Parker Solar Probe heat shield explained
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- Опубліковано 30 вер 2024
- The Thermal Protection System (TPS) enables NASA’s Parker Solar Probe to get close to the Sun. The TPS is a composite structure made of top and bottom carbon fiber facesheets with carbon-carbon foam between them. At closest approach, the front surface of the heat shield will be at about 1371 degrees Celsius (2500 degrees Fahrenheit), the back surface the heat shield will be about 315 degrees Celsius (600 degrees Fahrenheit), but then the spacecraft bus is basically sitting at 30 degrees Celsius (85 degrees Fahrenheit). Patrick Hill (Deputy Project Manager for Parker Solar Probe) and Betsy Congdon (Lead Thermal Protection Engineer), both from the Johns Hopkins Applied Physics Laboratory, explain the design of the heat shield.
Credit: NASA/Goddard Space Flight Center/Johns Hopkins APL
#ParkerSolarProbe #SolarProbe #Heliophysics
Delta IV Heavy launches NASA’s Parker Solar Probe ua-cam.com/video/socbr3DbxUA/v-deo.html
Parker Solar Probe explained in detail ua-cam.com/video/zJo0tIxNLxU/v-deo.html
Parker Solar Probe - orbit and timeline ua-cam.com/video/cMNQeCWT09A/v-deo.html
Carbon foam. Guess you can't burn something that is already burned...story of my life.
this is the best probe specific videos I've seen.
Fahrenheit? Do you measure the distance to the sun in hand spans too?
In the description you will find it in Celsius.
Why? Are you confused by any measurement that doesn’t require you to count your fingers? Cause that’s where bass ten comes from.
Not necessarily, 10 fingers isn’t optimal for everything
In imperial (neanderthal) units, an astronomical unit is 744 million furlongs or 2.97 billion rods.
Millimetres to Meter: 1000 Inches to foot:12
Meters to Kilometre: 1000 Feet to Yard: 3
Yard to a mile: 1760
Grams to Kilogram: 1000 Ounces to a pound: 16
Kilograms to a tonne:1000 Pound to ton: 2240
Its just that simple, lets not have another Mars Climate Orbiter
Shame NASA failed to use SI
I would assume they use SI internally, as is the standard in the scientific community, but these interviews are aimed at the greater (US) public.
Yet it’s NASA sending this probe. Sure seems to work using their measurement doesn’t it?
So the heatsheild is a sandwich of carbon-carbon composite then a carbon foam and then another carbon-carbon composite. Carbon-carbon composite is carbon fiber embedded in a carbon matrix. So it is "CARBON!!!"
Diamonds are carbon too, but they sure as heck arent good thermal insulators. I quite liked the emphasis they put on correctly saying all the carbon based components the shield has
Carbon sandwich with carbon filler. 100% chocolate Oreo. :-)
Very informative and excellent video.
Is there any heat transfer due to exposed portion of some instruments behind the Heatshield into the probe due to Conduction ?
thought the same
From what I gather, yes but minimal
I guess everything coiled by cooling radiator, and it is 85F at the back..
What is the “white coating “ made of?
Aluminum oxide.
so it's basically a sun-baked sandwich
what kind of money do people on this project earn
It has become the most successful mission in space by mankind.
Thanks to NASA
Not even close to ua-cam.com/video/iIvgoac4o_A/v-deo.html
5:14 I can see James web space pic... now its already launched perfectly...
What keeps the probe from rotating and the heat shield facing the wrong way exposing the wrong side to the sun? Very fascinating indeed
Bruh When we send parkar solar probe to Proxima century?
Really poor quality microphone pickups used for this article
omg if I looked at that truss and someone asked me how heavy it was I'd guess 300+ pounds lol
2500 Fahrenheit on the front face? 1370C, or 1645 Kelvin.
That is well past yellow hot, approaching pure white hot. About *exactly* the melting point of mild steel.
They are using a million, thin, 4 by 8 panels with 4 million seams. Never understood the shield in the movie 'Sunshine'.
Nice and cool in the back, the same shit would happen in a block of concrete
I always wished i could work on things like this in some small way.
that's not how in the Sunshine movie... :D
very poor video. almost none explanation...
This is great innovations
The shield could have been made a curve rather than making it flat, so that it could scatter a large fraction of light waves. That could also increase the surface area perhaps. Anyway it is already been doing incredible job. Hats off to the scientists.
But what about the sun gravety
Powered by arduino.
Hey! A fellow Patrick! And he's a scientist! What a time to be alive!
Just brilliant design. But I’m curious why they didn’t mention the bone ground up in the heat shield used because of its heat reflective properties.
Angular diameter of Sun will be 12° in closest point. Not 90° as you could to think.
I love it😀😀😀😀😀😀
Congratulations
En mí opinión sólo una órbita,en la segunda muerte sistema...es para 2022..
What's the flame temperature incident on the carbon foam you're showing? And it's about one million degrees centigrade in corona so how does this carbon foam respond to million degrees centigrade temperature?
At closest approach, the probe is “coming within 5.3 million miles (8.5 million kilometers) of the solar surface.”
Dad be like “fake don’t watch these stuff it Melt it”
En mí opinión ésa placa es magnetica de alta densidad.. para rechazar el campo solar.
Great job! Is that heat shield material descended from the tiles on the shuttle?
😍😍😍😍👏
Okat
Bogus
Should be solar powered
It doesn't have to be rocket science 😐
Is it a better insulator than aerogel? Or its just better at high temps?
My guess is that aerogel's insulation is based on air being trapped inside the gel lattice, and in the vacuum of space that air would seep out, rendering the gel useless. Thus, they need a material whose insulation is not based on trapped air.
why not aerogel?
What would be the angular diameter of sun when the Parker Probe is at perihelion?
Okay now that I have some time... getting back to my own question....
So using small angle formula:
Given:
Dist = Distance from probe to sun = 6,000,000 Kms.
Dia = Diameter of Sun = 1,392,784 Kms.
Pi = 3.14159
Find:
Theta = Angular Diameter from probe.
Dia / Dist = Theta / ( 180 / Pi )
1,392,784 / 6,000,000 = Theta / ( 180 / 3.14159 )
0.2321306666666667 = Theta / 57.29582790879777
13.300188 = Theta = Angular Diameter from probe = 798 arcminutes
Woahh!!!!! 798 arcminutes is HUGE!!
Hypothetically if you could safely sit on Parker Probe when it's closes to the sun and look at the sun; the sun would look as big as your fist on extended arm.
Just wow!
That doesn't seem to be that big (to me).
Distance to sun about 1/24th AU
Great parkar solar prob video
Are we getting pictures of the sun from this probe?
Parker Solar Probe explained in detail ua-cam.com/video/zJo0tIxNLxU/v-deo.html
SciNews Thanks
superb explanation
Good for building material
Not cost effective for that application, I would think
International Units, please!
Provided in the description
Excellent!! 👍
👌👌🎉
Good job guys
En mí opinión ésa placa es magnetica de alta densidad.. para rechazar el campo solar.ay dos fuerzas directa.
Are you even real? Escribes como un robot, no se te entiende.
Mga kano talaga ano gustong patunayan sabayan ang talino ng diyos, naku po naman di mabubuhay ang tao sa araw.
Marami tayo matututunan sa ginagawa ng mga engineers tsaka scientists ng NASA. Hindi naman nila hinahabol ang talino ng 'diyos' na tinutukoy mo. Mas marami tayong matututunan sa pagaaaral ng mga stars kesa sa pagbabasa ng bibliya.
ikaw nga wala pang napapatunayan eh lakas mo maka ano.