Fan Engineering — Series / Booster Fan
Series / Booster Fan for mine and tunnel fan systems.
Boosters add pressure where the circuit is starving — deep districts a main fan can't reach economically. Their dark side is recirculation: a booster in the wrong place pulls return air back through leakage paths into intakes. Coal jurisdictions regulate or ban them for exactly that; hard-rock uses them with monitoring.
Formula
Note: Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
Series / Booster Fan for mine and tunnel fan systems. A free mine ventilation & air quality tool — no sign-up, no upload, instant results in your browser.
About Fan Engineering — Series / Booster Fan
Fan Engineering — Series / Booster Fan computes the governing relationship p_combined ≈ (p₁ + p₂) × (1 − leakage penalty) live as you type. Boosters add pressure where the circuit is starving — deep districts a main fan can't reach economically. Their dark side is recirculation: a booster in the wrong place pulls return air back through leakage paths into intakes. Coal jurisdictions regulate or ban them for exactly that; hard-rock uses them with monitoring. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Fan Engineering — Series / Booster Fan
- 1Enter your values — Main fan pressure, Booster pressure, Recirculation/leakage penalty (sensible defaults are pre-filled).
- 2Read the live results: Effective combined pressure.
- 3Check the "with your numbers" line to see p_combined ≈ (p₁ + p₂) × (1 − leakage penalty) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Fan Engineering — Series / Booster Fan?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula p_combined ≈ (p₁ + p₂) × (1 − leakage penalty) with authoritative sources cited on the page (McPherson, M.J., Subsurface Ventilation and Environmental Engineering; Hartman et al., Mine Ventilation and Air Conditioning, 3rd ed.)
- ✓Boosters add pressure where the circuit is starving — deep districts a main fan can't reach economically.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the fan engineering — series / booster fan use?+
It evaluates p_combined ≈ (p₁ + p₂) × (1 − leakage penalty), exactly as published. Sources: McPherson, M.J., Subsurface Ventilation and Environmental Engineering; Hartman et al., Mine Ventilation and Air Conditioning, 3rd ed.. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Boosters add pressure where the circuit is starving — deep districts a main fan can't reach economically. Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
When is this calculator the right tool for the job?+
Series / Booster Fan for mine and tunnel fan systems. A free mine ventilation & air quality tool. Their dark side is recirculation: a booster in the wrong place pulls return air back through leakage paths into intakes. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
Related tools
- Fan Engineering — Natural Ventilation Pressure
- Fan Engineering — Auxiliary Duct Leakage
- Fan Engineering — Auxiliary Duct Sizing
- Fan Engineering — Operating Point (Quadratic Estimate)
- Fan Engineering — Annual Fan Energy Cost
- Air Velocity Check — Production Face
- Air Velocity Check — Conveyor Gateway
- Truck Fleet — Congested Route
- Bolting — TC (Twist-Off) Bolt Install Rate
Related Manufacturing tools
Spindle Speed Calculator — Aluminum 6061
Carbide starting RPM for milling Aluminum 6061: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● LiveSpindle Speed Calculator — Mild Steel 1018
Carbide starting RPM for milling Mild Steel 1018: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● LiveSpindle Speed Calculator — Stainless 304
Carbide starting RPM for milling Stainless 304: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● Live