Experimental and Theoretical Investigations of a Novel Multi-Stage Direct Contact Membrane Distillation Module
Why this work is in the frame
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Bibliographic record
Abstract
Global climate change and variability have a negative impact on a water supply and quality in remote areas by reducing water availability and contaminant dilution. This will continue to be exacerbated by limited and inadequate water supply, insufficient water treatment and low infrastructure. Thus, an economic desalination system with a small scale and footprint for such regions is strongly demanded in the desalination markets. Here, a direct contact membrane distillation (DCMD) process has the simplest configuration and potentially the highest permeate flux among all the possible MD processes. And it also can be consisted easily by a multi-stage manner to achieving an enhancement of compactness, productivity, versatility and cost-effectiveness. In this study, therefore, an innovative multistage direct contact membrane distillation module under countercurrent-flow operation is first designed and both theoretically and experimentally investigated to identify the feasibility and operability of its design for the desalination. For a three-stage DCMD module with a membrane area of 0.01 m 2 at each stage, the daily water production is found to be 21.5 kg at the inlet feed and permeate flow rates of 1.5 l/min and the inlet feed and permeate temperature of 70 C and 25 C.
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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 | 0.001 |
| 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 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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 it