Case 1: 8 workers / 1 LHD / 55 kW / 10% reserve
Intrare
Workers=8, equipment=LHD ×1, power=55 kW, condition=baseline, simultaneity=100%, local minimum=0
Rezultat
About 3.8 m³/s / 229 m³/min / 8,100 cfm. Governing criterion: diesel equipment.
Minerit calculator
Works offline in the browser
Supports m³/s, m³/min, and cfm
Handles kW and hp inputs
Quick Underground Ventilație Debit de aer Calculator
Quickly estimează required debit de aer from worker count, diesel equipment count, power, and condition factors.
This is a preliminary estimează for early planificare, training, and comparison. It is not a substitute for final ventilație design or regulatory compliance.
Siguranță notă
Toate calculations stay in this browser and are not sent to any server.
- For preliminary estimates, training, and comparison only. Nut a substitute for final ventilație design or legal compliance.
- Review gas, dust, căldură încarcă, oxygen deficiency, and post-blast diluție separately.
- Adjust diesel condition factors to match site standards and equipment maker guidance.
How to use
Nutes
- Enter the worker count for the area you want to ventilate.
- Add one row per diesel equipment type and enter count, power, condition factor, and simultaneity.
- Deschide setările if you need to change debit de aer coefficients, minimum debit de aer, or decimal places.
- Verifică the governing criterion and the final recommended debit de aer in the rezultat pane.
Examples
Intrare / Rezultat
Case 2: 4 workers / 1 service camion / 30 kW / local minimum 120 m³/min
Intrare
Workers=4, equipment=service camion ×1, power=30 kW, condition=controlled, simultaneity=100%, local minimum=120 m³/min, reserve=10%
Rezultat
About 2.2 m³/s / 132 m³/min / 4,700 cfm. Governing criterion: local minimum debit de aer.
Glossary
Underground ventilație debit de aer calculation
- Required debit de aer
- The estimated amount of air that should be supplied to the underground working area.
- Governing criterion
- The largest requirement among personnel, diesel equipment, and local minimum debit de aer.
- Simultaneity
- The partajează of equipment that is expected to operate at the same timp.
- 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 estimează conservative.
Formulas
Internal calculations use m³/s as the base unitate.
- 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
Întrebări frecvente
Nutes
Can I use this for final ventilație design?
Nu. This is for preliminary estimates, training, and comparison. Final design must follow regulations, site standards, and professional judgment.
Does it support both m³/s and cfm?
Da. The display can switch, and the internal calculation uses SI unități.
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?
Adaugă rânds and enter the count, power, and factors for each equipment type separately.
Can I use it offline?
Da. It runs entirely in the browser and does not use external APIs.
Nutes
Internal calculations use m³/s as the base unitate.
- This instrument provides reference calculations. Final design 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 timp if you want easier comparisons.