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Thermionic energy converter
Posted 07.10.2010, 03:31 GMT-4 0 Replies
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Help a newbie, if you can :)
It’s necessary to calculate U(J) function for thermionic system (see Figure).
What modules of the COMSOL program should I use to make this calculation? Is it necessary for me to use coupled analysis “Heat transfer Module” and “Plasma Module” or only “Plasma Module”? What Plasma Model i should use (DD or HS or DC or CCP...)? Should I enter excitation and ionization reactions of cesium into the “Plasma Model” or entering properties of the material would be enough?
Initial data:
1) Emitter temperature Te = ~1700 K (const)
2) Collector temperature Tc = ~900 K (const)
3) Emitter work function in vacuum = ~5 eV (const)
4) Collector work function in Cs = ~1.5 eV (const)
5) Pcs = ~2 tor
6) Tcs = ~600 K
7) V0 = ~0.4 V
8) d = 0.4 mm
9) r = 7 mm
Thanks!
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Hello Mikhail Polous
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