Liquid phase

Gas phase

Vapor phase

Biogas phase

$J_l=0$

$J_g=0$

$J_V$

$J_b$

${\dot{q}}_{m,l}=-\dot{m}-{\alpha }_l$

${\dot{q}}_{m,g}=\dot{m}+{\alpha }_b$

${\dot{q}}_{m,V}=\dot{m}$

${\dot{q}}_{m,b}={\alpha }_b$