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Optimal Device Sizing for Zero Energy Buildings: Sensitivity of Nonlinear Model to Uncertainties

2021· article· en· W3142597781 on OpenAlexaffabout
Mahdi Mehrtash, Ghazaleh Mozafari, Yun Li, Yankai Cao

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicSmart Grid Energy Management
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsSizingZero-energy buildingRenewable energyPhotovoltaic systemSensitivity (control systems)Greenhouse gasThermal energy storageEnvironmental scienceEnergy (signal processing)Computer scienceAutomotive engineeringEngineeringElectrical engineeringElectronic engineeringMathematics

Abstract

fetched live from OpenAlex

Buildings, as one of the major final energy consumers, are among key contributors to greenhouse gas emissions. A zero energy building is, by definition, a building that produces as much energy from renewable sources as it consumes yearly. In this paper, we propose a comprehensive device sizing model to find the most cost-optimal size of thermal and electrical devices in a zero energy building. The presence of several technologies (i.e., photovoltaic panel, solar thermal collector, heat pump, combined heat and power, heat storage tank, and battery energy storage) and their practical nonlinear behavior are considered in the proposed model. Then, to investigate the effect of uncertainties (i.e., demand and weather forecasting errors) in the quality of the optimal solution, a sensitivity analysis with respect to the correlation between uncertainties is performed. Finally, to illustrate the advantages of the proposed model, a typical building located on the Vancouver campus of the University of British Columbia is studied.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.539
Threshold uncertainty score0.641

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.234
Teacher spread0.215 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations5
Published2021
Admission routes2
Has abstractyes

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