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Record W6981084643

'Development of New Refrigerant for Air-Conditioning System'

2005· other· en· W6981084643 on OpenAlexaboutno aff

Bibliographic record

VenueUTPedia (Universiti Teknologi Petronas) · 2005
Typeother
Languageen
FieldEarth and Planetary Sciences
TopicAtmospheric chemistry and aerosols
Canadian institutionsnot available
Fundersnot available
KeywordsRefrigerantMontreal ProtocolOzoneEndothermic processOzone depletionBoiler feedwaterSodium chlorateGlobal-warming potential
DOInot available

Abstract

fetched live from OpenAlex

Ozone depletion and global warming or more accurately climate change are major environmental concerns with serious implications for the future development of the refrigerant based industries. The industry has reacted to reduce ozone depletion but the follow-on consequences of trying to react to the need to reduce the emission of greenhouse gasses. Consequent upon the Montreal Protocol and its adjustments came to measure to reduce the production and use of materials with high ozone depletion potentials. First, the halons were banned, then the chlorofluorocarbons (CFCs) and now there's a push to ban the hydrochlorofluorocarbon (HCFCs) on a time scale which becomes shorter with each new amendments to the protocol. The rush for developing new refrigerant working fluid is at peak now considering the impact on ozone depletion, global warming, economics safety and efficiency. In this study, six potential refrigerant working fluids are investigated based on the enthalpy of solution and the pH using calorimetry method. Sodium chlorate ofmolaltiy 5.637 mol/kg is the most suitable refrigerant for the new air conditioning system using the membrane technology. The l5°C temperature decrement of the solution provides a large driving force for heat transfer from ambient to the endothermic salt solution. Experiment results shows that in a well insulated system, the endothermic salt solution could provide cooling of hot air to l8°C - 20°C for up to 50 minutes. Sodium chlorate is also non-toxic as compared to Freon-22, highly stable and do not corrode copper coils. This eliminates the waste treatment required by Freon-22.

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 categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.103
Threshold uncertainty score1.000

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)0.0170.000

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 head0.014
GPT teacher head0.201
Teacher spread0.187 · 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 designNot applicable
Domainnot available
GenreOther

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
Published2005
Admission routes1
Has abstractyes

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