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/tech/ - Technology

"Technology reveals the active relation of man to nature"
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File: 1628429077559-0.jpg (43.27 KB, 1000x631, nuclear spacetug1.jpg)

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 No.10628

Russia is building a new spaceship they call Zeus, it's made by Roscosmos and it's a nuclear powered space tug.
It uses a regular chemical first-stage booster for going to orbit, but once in space they say it will be very fast and out run anything using chemical thrusters. Apparently Russia never stopped working on space reactors, and they do seem to be on track for meeting their timeline to get this thing operational in 2030. It's apparently meant to out-compete Spacex starship in interplanetary travel in speed and cost. It's not a direct nuclear propulsion it's a nuclear reactor powering a plasma thruster, so it's less hardcore than direct nuclear propulsion like an Orion-drive but it's also more realistic that it will actually take flight.

Does anybody know how well this will work ?

 No.10630

seems useful only for reaching the outer planets. using solar panels gets you to Mars but after that power gets much much harder to come by

 No.10631

What is the purpose of having a nuclear reactor if you're using chemical propulsion anyway?
>t. brainlet

 No.10632

>>10631
It's not feasible to generate as much energy as is required for electric thrusters with chemical energy sources.
>Tracing its roots to the dawn of the Space Age, the TEM concept is attempting to marry a nuclear reactor with an electric rocket engine. The electric propulsion systems heat up and accelerate ionized gas to create a thrust-generating jet and, therefore, are alternatively known as ion or plasma engines. When measured per unit of spent propellant mass, electric engines are more efficient than traditional liquid or solid-propellant rockets, but their thrust is relatively low at any given time and they require a great deal of electric power to operate.
https://www.russianspaceweb.com/tem.html

 No.10633

>>10632
I see, they're using chemical for the first stage (duh), not for actual space travel

 No.10698

>>10630
Juno ran on solar, so you can get at least as far as Jupiter on photovoltaic.

 No.10731

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>>10628
Same energy

 No.10815

Anon nuclear rockets have existed since we've had nuclear power. the main drawback to nuclear powered rockets is heat tolerance. The thing about rocket engines is, well they're really fucking hot like thousands of degrees hot as predominantly air and hydrogen molecules are moving at extremely fast speeds, this often times means that speed can be so high that the diffused heat can pour into the engine itself leading to the engine just well heating up until it's broken causing explosions as all the energy in the rocket is released at once. Modern nuclear rockets can tolerate heats of up to 6000 degrees but that also means the risk of a rocket randomly exploding is 1 in a 100, to give you an idea of how dangerous that is a conventional plane used to transport civilians from country to country has a chance of exploding of 1 in 4 500 000.

 No.10821

>>10815
Is there really such a big risk of explosions ? If there is, wouldn't it be logical to use a nuclear pulse propulsion that already uses explosions during normal operation ? That way explosions won't be a big deal because it's designed for it.

If you have such a problem, you can either add more safety systems to try to minimize the risk, or go into the opposite direction and design the system to make use of what causes the problem.

 No.10822

>>10821
>Is there really such a big risk of explosions ?
Spaceships cost billions simply to assemble having a risk factor that high is gonna cut into budgets
>nuclear pulse propulsion
That still requires gaseous substances moving at speeds high enough to create massive amounts of heat, and that heat needs travel through the engine and be ejected to create thrust. Anon building an entirely new engine isn't a solution, building something that can contain and diffuse all that heat is one like having a container of water be boiled by the thrusters before being cooled again by having that water's heat diffuse into the igniters turning back into liquid, but finding a contraption that would do that would be costly and likely take alot of experimentation since this is a rocket not a vehicle were talking about here

 No.10823

>>10822
>That still requires gaseous substances moving at speeds high enough to create massive amounts of heat, and that heat needs travel through the engine and be ejected to create thrust.
No it doesn't, nuclear pulse propulsion drops little hydrogen bombs out the back of a space ship which then explode behind the vessel. The little bombs are shaped charges that eject most of the shock-wave against a pusher plate on the back of the ship. That pusher plate is a kind of suspension that reduces the shock of the explosions and turns kinetic pulses into mostly linear acceleration. The plate also acts as a massive shield that protects the ship from nuclear explosions. There is no internal drive system other that a little bomb ejection system.

 No.10828

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>>10823
>it doesnt need gas it just needs super heated hydrogen molecules


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