Variable

Range

$u_1^m$ backup propane mass flow rate

0 - 0.0036 kg/s

$u_2^m$ biogas sharing ratio

0 - 0.99

$u_3^m$ volume flow rate of manure from the lagoon

0 - 59 m³/day

$u_4^m$ induction machine rating

10, 20, 50, 150, 200, 250 hp