A comprehensive 6E analysis of a novel multigeneration system powered by solar-biomass energies
Bibliographic record
Abstract
This study presents a novel multigeneration system comprising five different cycles driven by a combination of solar and biomass energy resources. This system includes a modified gas turbine cycle, a trans-critical CO2 cycle (TCO2), a steam Rankine cycle, a biomass-fueled boiler, and a solar collector. The gas turbines exhibit limited thermal efficiency, primarily due to substantial heat losses. Consequently, the TCO2 cycle and the steam Rankine cycle are integrated into the system to improve performance. An innovative aspect of this study is the utilization of a unique configuration of transcritical CO2 and steam Rankine cycles, combined with biomass and solar energies, aimed at maximizing energy recovery and minimizing waste. Furthermore, a proton membrane electrolyzer (PEME) is integrated into the system for hydrogen production, along with a proton membrane fuel cell (PEMFC) to increase electricity generation. In this comprehensive analysis, in addition to energy and exergy analyses, exergoeconomic, exergoenvironmental, emergoeconomic, and emergoenvironmental analyses are conducted. The results indicate that the proposed system achieves notable energy and exergy efficiencies of 20.2 % and 15.2 %, respectively. The total investment cost rate for the system equipment is 0.007554 $/s and the system's environmental impact is 0.0008611 pt/s. The results of the emergy analysis reveal that the emergoeconomic values of the streams are lower than the corresponding environmental values, primarily due to the higher environmental impact throughout the components' life cycle compared to their economic value.
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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 | 0.001 |
| 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 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".