On the properties of alternative refrigerants for HCFC22 water chillers applied in the air-conditioning system of nuclear power stations
Bibliographic record
Abstract
As halocarbon refrigerants, HCFC22 and HFC134a are widely available for commercial air-conditioning applications and HCFC22 is the predominant refrigerant in use today. HCFC22 equipment is being specified today in well over one-third of all large tonnage chiller applications in the world, and all large reciprocating water chillers produced in China are HCFC22 installations at present. According to the Copenhagen Amendment to the Montreal Protocol, HCFCs (including HCFC22) are to be phased out completely before January 1, 2030. It is therefore of great importance to develop new water chillers utilizing alternative refrigerants, applied in the air-conditioning system of nuclear power stations. In this work, the physical properties, the refrigeration cycle characteristics and the system characteristics of HCFC22 and HFC134a are compared and analyzed in detail. On the basis of this, technical matters of using HFC134a as the substitute for HCFC22 on water chillers applied in the air-conditioning system of nuclear power stations are discussed.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".