larger heat transfer surfaces improve heat transfer when the maximum temperature gradient is already approaching the limits of the materials' thermal capacity. Continuous refinement of design details then leads to reliable service life. SARNES jet heater
Es handelt sich vermutl um eine Weiterentwicklung von NASA-Technologien. Mit größeren Fasern (u. a. Alumina/Borosilikat) für mehr Festigkeit und einem Reaction Cured Glass mit Molybdän-Disilizit für bessere Strahlungseigenschaften und thermische Schockresistenz.
We need heat shields to protect us, since we use the air to slow us down as we return to Earth.
From orbital speed, it gets to 1650°C / 3000°F. From the Moon: 2750°C / 5000°F.
For yesterday's Starship suborbital test flight, peak was 1450°C / 2600°F. Great to see the @SpaceX progress over the last 3 flights. Making them truly reusable is complex and necessary for permanent, cheap space access.
image compilation: @niccruzpatane
The toughest remaining challenge for Starship is a reusable orbital heat shield
Nobody has ever achieved it before
SpaceX’s new Raptor 3 engine is sublime engineering — no heat shield needed, saving mass and improving reliability
Space Shuttle thermal tiles were such poor heat conductors that you could grab them by their edges seconds after being in a 2200°C oven
[📹 Roscket Tasartir]
Jensen Huang just reverse-engineered why Elon Musk operates at a speed no one on the planet can match.
Three traits.
The first is deletion.
Huang: “He has the ability to question everything to the point where everything’s down to its minimal amount.”
Most engineers solve problems by adding.
Musk solves them by subtracting.
Every part. Every process. Every assumption that survived because no one had the nerve to kill it.
He picks it up. Asks if it’s load-bearing. If the answer is anything less than absolutely, it is gone.
Not simplified. Not optimized. Removed.
What survives is the skeleton. The bare physics of the problem. Nothing between intent and execution.
Huang said it plainly.
As minimalist as you could possibly imagine.
And he does it at system scale.
Not at a product level. Not at a department level.
Across entire companies. Entire industries. Entire supply chains.
He strips a rocket the same way he strips a meeting. Down to the load-bearing walls and nothing else.
The second is presence.
Huang: “He is present at the point of action. If there’s a problem, he’ll just go there and show me the problem.”
Not a Slack message. Not a report filtered through four layers of people who weren’t there when it broke.
He walks to the failure. Stands over it. Puts his hands on it.
Most executives have never seen the actual problem their company is trying to solve.
They have seen slides about it.
Read summaries of it.
Formed opinions about it in rooms that are nowhere near it.
Musk stands over the broken hardware and does not leave until it works.
That collapses the distance that buries most organizations.
The gap between something breaking and the person with authority to fix it actually understanding what broke.
In most companies, that gap is weeks.
For Musk, it is hours.
The third is the one that bends everyone around him.
Huang: “When you act personally with so much urgency, it causes everybody else to act with urgency.”
Every supplier has a hundred customers. Every vendor has a dozen priorities. Every manufacturer has a backlog stretching months into the future.
Musk makes himself the top of every single one of those lists.
Not by demanding it. By demonstrating it.
When the CEO shows up at your facility at midnight. When he is moving faster than your own internal team. When his timeline makes yours look like a suggestion.
You do not put him in the queue. You rearrange the queue around him.
Huang watched this up close.
Huang: “He does that by demonstrating.”
Not by asking. Not by negotiating. Not by leveraging a contract clause.
By moving so fast that everyone else’s normal pace feels like standing still.
Three traits. Strip everything down. Show up at the failure. Move so fast the world rearranges around you.
That is not a management philosophy.
That is why one man runs six companies while entire boards cannot keep one moving.
even the best-designed, most efficient heaters are only as good as their control system.
It decides lifetime, efficiency & max temperature. SARNES jet heater – latest version
The new SARNES Electric Jet-Heater – the clean 1:1 replacement for gas burners.
✓ Precision ±1 °C
✓ Instant full power
✓ Highest power density
✓ 100 % emission-free
✓ Fully scalable
Perfect for industrial furnaces, heat treatment
Easy retrofit – heat better – switch now!
Der neue elektrische Jet-Heater von SARNES – der saubere 1:1-Ersatz für Gasbrenner.
✓ Präzision ±1 °C
✓ Sofort volle Leistung
✓ Hohe Leistungsdichte
✓ 100 % emissionsfrei
✓ Voll skalierbar
Perfekt für Industrieöfen, Wärmebehandlung,
Einfach umrüsten – besser heizen
“The ideal engineer is a composite… He is not a scientist, he is not a mathematician, he is not a sociologist or a writer, but he may use the knowledge and techniques of any or all of these disciplines in solving engineering problems.”
- N.W. Dougherty