TURBOMACHINERY
Absolut System offers circulators, pumps, compressors and turbines for space, industrial and laboratory applications.
Absolut System offers circulators, pumps, compressors and turbines for space, industrial and laboratory applications.
TURBOMACHINERY
Absolut System offers circulators, pumps, compressors and turbines for space, industrial and laboratory applications.
How it works
How it works
A turbomachine is a system that transfers energy between a rotating part, called a rotor, and a fluid. Absolut System supplies motor-compressors and turbo-alternators specifically designed for applications at cryogenic temperatures (<120K).
Our turbomachines are made up of two main parts: the stator part, comprising an electric motor or alternator, and the rotor part, comprising the rotating shaft through which the fluid flows.
Turbomachine types
Turbomachine types
There are two main categories of turbomachines:
There are two main categories of turbomachines:
There are two main categories of turbomachines:
There are two main categories of turbomachines:
-
Pumps, compressors
and circulatorsTurbines
The kinetic energy of the rotor’s rotation is transferred to the fluid and converted into mechanical energy: the pressure increases.
Pumps compress liquids, whereas compressor and circulator fluids are gaseous. For both pumps and compressors, the pressure differential between the fluid entering and leaving the system is high. In the case of circulators, on the other hand, the increase in pressure remains low, as their primary role is to generate fluid flow.
Pressure rise varies with rotor speed. The higher the speed, the greater the available energy and the greater the fluid compression.
-
Pumps, compressors and circulators:
Turbines
Pumps, compressors
and circulators:Turbines
The compressed fluid expands, driving the shaft in rotation. This transfer of energy from the fluid to the rotor produces a mechanical torque that usually drives an alternator or pump.
When a turbo-alternator and a motor-compressor are included in the same thermodynamic cycle, part of the energy recovered by the turbine alternator is used to power the electric motor driving the compressor rotor. This management of electrical energy results in a better energy ratio (cooling power/overall operating power).
-
Pumps, compressors and circulators
Turbines
Pumps, compressors
and circulatorsTurbines
The kinetic energy of the rotor’s rotation is transferred to the fluid and converted into mechanical energy: the pressure increases.
Pumps compress liquids, whereas compressor and circulator fluids are gaseous. For both pumps and compressors, the pressure differential between the fluid entering and leaving the system is high. In the case of circulators, on the other hand, the increase in pressure remains low, as their primary role is to generate fluid flow.
Pressure rise varies with rotor speed. The higher the speed, the greater the available energy and the greater the fluid compression.
-
Pumps, compressors and circulators:
Turbines
Pumps, compressors
and circulators:Turbines
The compressed fluid expands, driving the shaft in rotation. This transfer of energy from the fluid to the rotor produces a mechanical torque that usually drives an alternator or pump.
When a turbo-alternator and a motor-compressor are included in the same thermodynamic cycle, part of the energy recovered by the turbine alternator is used to power the electric motor driving the compressor rotor. This management of electrical energy results in a better energy ratio (cooling power/overall operating power).
Our technologies
Our technologies
Our advanced technologies (hydrodynamic gas bearings, high-efficiency centrifugal impellers) make our compressors, pumps, circulators and turbines highly reliable and efficient systems, even in the most demanding environments.
Key Points
- Reliable, long-life turbomachinery >10 years maintenance-free
- Compact, lightweight units quickly operational and efficient
- Compatible with high-purity applications: contamination-free fluid retention thanks to oil- and lubricant-free compression
- Wide operating range thanks to motor speed control
- Low vibration levels
Pumps, compressors and circulators: increase fluid pressure.
Turbines: pressure reduction (fluid expansion).
-
Pumps, compressors and circulators
Turbines
Pumps, compressors
and circulatorsTurbines
The kinetic energy of the rotor’s rotation is transferred to the fluid and converted into mechanical energy: the pressure increases.
Pumps compress liquids, whereas compressor and circulator fluids are gaseous. For both pumps and compressors, the pressure differential between the fluid entering and leaving the system is high. In the case of circulators, on the other hand, the increase in pressure remains low, as their primary role is to generate fluid flow.
Pressure rise varies with rotor speed. The higher the speed, the greater the available energy and the greater the fluid compression.
-
Pumps, compressors and circulators:
Turbines
Pumps, compressors
and circulators:Turbines
The compressed fluid expands, driving the shaft in rotation. This transfer of energy from the fluid to the rotor produces a mechanical torque that usually drives an alternator or pump.
When a turbo-alternator and a motor-compressor are included in the same thermodynamic cycle, part of the energy recovered by the turbine alternator is used to power the electric motor driving the compressor rotor. This management of electrical energy results in a better energy ratio (cooling power/overall operating power).
Our technologies
Our technologies
Our advanced technologies (hydrodynamic gas bearings, high-efficiency centrifugal impellers) make our compressors, pumps, circulators and turbines highly reliable and efficient systems, even in the most demanding environments.
Key Points
- Reliable, long-life turbomachinery >10 years maintenance-free
- Compact, lightweight units quickly operational and efficient
- Compatible with high-purity applications: contamination-free fluid retention thanks to oil- and lubricant-free compression
- Wide operating range thanks to motor speed control
- Low vibration levels
Hydrodynamic bearings
Absolut System has a heritage of over 30 years in the design of hydrodynamic bearings. This innovative technology uses shaft rotation to create local fluid overpressure. As a result, the rotor is held in its axis by a thin layer of fluid rotating between the rotor and stator parts of the bearing. This rotor support system offers numerous advantages in terms of economy, autonomy and longevity (>10 years). Absolut System turbomachines are ideal for on-board systems, particularly for space applications or where maintenance is a constraint.
Hydrodynamic bearings
Absolut System has a heritage of over 30 years in the design of hydrodynamic bearings. This innovative technology uses shaft rotation to create local fluid overpressure. As a result, the rotor is held in its axis by a thin layer of fluid rotating between the rotor and stator parts of the bearing. This rotor support system offers numerous advantages in terms of economy, autonomy and longevity (>10 years). Absolut System turbomachines are ideal for on-board systems, particularly for space applications or where maintenance is a constraint.
Radial turbomachines
Turbomachines designed by Absolut System use radial impellers. Driving the fluid in a radial direction increases the energy transferred. Our teams can custom-design impellers to meet your specific compression or expansion requirements.
Our compressors and turbines, using centrifugal or centripetal impellers, have the advantage of being more compact than iso-performance axial turbomachines.
Radial turbomachines
Turbomachines designed by Absolut System use radial impellers. Driving the fluid in a radial direction increases the energy transferred. Our teams can custom-design impellers to meet your specific compression or expansion requirements.
Our compressors and turbines, using centrifugal or centripetal impellers, have the advantage of being more compact than iso-performance axial turbomachines.
Long-life operation
Absolut System turbomachinery uses gas bearings to support the rotors at speeds from 100,000 to 600,000 rpm. The low-mass rotors are the only moving parts in the systems, and because they are precisely balanced, the systems are inherently vibration-free. No vibration-cancelling electronics are required. Gas bearings also enable non-contact operation, so performance degradation resulting from wear or debris build-up is absent. Our systems are generally capable of maintenance-free operation for 5 to 20 years.
Long-life operation
Absolut System turbomachinery uses gas bearings to support the rotors at speeds from 100,000 to 600,000 rpm. The low-mass rotors are the only moving parts in the systems, and because they are precisely balanced, the systems are inherently vibration-free. No vibration-cancelling electronics are required. Gas bearings also enable non-contact operation, so performance degradation resulting from wear or debris build-up is absent. Our systems are generally capable of maintenance-free operation for 5 to 20 years.
Hydrodynamic bearings
Absolut System has a heritage of over 30 years in the design of hydrodynamic bearings. This innovative technology uses shaft rotation to create local fluid overpressure. As a result, the rotor is held in its axis by a thin layer of fluid rotating between the rotor and stator parts of the bearing. This rotor support system offers numerous advantages in terms of economy, autonomy and longevity (>10 years). Absolut System turbomachines are ideal for on-board systems, particularly for space applications or where maintenance is a constraint.
Hydrodynamic bearings
Absolut System has a heritage of over 30 years in the design of hydrodynamic bearings. This innovative technology uses shaft rotation to create local fluid overpressure. As a result, the rotor is held in its axis by a thin layer of fluid rotating between the rotor and stator parts of the bearing. This rotor support system offers numerous advantages in terms of economy, autonomy and longevity (>10 years). Absolut System turbomachines are ideal for on-board systems, particularly for space applications or where maintenance is a constraint.
Radial turbomachines
Turbomachines designed by Absolut System use radial impellers. Driving the fluid in a radial direction increases the energy transferred. Our teams can custom-design impellers to meet your specific compression or expansion requirements.
Our compressors and turbines, using centrifugal or centripetal impellers, have the advantage of being more compact than iso-performance axial turbomachines.
Radial turbomachines
Turbomachines designed by Absolut System use radial impellers. Driving the fluid in a radial direction increases the energy transferred. Our teams can custom-design impellers to meet your specific compression or expansion requirements.
Our compressors and turbines, using centrifugal or centripetal impellers, have the advantage of being more compact than iso-performance axial turbomachines.
Long-life operation
Absolut System turbomachinery uses gas bearings to support the rotors at speeds from 100,000 to 600,000 rpm. The low-mass rotors are the only moving parts in the systems, and because they are precisely balanced, the systems are inherently vibration-free. No vibration-cancelling electronics are required. Gas bearings also enable non-contact operation, so performance degradation resulting from wear or debris build-up is absent. Our systems are generally capable of maintenance-free operation for 5 to 20 years.
Long-life operation
Absolut System turbomachinery uses gas bearings to support the rotors at speeds from 100,000 to 600,000 rpm. The low-mass rotors are the only moving parts in the systems, and because they are precisely balanced, the systems are inherently vibration-free. No vibration-cancelling electronics are required. Gas bearings also enable non-contact operation, so performance degradation resulting from wear or debris build-up is absent. Our systems are generally capable of maintenance-free operation for 5 to 20 years.
Technical datas
Technical datas
Cryogenic circulators
| Products | Technical Leaflets |
|---|---|
| CF100 | Available oon |
| CF200 | |
| CF8000 | Available soon |
| Products | Flow | Flow (L/s) | Speed | Rpm max | Power (W) | Compression rate | Technical Leaflets |
|---|---|---|---|---|---|---|---|
| CF100 | Low flow | 1 à 4 | Fast | 50000 | 108 | 1,01 | Available soon |
| CF200 | Low Flow | 0,03 à 1 | Slow | 18000 | 199 | 1,03 | |
| CF8000 | High Flow | 5 à 124 | Fast | 50000 | 4200 | 1,05 | Available soon |
Liquid pump
| Products | Technical Leaflets |
|---|---|
| LN2 Pump | Available soon |
| Products | Rpm max | Power (W) | Compression rate | Technical Leaflets |
|---|---|---|---|---|
| LN2 Pump | 5250 | 141 | 2,7 | Available soon |
Related Project: Cooling an optical laser with high-purity helium
The entire laser system is being developed in collaboration between the STFC (Science and Technology Facilities Council) and the Hilase Center. Absolut System has developed high-reliability, high-performance cryogenic circulators with hydrodynamic gas bearings, enabling contamination-free movement of cold helium in the optical cryostat.
Related Project: Cooling an optical laser with high-purity helium
The entire laser system is being developed in collaboration between the STFC (Science and Technology Facilities Council) and the Hilase Center. Absolut System has developed high-reliability, high-performance cryogenic circulators with hydrodynamic gas bearings, enabling contamination-free movement of cold helium in the optical cryostat.
Our products
Our products
