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Raketový Motor
• 10. a 11. Stol. - Čína - zápalné střely v boji (malá vrtule + střelný prach)
• rakety na tekuté palivo
• výpočty Konstatin Ciolkovskij
• 1926 Robert Goddard (na benzin a kyslík, do 12m)
• rozvoj za 2. sv. Války (ing. Wernher von Braun - později v USA)
• Sergej Koroljov (Rusko)
• 1944 raketové letadlo Me 163 Komet (HWK 109 – 800km/h)
H
Raketový Motor
Historie
• účinnost až 50%
• teplota až 3000°C
• náplň – vodík nebo hydrazin
• funguje i ve vakuu (v kosmu) – nese si kyslík s sebou
• při startu – vodní pára (nikoliv kouř), kvůli chlazení kk
H H
Raketový Motor
Motor
Raketový Motor
• dvě nádrže
o okysličovadlo (=kyslík)
o tekuté palivo (=vodík)
• nádrže - z hliníku a lithia, několik vrstev
o extrémní nápor při průchodu atmosférou
o vibrace
• vodík (H2)
o lehké molekuly a velká výhřevnost
o netoxický
o problém - zabírá moc místa při normální teplotě (v plynném stavu)
→ musí být zkapalněný
H
Palivo
Raketoplány s sebou většinou nosí externí nádrže
s až 500 000 l H2 a 1 500 000 l O2
H
Jak motor funguje?
Raketový Motor
Raketový Motor
Jak motor funguje?
prostor pro
nádrže
spalovací
komora
turbína
tryska
Využití
Raketový Motor
Využití v raketách i raketoplánech
Zdroje
Raketový Motor
• https://www.youtube.com/watch?v=3isXaIQ3Lkk
• https://www.youtube.com/watch?v=3isXaIQ3Lkk
• http://www.hvezdarna-vsetin.cz/pages/view1dd8.php
• https://en.wikipedia.org/wiki/Rocket_engine
• Učebnice fyziky
Děkujeme za pozornost
Raketový Motor

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Raketový motor.pptx

  • 2. • 10. a 11. Stol. - Čína - zápalné střely v boji (malá vrtule + střelný prach) • rakety na tekuté palivo • výpočty Konstatin Ciolkovskij • 1926 Robert Goddard (na benzin a kyslík, do 12m) • rozvoj za 2. sv. Války (ing. Wernher von Braun - později v USA) • Sergej Koroljov (Rusko) • 1944 raketové letadlo Me 163 Komet (HWK 109 – 800km/h) H Raketový Motor Historie
  • 3. • účinnost až 50% • teplota až 3000°C • náplň – vodík nebo hydrazin • funguje i ve vakuu (v kosmu) – nese si kyslík s sebou • při startu – vodní pára (nikoliv kouř), kvůli chlazení kk H H Raketový Motor Motor
  • 4. Raketový Motor • dvě nádrže o okysličovadlo (=kyslík) o tekuté palivo (=vodík) • nádrže - z hliníku a lithia, několik vrstev o extrémní nápor při průchodu atmosférou o vibrace • vodík (H2) o lehké molekuly a velká výhřevnost o netoxický o problém - zabírá moc místa při normální teplotě (v plynném stavu) → musí být zkapalněný H Palivo Raketoplány s sebou většinou nosí externí nádrže s až 500 000 l H2 a 1 500 000 l O2
  • 6. Raketový Motor Jak motor funguje? prostor pro nádrže spalovací komora turbína tryska
  • 7. Využití Raketový Motor Využití v raketách i raketoplánech
  • 8. Zdroje Raketový Motor • https://www.youtube.com/watch?v=3isXaIQ3Lkk • https://www.youtube.com/watch?v=3isXaIQ3Lkk • http://www.hvezdarna-vsetin.cz/pages/view1dd8.php • https://en.wikipedia.org/wiki/Rocket_engine • Učebnice fyziky