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Record W3086750681

Switchless Sorption-Compressor Design

2014· article· en· W3086750681 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueUniversity of Twente Research Information · 2014
Typearticle
Languageen
FieldEngineering
TopicAdvanced Thermodynamic Systems and Engines
Canadian institutionsnot available
Fundersnot available
KeywordsGas compressorRefrigerationPower (physics)Mechanical engineeringComputer scienceEngineeringPhysicsThermodynamics
DOInot available

Abstract

fetched live from OpenAlex

Sorption coolers are free of vibrations and EMI, and have the potential of a long lifetime. They are, therefore, an attractive for cooling sensitive optical detector systems in space, as well as in ground applications. Generally, gas-gap heat switches are utilized for reducing the input power in the desorption phase of the compressor sorption cycle. This is specifically required in space applications since the compressor cells are cooled by radiators which are proportional in size to the compressor input power. In terrestrial applications, such as the METIS instrument in the European Extremely Large Telescope, low input powers may not be the major concern. Especially in applications requiring both a high cooling powers and a large number of compressor cells, complexity and cost may become more important. In order to reduce these, we developed an alternative switchless sorption-compressor design using short-pulse heating. A dynamic thermal model was built for evaluating this concept and for optimizing the compressorcell dimensions and operating parameters. This paper describes the design of compressor cells with and without heat switches, related to the METIS cooler. Furthermore, it presents experimental results on a switchless compressor that were used for validating a dynamic model. In the paper, the impact of the switchless compressor design on the METIS cooler configuration is also considered.

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.

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: Empirical · Consensus signal: none
Teacher disagreement score0.962
Threshold uncertainty score0.218

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 communication0.0000.001
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 head0.026
GPT teacher head0.221
Teacher spread0.195 · 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