Design of propulsion and electric power generation systems pdf

What is a power source propulsion system?

A power source in an electric propulsion system is any combination of electrical power-producing devices (i.e., electric generator, fuel cell, etc.) and/or energy storage devices (i.e., battery, capacitor, etc.). The propulsion system where these power sources are connected to multiple electric motor-driven components via transmission lines.

What is propulsion power?

Propulsion power is thepower needed to give a ship a translating motion. This power is an example of mechanicalenergy per unit time. The generation of this mechanical energy, provided for instance by adiesel engine, requires electric power for auxiliary systems such as the fuel system and thecooling water system.

What is the combination of propulsion system and electric power plant?

Therefore, the combination of the propulsion system and the electricpower plant is referred to as power plant. The power plant concepts can roughly be divided into two types:m mechanical conceptsm electrical concepts.

Who invented electric propulsion?

Concept has been discovered by pioneers: Tsiolkovski, Goddard, Oberth. Electric propulsion systems require large power source which limits their use. Commonly used in applications requiring very high Isp’s, but low thrust densities. Note that the effect of the exit pressure on the thrust force has been neglected.

What is the difference between electric propulsion and chemical propulsion?

Chemical systems are capable of delivering very high thrust forces, but the energy storage capability in the chemical bonds limits the maximum exhaust velocity, thus the Isp. Concept has been discovered by pioneers: Tsiolkovski, Goddard, Oberth. Electric propulsion systems require large power source which limits their use.

Do electric propulsion systems need a large power source?

Electric propulsion systems require large power source which limits their use. Commonly used in applications requiring very high Isp’s, but low thrust densities. Note that the effect of the exit pressure on the thrust force has been neglected. This is accurate for most systems, but not all types including MPD, resistojets of the heat exchanger.