I was trying to answer the question about if it's possible to build a Maxwell demon only using non-moving parts. A kind of diode device that allows particles to pass on on direction but not in the other, without having any information about such particles (unlike Maxwell's demon).
The only...
Yep, that was correct.
I simulated a gas and different connections between chambers and eventually the gas density always equilibrates...
I used this program as base, and added code for vector walls.
https://www.falstad.com/gas/
Simple passage
Using a CEC
Using a Tesla valve
...didn't...
A though experiment:
We have two gas chambers at the same temperature and pressure, separated by a wall punctuated by very small pores. Let's say small enough to allow the pass of only a few gas molecules at a time (so, no complex interactions between gas molecules inside the pore).
These...
Hi,
after learning a bit more about thermodynamics and studying the Lenoir cycle (simple as a vacuum engine, as it has expansion but no compression), I tried to annalyze again the vacuum engine cycle.
For clarity, I am just describing a cycle which uses adiabatic compression.
Let's describe the...
Well, it's true I don't know much about flamelickers. I know these machines were very very simple and extremely inefficient, but there is little info about them. "Less than 5%" is one of the few references I read.
Things I know:
- Known by the names: flamelicker, vacuum engine, atmospheric...
Here there are PV diagrams I worked out. Pressure in bars, volume in m3.
Pressure is absolute, as the vacuum engine works under ambient pressure.
To plot the adiabatic I used the P* (V^y) = K condition...
Oh boy, "almost all wrong". :cry:
I hope at least heat addition at constant pressure and heat removal at constant volume are correctly calculated!
I will refrain from drawing the cycle diagrams for now, as I am still grasping basic concepts.
After putting some work in the problem, I think I was...
Hi,
I am trying to understand which thermodynamics process or processes could model a vacuum engine (mostly known by the name "flamelickers") and similar engines..
In a vacuum engine you have a cylinder and piston system that draws hot air from a heat source, cools it and mechanical work is...
Hi,
I specified "no friction" and set up the arrows, trying to convey the idea that the liquid is in movement due to inertia and there is no reason for it to stop.
My understanding of this system is that temperature in this idealized counterflow heat exchanger is completely exchanged, and...
I am (slowly) learning thermodynamics. I find a lot of it puzzling and makes me formulate many conjetures; I hope any of you can help me with this one about heat exchange.
Let's start with this system:
There is a closed hose loop filled with water; its temperature gradient goes from cold to...