❓ Can the setback distance of a mine ventilation duct be increased without losing efficiency?

New research has proven: even with a 21-meter setback from the working face, the air jet maintains its effectiveness, fully ventilating the dead-end drift.

🔹 Key findings:

✔️ Experiments conducted in an actual 29.2 m² cross-section drift with five setback variants (10-21 m)
✔️ 21.75 m/s jet velocity ensured proper ventilation even at maximum distance
✔️ Results verified through computer modeling
✔️ Derived equation correlates face velocity with drift geometry

🔹 Why it matters:

The discovery allows safely increasing duct setback to 20m for large cross-section drifts, simplifying mining operations.

For more information, see the article:

📌 Kamenskikh A.A., Faynburg G.Z., Semin M.A., Tatsiy A.V. Experimental study on forced ventilation in dead-end mine working with various setbacks of the ventilation pipeline from the working face. Mining Science and Technology (Russia). 2024;9(1):41-52. https://doi.org/10.17073/2500-0632-2023-08-147


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How to Optimize Ventilation in Mines Using Diesel Equipment?

🔹 Problem: Modern mines utilize high-power diesel equipment, significantly increasing ventilation load. Traditional airflow calculation methods overestimate requirements by 50%, leading to substantial costs.

🔹 Solution: Researchers developed a novel methodology based on field measurements of actual emissions and numerical simulation. This enables precise determination of airflow needed to dilute harmful substances to safe concentrations.

🔹 Key Results:
✅ Reduced ventilation costs through accurate emission accounting
✅ Optimized air distribution in mine workings
✅ 3.5× decrease in CO and NO₂ concentrations with proper ventilation

For more information, see the article:

📌 Senatorov V.A. Determining airflow requirements in mine workings based on field measurements of actual emissions from internal combustion engine equipment. Mining Science and Technology (Russia). 2024;9(1):53-59. https://doi.org/10.17073/2500-0632-2024-01-203

💡 Conclusion: Innovative calculation methods represent a breakthrough in cost efficiency and environmental safety for mining operations!

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