Coal Methane - Ventilation Rate

Hold-ventilation rate required to keep methane below 20 % LEL during coal voyage - fresh-air make-up calculation.

CoalMethaneVentilation

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\dot V_{vent} = \dot V_{CH_4} / (0.20 \cdot LEL)

Symbol	Meaning	Unit
$LEL$	Lower explosive limit (5 % for methane)
$\dot V$	Ventilation flow rate	m³/h

Source: IMSBC Coal Schedule

Hold-ventilation rate required to keep methane below 20 % LEL during coal voyage - fresh-air make-up calculation.