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Record W2970808437 · doi:10.1615/thmt-18.60

Some Heat and Mass Transfer Problems in Fuel Cells and Hydrogen Systems

2018· article· en· W2970808437 on OpenAlexaff
Ned Djilali

Bibliographic record

VenueProceeding of THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer · 2018
Typearticle
Languageen
FieldEngineering
TopicCombustion and Detonation Processes
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsMultiphysicsHydrogen fuelMass transferProcess engineeringEnvironmental scienceRegenerative fuel cellHeat transferEnergy transformationBuoyancyTransport phenomenaChemical energyFuel cellsNuclear engineeringMaterials scienceMechanicsEngineeringThermodynamicsPhysicsChemical engineeringFinite element method

Abstract

fetched live from OpenAlex

Hydrogen and fuel cell systems have been the focus of sustained research to provide a pathway to decarbonize the energy system. Fuel cell technology involves a range of materials and transport processes that allow direct and high efficiency conversion of chemical energy to electricity. Heat and mass transport processes play a critical role in all operating aspects and in every component of a fuel cell and span from multiphysics transport in nanostructured electrodes, to turbulent flow in manifolds. The distribution and storage of compressed hydrogen−the fuel of choice for fuel cells−present a number of interesting turbulent mass transfer problems involving buoyancy effects and a variety of venting/leak geometriesand environmental conditions such as cross winds. Understanding of turbulent mixing under various scenarios is critical to the formulation of safety standards. This paper provides an overview of some of the experimental and modelling challenges and progress related to this rich array of heat and mass transport problems.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.146
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.001
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 head0.013
GPT teacher head0.219
Teacher spread0.206 · 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.

Study designBench or experimental
Domainnot available
GenreEmpirical

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

Citations0
Published2018
Admission routes1
Has abstractyes

Explore more

Same venueProceeding of THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass TransferSame topicCombustion and Detonation ProcessesFrench-language works237,207