aquakin.required_airflow#

aquakin.required_airflow(kla, volume, system)[source]#

Air flow rate (m³/d) that produces kLa in a tank of volume m³.

A given kLa is delivered by a given airflow: the standard oxygen transfer SOTR = kLa · C_s,std · V (g O₂/d, the clean-water transfer at zero DO) must equal SOTE · o2_per_air · Q_air. So Q_air = SOTR / (SOTE · o2_per_air). The operating DO deficit does not enter – it sets how much oxygen dissolves (the AOTR), not the air needed.

Parameters:

  • kla (float or jnp.ndarray) – Mass-transfer coefficient (1/d).

  • volume (float or jnp.ndarray) – Tank liquid volume (m³).

  • system (AerationSystem)

Returns:

Air flow rate (m³/d).

Return type:

jnp.ndarray