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The future is electric Innovation 2 Go Webinar 25th June 2020

SUPREME: NEXT GENERATION OF PLASMA THRUSTERS FOR SPACE MISSIONS

Manuel La Rosa Betancourt Co-Founder & CEO

Marcus Collier-Wright Co-Founder & CTO

24/6/2020 2 OUTLINE

Company Background

Applied-Field Magnetoplasmadynamic Thrusters

High Temperature Superconductors

SUPREME Technology

Vison and Business Case

Roadmap and Traction

24/6/2020 Neutron Star Systems 3 WHO WE ARE

Business Innovation Heritage THE FUTURE IS ELECTRIC

• Disruptive Electric Propulsion • High Temperature Superconductors • High Power Space Missions Leadership in High-power Electric Propulsion

24/6/2020 Neutron Star Systems 4 Background

24/6/2020 Neutron star systems 5 TEAM

MANUEL MARCUS GEORG DAVID CEO CTO MPD Technology Expert Head Of Engineering

RYAN ORLANDO NANTWIN EUDYS Communications, HR & IT Services & PMO Systems Engineer Administrative Support Marketing 24/6/2020 Neutron Star Systems 6 Chemical vs electric propulsion

CHEMICAL PROPULSION ELECTRIC PROPULSION

Payload: Payload: 3 tonnes 5 tonnes

Total spacecraft mass: 6 tonnes

Propellant: Propellant: 3 tonnes 1 tonne

24/6/2020 Neutron Star Systems 7 Comparison of Propulsion technologies

CHEMICAL ELECTROSTATIC ELECTROMAGNETIC

Propellant is combusted Propellant gas is ionized, Propellant gas is ionized, and accelerated to ions are accelerated to plasma is accelerated to produce thrust. produce thrust. produce thrust.

Simple Operation High High Specific Impulse Propellant Flexibility High Thrust Efficiency Throttleable Flight Heritage Flight Heritage Propellant Flexibility

Low Specific Impulse Complicated Operation Limited by conventional technologies Complicated Propellant Reliance on Xenon Control Poor Scalability Little Flight Heritage

[7]

24/6/2020 Neutron Star Systems 8 Applied Field magnetoplasmadynamic Thruster

IC

m a jr x Bθ B Bz θ jr j r jr x Bz mc CATHODE j x B _ θ z V jθ D INSULATOR B + ANODE z

ID

24/6/2020 Neutron Star Systems 9 60 years of MPD heritage

NASA/McDonnell Superconducting MPD 1972

24/6/2020 Neutron Star Systems 10 100kW AF-MPD prototype: sx3 Thruster (iRS Stuttgart)

Mass of only 13kg! … But the electromagnet weighs 150kg and consumes 285kW

Source: IEPC 2017-339 24/6/2020 Neutron Star Systems 11 SX3 thruster – impact of magnetic field strength

• Steady Operation • Efficiency up to 62% • Thrust up to 3,6 N

Typical Operating Conditions Normal Mode Magnetic Field: 100 mT 400 mT Power: 75 kW 100 kW Current: 750 A 440 A Voltage: 100 V 230 V Mass Flow Rate: 90 mg/s 60 mg/s Thrust: 2.1 N 2.75 N

ISP: 2400 s 4665 s Efficiency: 33% 62% High Voltage Mode Source: IEPC 2017-339 24/6/2020 Neutron Star Systems 12 High temperature Superconductors (HTS)

TYPE 2G HTS (pressure)

Hg-Ba-Ca-Cu-O

TI-Ba-Ca-Cu-O

Bi-Sr-Ca-Cu-O (pressure) Y-Ba-Cu-O

Liquid N2

(pressure) La-Sr-Cu-O

Nb-Al-Ge Nb3Ge La-Ba-Cu-O V3Sj Liquid H2 NbN NbC Pb Nb Nb3Sn Hg

[n] Thomas Frey, M. Kleber, H. Kinder, R. Gross Oxidation behavior of RE123 superconductors with time and place resolution. Published on August 2004 at the Technical University of Munich submitted and accepted by the Faculty of Physics on January 2005

24/6/2020 Neutron Star Systems 13 HTS Production TAPE ARCHITECTURE

Cost efficient production

Vacuum chamber Continuous vacuum Robust process Tape locking allowing high yield

Modular

Physical vapor deposition With electron beam evaporation Implementation of industrial standards

Pay-off Proof of production: (back side) high quality tape Roll-on with in-line quality control

© Copyright THEVA Dünnschichttechnik GmbH

24/6/2020 Neutron Star Systems 14 HTS – space applications

7 Electromagnetic 10 Shielding YBaCuO Thin Film

6 10 MRI BiSrCaCuO Tape Engine Magnets Bearings 105 SMES

) Bismuth Wire SSC Magnets 2 104 Small Payload Electromagnetic

(A/cm Thalium 103 Launch Long Wire Motor Generators (50K) 102 Cryocooler Current Leads DC Space CRITICAL CURRENT DENSITY 10 Power Transmission Lines 1

0 10-3 10-2 10-1 1 10 102 MAGNETIC FIELD (T)

[n] Denis J. Connolly, Robert R. Romanofsky, Paul Aron and Mark Stan, OPPORTUNITIES FOR SUPERCONDUCTIVITY IN FUTURE SPACE EXPLORATION PROGRAMS: (A HYDROGEN ECONOMY FOR THE 21ST CENTURY) NASA, Lewis Research Center Cleveland, Ohio 44135

24/6/2020 Neutron Star Systems 15 Supreme technology PROPELLANT SUPPLY

POWER PROCESSING UNIT

DISCHARGE UNIT

APPLIED-FIELD MODULE

THERMAL MANAGEMENT

Magnet Mass: 4x Reduction

Magnet Power Consumption: 300x Reduction

Magnetic Field Strength: 4x Increase

24/6/2020 Neutron Star Systems 16 Supreme technology PROPELLANT SUPPLY

POWER PROCESSING UNIT

DISCHARGE UNIT

APPLIED-FIELD MODULE

THERMAL MANAGEMENT

Technical Parameters: Power: 750W – 1MW

Isp: 2000-8000s Thrust Efficiency: 50-75% Thrust Density: 10-70 mN/kW

24/6/2020 Neutron Star Systems 17 Subsystem requirements High Temperature Resistance Quench Protection Critical Temperature Electrical of 50K Conductivity

Low Work Anode HTS Coil Function 1.5 T Magnetic Field Strength Flux Pump Sputtering Resistance Insulate HTS coils Current (~50K) from plasma Leads discharge (~2000K) 40W Heat Removal at 50K MLI Reverse Turbo- Brayton Cycle

Thermal Management Cryogenic System Aerogels Power Draw High Temperature <800W Low Resistance Vibrations

24/6/2020 Neutron Star Systems 18 SUPREME PERFORMANCE HIGHER ISP

GRIDDED ION THRUSTERS SUPREME

LOWER THRUST HIGHER THRUST

HALL EFFECT THRUSTERS

LOWER ISP

24/6/2020 Neutron Star Systems 19 Competing companies

VASIMR SUPREME

AD ASTRA ROCKET USA 50 – 200 kW NEUTRON STAR SYSTEMS GERMANY 1 – 1000 kW

GRIDDED ION HALL EFFECT THRUSTERS THRUSTERS

AEROJET ROCKETDYNE USA 0.5 – 200 kW USA 0.5-7.5 kW BUSEK USA 0.1 – 20 kW L3HARRIS USA 0.45-4.5kW FAKEL RUSSIA 0.3 – 25 kW ARIANE GROUP GERMANY 0.5-8.5 kW SAFRAN GROUP FRANCE 0.5 – 20 kW QINETIQ UK 0.5-7.5 kW SITAEL ITALY 0.5 – 20 kW

24/6/2020 Neutron Star Systems 20 Competitive advantages

PROPELLANT HERITAGE FLEXIBILITY THROTTLEABILITY

SIMPLE AND SCALABILITY ROBUST

24/6/2020 21 100% 70% Ar Argon Kr Krypton SUPREME OPERATING RANGE 50% 30% NH3 Ammonia CH Methane 640 4 AF-MPD SF-MPDs H2 Hydrogen

HET - EU HET – Int.

HET - LowTRL GIT 320

HET 160 Mission Scenarios Requirements Station Keeping SUPREME Orbit Raising

80 Deep Space Missions Thrust per Power in mN/kWPower per Thrust 40 Ar, Kr

20 NH3, CH4

GIT H2 10 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

Specific Impulse in s Our Vision

Small satellites & GEO Satellite Constellations Platforms

Satellite Debris Removal & Maintenance Decommissioning

Refuelling Orbit Raising

24/6/2020 Neutron Star Systems 23 Our Vision Mars Asteroid Gateway Mining Lunar Gateway Logistics Lunar Cargo

Mars Cargo Lunar Servicing Science Crewed Exploration Mars Missions Missions

24/6/2020 Neutron Star Systems 24 opportunity Potential Annual Revenues - Neutron Star Systems (€ millions) 600

500

400

300

200

100

0 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 Small Satellites GEO Satellites Science Missions Satellite Servicing Lunar Gateway Logistics Lunar Cargo (10t+) Lunar Cargo XL (30t+) Asteroid Mining Mars Cargo (50t+) Mars Cargo XL (100t+) Mars Crewed Business case €320 Million €90 Million High €30 Million

Mars Cargo €20 Million Moon Cargo 100 – 1000 kW 160 – 600 kW

creation €10 Million Smallsat Constellation 1 kW

Value DLR Jupiter Moons 60 kW GEO Communications Potential mission cost Satellite savings when using 15 – 35 kW SUPREME Low 10 20 30 90 320 Value capturing € MILLION

24/6/2020 Neutron Star Systems 26 Business model

Lunar Missions 50kW – 600kW

IPR Licensing Space Deep and Mars 100kW 100kW

Cyber-Physical Platform

Based

-

Based Based EP

50kW

- 2500 2500 kW

– Develop

SUPREME

Subsystems 1kW 1kW

Earth ApplicationsEarth Technology and -

Secure IPR

Superconductor

Spacecraft Spacecraft Subsystems

Superconductor Near

24/6/2020 Neutron Star Systems 27 Initial Product line

20 kW Class * Extended GEO satellites * Advanced science 5 kW Class missions * Proof of concept * Satellite Servicing demonstrator 1 kW Class * Industry Standard * Uses permanent magnets * GEO Satellite platforms * Smallsats and Constellations * Hybrid propulsion systems

24/6/2020 Neutron Star Systems 28 Company Structure NSS Germany

Company HQ

Centre of competence for Discharge Unit, Thermal Management and Propellant Control

Subsystem assembly and integration

Thruster testing & verification NSS UK Ltd. NSS Luxembourg Centre of competence for Centre of competence for Superconducting Coils, plasma simulation Cryogenics, and Power Electronics

24/6/2020 Neutron Star Systems 29 SUPREME Technology Roadmap

1965 2019 2020 2023 2025 2030 2035 2040

Large heritage in COMMERCIALISATION Business plan and developing HTS tapes and feasibility assessment Smallsats & Constellations coils Next-Generation GEO Satellites Large heritage in In-Orbit ACCELERATOR Satellite Servicing developing high-current PROGRAM Demo hollow cathodes (5kW) Lunar & Mars cargo Large heritage in Mars crewed developing MPD thruster Engineering Model technology Industrial upscaling and market preparation TRL 1-4 TRL 4-6 TRL 7 -8 TRL 8-9

24/6/2020 Neutron Star Systems 30 Traction -ACTIVITIES

Horizon 2020 FET-OPEN WINNER MEESST Project RUNNER-UP Audience Choice Award Start-Up Space Competition Austin, Texas, USA €3.4 million Washington D.C., USA

Top 50 ESA FINALIST Top 3 – FINALIST Autumn 2020 OHB Challenge, Innospace Masters Startups 2020 Luxembourg 24/6/2020 Neutron Star Systems 31 Traction - PARTNERS

“The 20kW SUPREME model would be very suitable for use as a primary thruster on a 35kW-class GEO Satellite.”

“SUPREME can take advantage of PPU technology transfer from existing systems.”

“ESA has previously funded MPD technology through grants and programs. We are happy to support any activity on MPDs.”

“If MPD’s are achieving efficiencies over 50%, then this completely changes the question for high power space propulsion.”

“This technology can offer a unique and competitive proposition for hybrid electric/chemical propulsion systems.” “We are especially interested in the potential of SUPREME technology for its application in high power electric propulsion systems”

24/6/2020 Neutron Star Systems 32 Manuel La Rosa Betancourt Co-Founder & CEO [email protected] +49 171 5231978

Marcus Collier-Wright Co-Founder & CTO [email protected] +44 777 0 742 417

Artificial intelligence

Manufacturing Numerical Codes Processes Thruster Power Classes Orbit Situational Accelerated Plasma Response Smart Development Simulation Tools Operations & Qualification Adaptive Materials Code Logic Thruster Parameter Control

24/6/2020 Neutron Star Systems 35 Institut für Raumfahrtsysteme

AF-MPD Test Stand: Tank 8

Teststand for AF-MPD Thrusters: Thrust Balance:

Thrust Balance (Thrust Measurement): ▪ Parallelogram Balance ▪ Force Sensor and Calibration Unit Vacuum Tank 8: ▪ Thermocouples (Thruster) ▪ Pressure Measurements ▪ Thermometer (Balance, Coil) ▪ Cold Water and Power Supply Non-intrusive Diagnostics: ▪ Pyrometer ▪ Fabry-Pérot Interferometer ▪ Spectrometer

24/06/2020 Copyright: Institute of Space Systems, University of Stuttgart 36