Development of Environmental-Friendly Solid Propellants for …€¦ · UNSAM, Av. 25 de Mayo 1021,...
Transcript of Development of Environmental-Friendly Solid Propellants for …€¦ · UNSAM, Av. 25 de Mayo 1021,...
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Development of Environmental-Friendly Solid Propellants for Laser Ablation
Propulsion
Carlos Rinaldi, Norberto G. Boggio, Juan Vorobioff, M. Laura Azcárate and Cinthya Toro
Fundación Argentina de Nanotecnología,
UNSAM, Av. 25 de Mayo 1021, (1650) SanMartín, Buenos Aires, Argentina
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Space exploration may have given us wonderful pictures......
These photos of Unknown Authors are licensed by CC BY-SA.
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If the rockets that get us to orbit are based on conventional, toxic propellants...
These photos of Unknown Authors are licensed by CC BY-SA.
Annual scientific assessment of the destruction of the ozone layer by the United Nations Environment Program (UNEP) and the World Health Organization.
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Satellite propulsion
Aerodynamic drag
Useful life
Space debris
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Why is this happening? We always think, first, of solving the problem in any way and with anything?
Satellite PropulsionMethod: Laser Ablation
Requirements : Cm, Isp, Laser Power, Efficiency
Materials: Al , C
Useful but dangerous and environmentally
polluting results
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If we think in the environment when we try to solve the problem, then we can find an environmentally friendly solution.
We propose the following procedure to develop solid propellants for laser propulsion that are eco-friendly.
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But before we look at the method of preparing the propellants, let's explain what laser propulsion is.
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Laser Propulsion
• History
• Laser Propulsion
• Measurement• Propulsion Experiments
• Use in Satellites
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History
Arthur Kantrowitz of Avco Everett Research Laboratory in 1972.
Focusing a high-powered laser beam could replace chemical propulsion
In the last 15 years laser technology has had a great development.
Ultra high-power laser systems that find application in the propulsion
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History In October 2000, Leik Myrabo of the Rensselaer
Polytechnic Institute and scientists from the United States Air Force and NASA
They used a 10-kW pulsed infrared laser in the White Sands Missile Range to power a 12.2 cm diameter, 50 g mass spacecraft to a height of 71 m.
The development of ultra short pulse lasers is very promising for the design of laser propulsion systems.
Specific pulse, energy conversion efficiency and mass-power ratio
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Laser Propulsion
• Propulsion mechanisms:
• Gas - Solid
– Pulsed Laser
– Continuous Laser
• Gas
– Pulsed Laser
– Continuous Laser
• Fmto Laser Channels
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Laser Propulsion
• Mechanism
Direct Ablation (Gas-Solid)
-Electron emission
-Ion Acceleration (Coulombic Explosion)
-Evaporation by a phase explosion
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Velocity of Emitted Particles M and M+ (Mg, Ca and Ba)
0
1
4
1
2
32
(a)
Ba0
1
(b)
Ba+1
0
1
Norm
aliz
ed Inte
nsity
Mg0
Mg+1
0 2 4 6 8
0
1
Time / s
Ca0
0 2 4 6 8
Time / s
Ca+1
2
0
1
exp
3 Af
p
i
Iván Cabanillas-Vidosa, Carlos A. Rinaldi, Juan C. FerreroJournal Applied Physics , 102, 013111, 2007
Vmax: 0,10 km/s
Vmax: 25 km/s
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Laser Propulsion
• Mechanism
– Plasma sustained (Gas)
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Measurements
• Coupling coefficient: Cm
Pulsed laser: Energy per pulse (E)Continuous laser: Power (P)
X0
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Measurements
• Coupling coefficient: Cm
X0
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Measurements
• Torsion Pendulum Image Analysis was performed
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Measurements
• Torsion Pendulum
220
2
202
2
)()(
)0(
0)0(
02
tetsent
tdt
d
t
dt
d
dt
d
EE
v rmmCm
2
0 5 10 15 20 25 30 35 40
-200
-150
-100
-50
0
50
100
150
200
Experimental
Amortiguado
Án
gu
lo [g
rad
os]
Tiempo [seg]
AFA 2008, DANIEL RODRIGUEZ, NORBERTO G. BOGGIO, ALBERTO LAMAGNA, ALFREDO BOSELLI, CARLOS RINALDI, OSVALDO VILAR,JORGE CODNIA, M. LAURA AZCÁRATE 2,4
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Measurements• Specific Impulse: Isp
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Measurements
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Measurements
• Propellant target : Cmpreparation
• Mixture of CaCO3 in Zn as
matrix (0 , 50, 90 and 100 %)• Zn metal powder (Mallinckrodt,
99.99%), CaCO3 (Aldrichpowder 99.99%)
• 10 mm diameter pellets in hydraulic press (2 stages)
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MeasurementsPropellant target : Isp
• Mixture of CaCO3 in Zn as matrix (0 , 50, 90 and 100 %)
• Zn metal powder(Mallinckrodt, 99.99%), CaCO3 (Aldrich powder99.99%)
• 10 mm diameter pellets in hydraulic press (2 stages)
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Measurements
• Thermodynamic properties
10 20 30 40 50
10
100
1000
10000
100000
MJ
Fluencia, / (J.cm-2)
() Ed = 0.01 J.cm-3
()Ed =0.1 J.cm-3
()Ed =10 J.cm-3
()Ed = 30 J.cm-3
C. A. Rinaldi y J.C. Ferrero Actas del XXV Congreso Argentino de Química, S4 Fisicoquímica, 0642, 2004.
Melting point: CaCO3: 1330 °CH: 200 kJ/mol
Melting Point:Zn : Zn : 419 °CBoiling point: Zn : 907 °C
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Measurements• Mixture Ni/NaF
• Ni : • Mp: 1455 °C
• Bp: 2913 °C
• Hatom: 431 kJ/mol
• NaF:• Mp: 993 °C
• Bp: 1700 °C
• E Ret: 923 kJ/mol
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Measurements
1 10 100
1
10
100
1000
Electrica
Fotoacustica
Inte
nsid
ad
/ (
u.a
)
Energìa / mJ
1 10 100
10
100
1000
Electrica
Fotoacustica
Inte
nsid
ad
/(u
.a)
Energìa / mJ
1 10 100
10
100
1000
Electrica
Fotoacustica
Inte
nsid
ad
/(u
.a)
Energía /mJ
Ni : Sc: 4.02Eo: 38.5
NaF : Sc: 2.0Eo: 18
NaF/Ni (70%) : Sc: 3.3Eo: 24
2
1
AAA
M 21J Sc
c
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Procedure
SatellitePropulsion
Method: Laser Ablation
Requirements : Cm, Isp, Laser Power, Efficiency
Materials: Zn / CaCO3
Useful and Environmental-
Friendly
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Procedure Proposed
• Thermodynamics of mixtures of possible materials
• Preparation of possible propellants.
• Measurement of properties and Figures of merit
• Materials selection environmentally friendly
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MEMs for Satellites
• Applications
K.L. Zhang et al. / Sensors and Actuators A 122 (2005) 113–123
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MEMs for Satellites
• Applications
C. Rossi et al. / Sensors and Actuators A 99 (2002) 125–133
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Laser Propulsion Satellite
• The idea of application
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An the winner of Tango’s School was….
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Thanks for your attention
Acknowledgement