Case 1: 8 workers / 1 LHD / 55 kW / 10% reserve
Girdi
Workers=8, equipment=LHD ×1, power=55 kW, condition=baseline, simultaneity=100%, local minimum=0
Çıktı
About 3.8 m³/s / 229 m³/min / 8,100 cfm. Governing criterion: diesel equipment.
Madencilik hesaplayıcı
Works çevrimdışı in the tarayıcı
Supports m³/s, m³/min, and cfm
Handles kW and hp inputs
Quick Underground Ventilation Airflow Hesaplayıcı
Quickly tahmin required airflow from worker count, diesel equipment count, power, and condition factors.
This is a preliminary tahmin for early planning, training, and comparison. It is not a substitute for final ventilation tasarım or regulatory compliance.
Safety note
All calculations stay in this tarayıcı and are not sent to any sunucu.
- For preliminary tahmins, training, and comparison only. Not a substitute for final ventilation tasarım or legal compliance.
- Review gas, dust, heat load, oxygen deficiency, and post-blast dilution separately.
- Adjust diesel condition factors to match site standards and equipment maker guidance.
How to use
Notlar
- Enter the worker count for the area you want to ventilate.
- Add one row per diesel equipment tür and enter count, power, condition factor, and simultaneity.
- Open ayarlar if you need to change airflow coefficients, minimum airflow, or decimal places.
- Check the governing criterion and the final recommended airflow in the result pane.
Examples
Girdi / Çıktı
Case 2: 4 workers / 1 service truck / 30 kW / local minimum 120 m³/min
Girdi
Workers=4, equipment=service truck ×1, power=30 kW, condition=controlled, simultaneity=100%, local minimum=120 m³/min, reserve=10%
Çıktı
About 2.2 m³/s / 132 m³/min / 4,700 cfm. Governing criterion: local minimum airflow.
Glossary
Underground ventilation airflow calculation
- Required airflow
- The tahmind amount of air that should be supplied to the underground working area.
- Governing criterion
- The largest requirement among personnel, diesel equipment, and local minimum airflow.
- Simultaneity
- The paylaşım of equipment that is expected to operate at the same time.
- Condition factor
- A reference factor that reflects differences in equipment condition or aftertreatment.
- Reserve margin
- An added percentage above the governing criterion to keep the tahmin conservative.
Formulas
Internal calculations use m³/s as the base unit.
- Q_people = N_people × R_people
- Q_row = N_i × P_i × F_condition_i × F_simultaneity_i × R_diesel
- Q_governing = max(Q_people, ΣQ_row, Q_local_min)
- Q_design = Q_governing × (1 + reserve / 100)
- 1 m³/s = 60 m³/min = 2118.88 cfm
Frequently asked questions
Notlar
Can I use this for final ventilation tasarım?
No. This is for preliminary tahmins, training, and comparison. Final tasarım must follow regulations, site standards, and professional judgment.
Does it support both m³/s and cfm?
Yes. The display can switch, and the internal calculation uses SI units.
What does the condition factor mean?
It is a reference factor for site standards, aftertreatment, maintenance state, and similar differences.
What if there are multiple diesel equipment types?
Add rows and enter the count, power, and factors for each equipment tür separately.
Can I use it çevrimdışı?
Yes. It runs entirely in the tarayıcı and does not use external APIs.
Notlar
Internal calculations use m³/s as the base unit.
- This tool provides reference calculations. Final tasarım must prioritize local regulations, internal standards, and manufacturer conditions.
- Adjust the condition and worker coefficients to your site assumptions.
- Enter only the equipment that actually runs at the same time if you want easier comparisons.