e-boosters, turbine generators, and turbocharger technology

e-boosters, turbine generators, and turbocharger technology

About Aeristech High-performance electric machines Electric/aero integration and optimisation Power electronics design and prototyping Rotordynamics and damping systems Thermal management in turbine generator Turbomachine testing

Aeristech s Core Technology Unique control architecture and machine High efficiency (reduced switching losses) More than 100 kw per kg of magnet material (based on typical Neodymium) Capable of high power (1-50 kw)

Aeristech s Core Technology 2.8 Unique control architecture and machine High efficiency (reduced switching losses) More than 100 kw per kg of magnet material (based on typical Neodymium) Capable of high power (1-50 kw) Capable of high voltage (>12V) cost 12V 120V power

Aeristech e-booster Boost 2.1bar 14kw Shaft Power Speed 120krpm Aerodynamic, ŋ = 76% Inverter to Shaft Power efficiency of 76 88%

Compressor Test Rig Details Mass flow is measured using a pre-calibrated bell-mouth flow meter Measured inlet and outlet absolute pressures and temperatures used to map corrected mass flow and efficiency in line with published data. Standard-SAE J1723 (Non-Positive Displacement Supercharger) was used as a guideline in the test rig construction.

Inlet Section

Outlet Section

Test Procedure The AM3 Supercharger is mounted to the Cold Air Test Rig. Water cooling used to remove heat from the stator and bearings. Filtered oil-mist lubrication supply is attached to each bearing cap. Data acquisition from the air path is provided by a single unit recording temperature, pressure, and mass air flow. Coolant supplies are monitored by a second DAQ unit and rotor-dynamics DAQ 3 Methodology: 1. Ambient temperature and pressure recorded. 2. Shaft speed (supercharger speed) set by the control system 3. The mass flow rate is set by adjusting the valve. 4. Results ensured to converge to meet the steady state standard stabilisation criteria. 5. Converged temperature and absolute pressure readings taken at the suction and discharge sections. 6. The valve position (mass flow) is readjusted whilst keeping the shaft speed constant and more data sets are recorded as required. 7. Reset the speed and the data recording process is repeated.

Speed Range (krpm) Boost (bar) Time (s) 60-100 0.51 0.38 e-booster Acceleration (1)

Data Set Speed Range (krpm) Boost (bar) Time (s) 1 75-115 0.62 0.50 2 90-115 0.43 0.40 3 75-115 0.65 0.60 e-booster Acceleration (2)

Data Set Speed Range (krpm) Boost (bar) Time (s) 1 50-80 0.30 0.45 2 50-95 0.51 0.40 3 75-100 0.35 0.45 e-booster Acceleration (3)

Compressor Test Rig

Turbine Test Rig

Control Architecture Controller Motor

Control Architecture Controller Motor Conventional Motor 360 000 switches per second 3000 Hz 180 000 RPM

Control Architecture Controller Motor Conventional Motor 360 000 switches per second 3000 Hz 180 000 RPM Aeristech Motor 38 000 switches per second 6 000 Hz 180 000 RPM

Control Architecture Controller Motor Conventional Motor 360 000 switches per second 3000 Hz 180 000 RPM Aeristech Motor 38 000 switches per second 6 000 Hz 180 000 RPM Generally, Loss = (Amps) * (Switches per second) * k

Aeristech scosts Compared to Conventional Control Cost Driver Magnets Stator material IGBT substrate material Sensitivity Less Sensitive Aeristechmakes better use of magnet material Equal Aeristechuses less stator material but is more sensitive to its quality Less Sensitive Aeristechuses fewer switching events, so requires less footprint

Fully decoupled architecture Compressor(s) optimised for surge Turbine(s) optimised for efficiency Simpler packaging and pipework Fewer losses in pipes and valves Greater control of EGR Lower cost than a multi-stage turbo

Aeristechis a technology licensing company to work with OEs and Tier-1s Aeristechhave the capability to build prototypes for customer evaluation specific and optimised to their requirements Aeristech sindependence allows us to work with any nominated manufacturing partner Aeristechdevelop bespoke system solutions for arduous motorsport applications Aeristechmaximises standard materials and manufacturing processes, for volume production

Thank You Bryn Richards Chief Executive Officer Mobile: +44 7906 517686 Email: bryn.richards@aeristech.co.uk Unit G Princes Drive Industrial Estate Coventry Road Kenilworth Warwickshire CV8 2FD United Kingdom Telephone: +44 1926 258422 Email: info@aeristech.co.uk Web: www.aeristech.co.uk