Evaluation of a Vertical Axis Wind Turbine for Use in Rural Areas
Bibliographic record
Abstract
With the constant increase in the need for electricity, the use of wind energy emerges as an alternative that is capable of meeting these demands. Considering that several regions in Brazil have a great potential for wind power, it is necessary to develop technologies and investments to ensure the growth of this energy source. The purpose of this project was to study the technical and economic feasibility of a vertical axis wind turbine, which employed a washing machine motor, a servomotor and an alternator for electricity generation, in order to verify which generation system presents better efficiency. Additionally, the unit costs of the energy produced in each generation system were determined and compared to the value of the electricity tariff charged by the concessionaire for rural consumers. Based on the collected data relating to voltages and electric currents, the power and the wind-mechanical, mechanical-electrical and wind-electrical efficiencies of each generator system were calculated, allowing a comparison between these values. The alternator presented the best wind-mechanical efficiency (5.02%) and the best wind-electrical efficiency (0.47%). The washing machine motor showed the best mechanical-electrical efficiency (11.33%). The results showed that the systems have little efficiency in the generation of electricity, and the cost of energy generated indicates values much higher than those practiced by the local electricity concessionaire.
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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 | 0.001 | 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 | 0.001 |
| 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".