Solar Desalination Indirect Heating
Bibliographic record
Abstract
A solar unit to produce desalinated water and hot water from saline feed water was designed and tested. The unit consists of a solar collector (5 evacuated tubes) that heats a thermal fluid circulating in a closed loop due to thermo siphoning effect. The hot thermal fluid passes through a water bath giving its thermal energy and causes some of the water in the bath to evaporate. The vapor generated condenses on an inclined glass plate and withdrawn as desalinated water. The effect of the ambient temperature, the solar irradiation, and the other weather conditions on the productivity of the unit (liters of desalinated water produced/hr) was investigated. The results showed that the unit was capable of producing 0.15 L of desalinated water/hr. The experiments showed that the unit productivity was improved by cooling the glass cover on which the water vapor condenses. Two types of thermal fluids were used namely; jojoba oil and water. Water as a thermal fluid gave better productivity. The effect of feed water salinity on the unit productivity was tested by feeding water of salinity ranging between 0.5 g/L (tap water) to 25 g/L. The productivity decreased as the feed water salinity was increased.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 source (direct Gemma or distilled Codex), 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".