Advanced Energy Efficiency, Lecture 2: Industry - Rocky Mountain ...

Even exotic motors can pay
in the right uses
◊ LNG terminal: spherical load-out storage
tanks need continuous circulation
◊ Now uses 68%-efficient immersed
motor/pump system
◊ Could use 89%-efficient superconducting
unit with efficient pump, cutting its boiloff
by 2/3…and leveraging upstream savings
◊ Or maybe ~99% with tiny superconducting
motor & Pax rotor (ring vortex flow)
24 W can circulate ~4 million liters of water
An aerator replaced 137 kW with 0.56 kW
◊ Memo: Paint the dark-green LNG tanks
white too!
Graphics courtesy of
Pax Scientific