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Ion engine efficiencies
What efficiency in converting elctrical power input into exhaust jet
power can be had out of ion engines? I'm finding little info on this. |
#2
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Ion engine efficiencies
On 5 Aug 2003 12:45:12 -0700, in a place far, far away,
(Scott Lowther) made the phosphor on my monitor glow in such a way as to indicate that: What efficiency in converting elctrical power input into exhaust jet power can be had out of ion engines? I'm finding little info on this. I don't know, but I would imagine it's very high. How precisely do you need to know? -- simberg.interglobal.org * 310 372-7963 (CA) 307 739-1296 (Jackson Hole) interglobal space lines * 307 733-1715 (Fax) http://www.interglobal.org "Extraordinary launch vehicles require extraordinary markets..." Swap the first . and @ and throw out the ".trash" to email me. Here's my email address for autospammers: |
#3
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Ion engine efficiencies
Scott Lowther wrote:
What efficiency in converting elctrical power input into exhaust jet power can be had out of ion engines? I'm finding little info on this. There's some data in Sutton on this. They are typically around 50%. Note that this is much different to the question of how much kinetic energy ends up in the vehicle. Most of the energy in ion drives ends up in the exhaust. |
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Ion engine efficiencies
On Tue, 05 Aug 2003 22:03:16 +0100, in a place far, far away, Ian
Woollard made the phosphor on my monitor glow in such a way as to indicate that: Scott Lowther wrote: What efficiency in converting elctrical power input into exhaust jet power can be had out of ion engines? I'm finding little info on this. There's some data in Sutton on this. They are typically around 50%. Why so poor? Where does the rest of it go--heat in the cabling, or hysteresis losses? -- simberg.interglobal.org * 310 372-7963 (CA) 307 739-1296 (Jackson Hole) interglobal space lines * 307 733-1715 (Fax) http://www.interglobal.org "Extraordinary launch vehicles require extraordinary markets..." Swap the first . and @ and throw out the ".trash" to email me. Here's my email address for autospammers: |
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Ion engine efficiencies
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#7
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Ion engine efficiencies
Rand Simberg wrote: On 5 Aug 2003 12:45:12 -0700, in a place far, far away, (Scott Lowther) made the phosphor on my monitor glow in such a way as to indicate that: What efficiency in converting elctrical power input into exhaust jet power can be had out of ion engines? I'm finding little info on this. I don't know, but I would imagine it's very high. How precisely do you need to know? I am not so sure that is true, although I admit to not knowing the answer to the the question. I would suspect it is lower than 50%. I throw that number up because someone who really knows will have a good laugh and perhaps provide some real data. Mike Walsh |
#8
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Ion engine efficiencies
Ian Woollard wrote: Scott Lowther wrote: What efficiency in converting elctrical power input into exhaust jet power can be had out of ion engines? I'm finding little info on this. There's some data in Sutton on this. They are typically around 50%. Note that this is much different to the question of how much kinetic energy ends up in the vehicle. Most of the energy in ion drives ends up in the exhaust. And I guessed 50% without knowing. Of course, when in doubt go down the middle. Mike Walsh |
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