey of the state-of-the-art in in-situ thermal testing, a thermal characterization methodology to non-destructively identify representative thermal properties for existing building envelopes, a simulation-based study to verify the thermal characterization method, two physical experiments to validate the thermal characterization method, and a proof-of-concept machine learning approach to classify in-service assemblies via the proposed thermal characterization methodology. This dissertation is designed to bridge the gap between the discrete procedures of building audits and building energy modeling processes to enable a better understanding of existing building envelopes and reduce guesswork from envelope retrofits.
dc.description.degree Ph.D.
dc.format.mimetype application/pdf
dc.identifier.uri https://hdl.handle.net/1853/72429
dc.language.iso en_US
dc.publisher Georgia Institute of Technology
dc.subject Building Envelope
dc.subject Retrofit
dc.subject Non-Destructive Evaluation
dc.subject Heat Transfer
dc.subject Thermal Performance
dc.title Towards Understanding an Imperfect Built Environment: A Methodology for In-Situ Characterization of Building Envelope Thermal Performance
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Rakha, Tarek
local.contributor.corporatename College of Design
local.contributor.corporatename School of Architecture
local.relation.ispartofseries Doctor of Philosophy with a Major in Architecture
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thesis.degree.level Doctoral
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