Wood-derived biochar as a matrix for cost-effective and high-performing composite thermal energy storage materials
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.
Bibliographic record
Abstract
Abstract High energy storage density, affordability, and environmental friendliness are the key requirements for materials used in thermal energy storage systems. A new composite thermal energy storage material (TESM) with all these requirements was fabricated by utilizing a biochar matrix. Biochar was derived from the slow pyrolysis of forestry residues, an abundant source of underutilized biomass in Canada. The results of this experimental study indicate that the carbonization conditions of the biomass affect the structure and surface morphology of the biochar and consequently its thermal properties. Amongst the carbonization conditions that were investigated in this study, a peak temperature of 800 °C with a heating rate of 2.5 °C/min yielded a biochar with an energy storage capacity of 508 J/g. This biochar was then used as a matrix for fabricating the composite TESM with salt hydrate. The composite showed high thermal stability after ten hydration/dehydration cycles with an average thermal energy storage capacity of 3795 J/g. The cost of thermal energy storage in this composite was found to be $0.50 CAD /kWh th .
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| 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 it