#carnot

Verfassungklage@troet.cafeVerfassungklage@troet.cafe
2026-01-24

Der hocheffiziente #Verbrenner - ist das überhaupt möglich?

Der #Verbrennungsmotor galt lange als Symbol für Ingenieurskunst und Mobilität. Doch was passiert, wenn man ihn mit dem Blick der #Thermodynamik betrachtet? In diesem Video zeige ich, warum der #Verbrenner aus #physikalischen Gründen niemals hocheffizient sein kann – und wie der #Carnot- #Wirkungsgrad diese Grenze klar definiert.

#NachhaltigVerstehen

m.youtube.com/watch?v=g2N9YBe5

Talkredius :horn_fb: :tardis:Talkredius329@dizl.de
2026-01-14

RE: gruene.social/@GrueneVictoria/

Im Vergleich zur Dampfmaschine sind #Verbrenner doch #hocheffizient, und die Physik von Herrn #Carnot war doch nur eine Theorie...
Und im Vergleich zum theoretisch erreichbaren Wirkungsgrad von 56% sind 39% doch nahe dran...
Wenn jetzt alle Verbrennerapostel genauso hocheffizient bezahlt werden...

Karl Dezeti ₀ ∫¹³⁷ ♀☺⸎ⁱ☻♂ ∂ℹdezeti@norden.social
2025-12-17
Foto einer Dampflokomotive, die bei ihrer Fahrt auf einer eingleisigen Strecke durch's Grün von ihren Abgasen umhüllt ist.
2025-12-05

@cyb3rrunn3r @SebastianDamm @TwraSun wenn dann überhaupt nur „höchsteffiziente Verbrenner“ 😉 #Carnot

themadhatterthemadhatter
2025-12-05

"Ein hocheffizienter ist ein hocheffizienter Verbrenner" - wäre da nicht diese blöde mit diesem doofen -Prozess....🙃

2025-12-03

Wenn der Kreisprozess beim Verbrenner das Problem ist, dann sollte man vielleicht auf den verzichten und alle Benzinliebhaber mit einer Kanone an ihr Ziel schießen.

Das würde auch das Straßenbild entlasten.

2025-11-18

@sellathechemist Heat engines with the Carnot limit increasing as the temperature difference between surface and the top of the atmosphere increases.

#Hurricane #Carnot

2025-04-04

Aujourd'hui c'est la . La "journée du libre éducatif" organisée par le ministère de l'éducation au lycée a Bruay la Buissière. C'est chouette, on voit le chemin parcouru : le Libre est devenu "chic et pas cher" ;-), mais un peu d'Histoire du Libre dans l'éducation permettrait de tracer encore mieux le chemin à parcourir... Je vais essayer de le faire un peu lors de ma table ronde sur les communs numériques à l'université. Je tiens aussi un stand @clx et

OpenSoul ✅OpenSoul
2025-02-02

Stavo vedendo che non ci sono moltissime informazioni storiche anche su alcune rivoluzioni che usiamo e useremo sempre più

Per esempio negli anni50 l'ingegnere inglese progettò e costruì una delle prime residenziali che si basava ovviamente sui lavori teorici di e di quasi 100 anni prima

Sembra costruì una PDC con SCOP pari 3.42 con refrigerante l'anidrite solforosa e acqua scaldata a 55°

Pochissimi lo citano e non ha neanche una voce su

Morsus Apri R.I.P. Natenom🕯️🖤morsuapri@troet.cafe
2024-04-08

#BreakingNews
#Science
#Thermodynamik
#Carnot
#Wirkungsgrad

Die weltbekannte Thermodynamikkoryphäe S. Wagenknecht hat Carnot widerlegt und stellt Verbrennungsmotoren mit sensationellen Wirkungsgraden in Aussicht

Verbrenner-Aus: #Wagenknecht fordert „neue Verbrennergeneration“ - Wirtschaft - SZ.de sueddeutsche.de/wirtschaft/ver

Oliver SteinbockSteinbockGroup@mas.to
2023-10-15

"Everyone knows that heat can produce motion"

#Carnot still believed in caloric theory (where heat is a fluid). His one-and-only book (1824) was not an initial success, but #Clausius knew of it some 40 years later prior to formalizing the concept of #entropy.

I tried to see if and how Carnot found the efficiency equation eta = 1-Tc/Th. Not so clear to me, although he does talk about the trends. Does someone know?

#thermodynamics #chemistry #physics #pchem

Reflections on the Motive Power of Fire, and on Machines Fitted to Develop that Power

Every one knows that heat can produce motion. That it possesses vast motive-power no one can doubt, in these days when the steam-engine is everywhere so well known.

To heat also are due the vast movements which take place on the earth. Tt causes the agitations of the atmosphere, the ascension of clouds, the fall of rain and of meteors, the currents of water which channel the surface of the globe, and of which man has thus far employed but a small portion. Even earthquakes and volcanic eruptions are the result of heat.

From this immense reservoir we may draw the moving force necessary for our purposes. Nature, in providing us with combust- ibles on all sides, has given us the power to produce, at all times and in all places, heat and the impelling power which is the result of it. To develop this power, to appropriate it to our uses, is the object of heat-engines.

The study of these engines is of the greatest interest, their importance is enormous, their use is continually increasing, and they seem destined to produce a great revolution in the civilized world.

Already the steam-engine works our mines, impels our ships, excavates our ports and our rivers, forges iron, fashions wood, grinds grains, spins and weaves our cloths, transports the heaviest burdens, etc. It appears that it must some day serve as a universal motor, and be substituted for animal power, waterfalls, and air currents.
2023-03-22

nochmal zum Mitschreiben:

Wir erzeugen mit der 5 fachen Menge Primärenergie (die anderswo viel dringender benötigt wird) #Efuels, um sie dann in einer Maschine zu verbrennen, die extrem ineffizient ist?

Ist das diese berühmte deutsche Ingenieurskunst?
#Absurd #Carnot

Dr. Brad Rosenheim has moved!Brad_Rosenheim@climatejustice.rocks
2023-01-12

Unfortunately Porsche does not run its cars on #Carnot engines. Using the products of #combustion to recreate me than would take at least as much energy as combustion releases. If we account for the diffuse sources of #CO2 rather than concentrated reservoirs of methane, this proposition is an #energetic loser.

2022-11-30

A Thought on Ambient #Temperature Changes

The total quantity of heat diffused and convected into the atmosphere should consist of the heat produced from the #radiations #emitted by the ground and absorbed by the atmosphere, the heat transferred by conduction and convection into the air from the heating of the ground by absorbed radiations from the Sun, the heat produced in the air from emissions reflected from the ionosphere.

Then there is #Thermodynamics with the myriad definitions, though a rational reflection on the work of #Carnot points to such consideration as the inter-convertibility of heat, Q, and the internal energy, E, of matter; and that pushes for #Particle #Physics understanding of the #transducer #physics of heat and internal energy of matter.

After all, such physics is applicable to the radiations conversions into internal energy of the ground constituents and on to conversions into heat and conversion into internal energy of the ambience constituents upon transfer into the air, etc. Then, of course, an interpretation of #HelmHoltz #Free #Energy relation in the context of Newton's Law is suggested as a #Heat #"Flow" equation/inequality with #entropy S as resistance consistent with #Clausius thinking on formulating against #Entropa the pure transformation.

#Climatechange, #Globalwarming, #NegativeEmission, #CarbobCapture

So there is the crux of the calculation of the heating of the Earth and of its atmosphere.

💡 La machine parfaite - machines thermiques - Monsieur Bidouille

video.monsieurbidouille.fr/w/m

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