S.1 Spacecraft Propulsion Systems Chapter 1: Introduction to ...

Recommendations

Info

S.7 Effective Exhaust Velocity F ve = [m/s] o m ve = effective exhaust velocity [m/s] F = thrust force [N] o m = propellant mass flow rate [kg/s] - 10- From its definition as the thrust per unit rate of mass flow of propellant, it follows that ve is numerically the same as the Isp as defined above with SI units of m/s. Note: ve is the ‘effective’ exhaust velocity, - although called ‘thruster exhaust velocity’ hereinafter-, because it is determined by test; therefore, in all propulsion related calculations with ve, the effective exhaust velocity has to be applied, if not stated otherwise.
- 11- S.8 Propulsion System Performance Propulsion System Performance Factor: System-specific Impulse, Issp Another very important quantity is the System-specific Impulse, Issp, which is the total impulse, Itot delivered by the system, divided by the total mass, mPS, of the propulsion system, that is, all of the propulsion system and not only the propellant as for Isp: I I = [Ns/kg] tot ssp mPS Issp = system-specific impulse [Ns/kg] Itot = total impulse delivered by the propulsion system [Ns] mPS = mass of propulsion system [kg] Issp is a very useful tool, but its practical application requires a very clear definition of what is included in “total mass of propulsion system”. Details of how the Issp is determined for each kind of propulsion system are dealt with in the ‘Issp Program’ in chapter 4.
Page 1 and 2: - 1- Chapter 1: Introduction to Spa
Page 3 and 4: S.3 Need of Propulsion Propulsion i
Page 5 and 6: Orbit control ORBIT CONTROL compris
Page 7 and 8: S.4 Reaction-Control System - 7- Th
Page 9 and 10: Solar Sails - 9-
Page 11 and 12: S.5 Jet Propulsion System - 11- The
Page 13 and 14: S.6 Spacecraft Propulsion - 13- Spa
Page 15 and 16: Impulse bits - 15- Impulse bit is t
Page 17 and 18: Nuclear propulsion Note - 17- SCHEM
Page 19 and 20: - 1- Chapter 2: Basic Propulsion Eq
Page 21 and 22: S.3 Basic Equation of Thrust - 3- B
Page 23 and 24: S.4 Basic Rocket Equation Total Vel
Page 25 and 26: - 7- S.6 Propulsion Performance Fac
Page 27: Test - 9-
Page 31 and 32: - 13- S.9 Type of Propulsion System
Page 33 and 34: Rocket propulsion device basic part
Page 35 and 36: - 17- The Effective Exhaust Velocit
Page 37 and 38: Kinetic energy in the expelled mass
Page 39 and 40: - 1- Chapter 3: Spacecraft Propulsi
Page 41 and 42: - 3- S.3 Propulsion System Options
Page 43 and 44: Chemical Propulsion Systems - 5- Ch
Page 45 and 46: S.4 Cold and Hot Gas Systems - 7- C
Page 47 and 48: Cold Gas Systems (Operate) - 9- Col
Page 49 and 50: Typical System - 11-
Page 51 and 52: - 13-
Page 53 and 54: Advantages Simplicity and reliabili
Page 55 and 56: Liquid Propellants - 17- Characteri
Page 57 and 58: S.6 Liquid Propellant Systems - 19-
Page 59 and 60: Monopropellant Systems (Operate) -
Page 61 and 62: - 23-
Page 63 and 64: - 25-
Page 65 and 66: Diaphragm Tank - 27-
Page 67 and 68: Advantages Simplicity and reliabili
Page 69 and 70: Bipropellant Systems (Operate) - 31
Page 71 and 72: - 33-
Page 73 and 74: - 35-
Page 75 and 76: Propellant Tanks - 37-
Page 77 and 78: Unified Propulsion Systems - 39-
Page 79 and 80:
- 41-
Page 81 and 82:
- 43- Main Performance of Bipropell
Page 83 and 84:
- 45- Dual-Mode systems use hydrazi
Page 85 and 86:
Under Development: - 47- A new fami
Page 87 and 88:
Solid Propellant Motor - 49-
Page 89 and 90:
- 51- Main Performance of Solid Pro
Page 91 and 92:
Electric Propulsion Systems - 53- E
Page 93 and 94:
Note: - 55- For electric propulsion
Page 95 and 96:
Power Augmented Catalytic Thruster
Page 97 and 98:
Electrostatic Systems - 59- Electro
Page 99 and 100:
- 61- Survey of Electrical Thruster
Page 101 and 102:
S.9 Summary - 63- Main characterist
Page 103 and 104:
Chapter 4: Spacecraft Propulsion Sy
Page 105 and 106:
- 3 - S.3 Propulsion System Selecti
Page 107 and 108:
Important indication - 5 - If we as
Page 109 and 110:
S.4 Outline of Advanced Spacecraft
Page 111 and 112:
Exploration of the Solar System - 9
Page 113 and 114:
- 11 - For micro- and nanospacecraf
Page 115 and 116:
wafer 4 wafer 3 wafer 2 wafer 1 Sev
Page 117 and 118:
- 15 - Potential increase in perfor
Page 119 and 120:
- 17 - New Approaches in Advanced P
Page 121 and 122:
- 19 - New Approaches in Advanced P
Page 123 and 124:
- 21 - Exotic Propulsion Methods: A
Page 125:
Literature - 23 - Wiley J. Larsson
show all

S.1 Spacecraft Propulsion Systems Chapter 1: Introduction to ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?