What is the ventilation requirement for Diesel Machinery per KW of engine capacity?

• A. 0.6 m3/s per KW
• B. 0.03 m3/s per KW
• C. 0.06 m3/s per KW
• D. 0.6 m3/s total

Answer: (C)

Ventilation for diesel machinery is set per unit of engine power to proportionally match the amount of exhaust that the engine produces. The standard value is 0.06 cubic metres per second of ventilation air for every kilowatt of engine capacity. This means the needed air flow scales with engine size: multiply the total engine kW by 0.06 to get the required ventilation in m3/s. For example, a 100 kW engine requires about 6 m3/s, and a 10 kW engine requires about 0.6 m3/s. If you have multiple engines, you can sum each engine’s per-kW requirement (or multiply the total kW by 0.06). The option presenting a total value (0.6 m3/s) is only correct for a 10 kW total capacity; the standard reference is the per-kW rate, which is why 0.06 m3/s per kW is the best answer.