Magnetic Bearing Turbo Expander

SmarTurbo is a group company focused on R&D, manufacturing and sales of high speed turbo blower, turbo compressor and vacuum pump. We have built the most comprehensive research and development system of high speed permanent-magnet synchronous motor, air bearing and magnetic bearing and aerodynamics for mass-production of turbo blower, turbo compressor and vacuum pump.

Magnetic bearing turbo expander, also called expander generator, is the core technology of Organic Rankine Cycle (ORC) technology in the distributed power generation system.

Turbo expander, as a standalone integrated unit (component level) rather than a complete ORC package (excluding heat exchanger, condenser, working fluid pump, and other balance-of-plant equipment), is widely used for both land-based and marine applications.

With R245fa / R1233zd(E) working fluid, turbo expander is custom-designed.

Magnetic Bearing Turbo Expander Core Technology

Magnetic bearing turbo expander consist of core technology of High Speed Impeller, High Speed Motor, Magnetic Bearing, High Speed Rotor, High Speed Rotor Coil and Volute.

High Speed Impeller

Magnetic bearing turbo expander adopts design concept of three-dimensional flow impeller, which improves impeller efficiency up to 95%,realizes wide operation range, and volume flow adjustable from 45% to 100%.

High Speed Motor

Permanent magnet synchronous motor is with electromagnetic efficiency up to 98%, wide range of high efficient operation, directly-driven loading, and without transmission loss.

Magnetic Bearing

Magnetic bearing is designed for complex operating conditions like high speed, extreme temperature, large loading and strong vibration.

High Speed Rotor

Variable frequency and speed control is good for the motor rotating in maximum speed of 200000 rpm.

High Speed Rotor Coil

Class H insulation is adopted to make the motor has high reliability and durability even operating in high temperature, strong corrosion and current shock.

Volute

High efficient aerodynamic design ensure good aerodynamic performance of blade and low aerodynamic noise, which help satisfy high pressure ratio, high efficiency and large flow aerodynamic performance.

Magnetic Bearing Turbo Expander Parameter Table

Model	Hot Water				Steam
Model	100KW	200KW	300KW	600KW	100KW	200KW	300KW	600KW
Expander Inlet Pressure (MPa)	0.502287	0.502287	0.502287	0.502287	1.5	1.5	1.5	1.5
Expander Inlet Temperature (℃)	74.32001	74.32001	74.32001	74.32001	122.5294	122.5294	122.5294	122.5294
Expander Outlet Pressure (MPa)	0.206909	0.209417	0.20756	0.207524	0.268573	0.270452	0.272132	0.273818
Refrigerant Flow Rate (kg/hr)	27683.07	57045.29	87670.54	166092.2	16749.76	33555.6	48794.01	99213.57
Rotation Speed (RPM)	14500	11000	8000	6000	25000	18000	15000	10000