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Record W7106825027 · doi:10.14288/cjur.v5i1.189391

Engine Efficiency of a Leidenfrost Droplet Transporting System

2017· article· en· W7106825027 on OpenAlexaff

Bibliographic record

VenueOpen Collections · 2017
Typearticle
Languageen
FieldEngineering
TopicFluid Dynamics and Heat Transfer
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsLeidenfrost effectWork (physics)Heat engineBoilingEfficient energy useSuperheatingPower (physics)

Abstract

fetched live from OpenAlex

Leidenfrost droplet transporting engine energy efficiencies were calculated to determine its feasibility and practicality for various industrial purposes. The engine relied on the Leidenfrost effect to transport water droplets across a superheated aluminum surface with ratchet-like topology (Cole et al., 2015; Linke et al., 2006; Wells et al., 2015). An established protocol was used, permitting an unbiased analysis of only relevant data. Acceleration-time data was collected using Logger Pro 3® motion-tracking software and work was calculated using a Riemann summation technique. A power meter measured the hot plate’s total power input over 3-hours. Average trial times were used to determine each trial’s energy input, and engine efficiencies were subsequently calculated. Droplet size and ratchet angle were varied as parameters in attempt to optimize engine efficiency. The results indicate that this linear Leidenfrost system has an extremely low average percent efficiency (2.86E-07%), analogous to that of a rotational Leidenfrost system (Wells et al., 2005). Varying the droplet size or ratchet angle, as a variation and extension of previous studies, did not influence the efficiency to any statistically meaningful extent.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
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 score0.002
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.001

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 head0.011
GPT teacher head0.226
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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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
Published2017
Admission routes1
Has abstractyes

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