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According to Tesla's theory... If we first ran the Peltier module to cool the bottom plate. (Keeping it insulated of course, to preserve the cold). The engine could then run on the surrounding ambient heat, and with perfect insulation and a 100% efficient engine, it could run indefinitely. He recog...

Let me ask you fool. Do you doubt that evaporative cooling (using water) can reduce the temperature of the air? i.e. "swamp cooler". Why, OMG, how is that possible! Water boils at 212°F !!!!! You couldn't possibly use evaporating water to cool below 100°C !!!! Evaporative cooling with wat...

Could i ask for source of this information ? I've been studying this stuff for 50 years... Alpha have 1.41 more cc at 90 phase angle. Beeing all other equal. Gammas do.suffer from lowest working fluid beeing heated and putted to work. Or all extra dead space is cushion to absorb pur precise pressur...

One major difference...hot gamma has more output for same regen than cold gamma and hot beta has more output for same regen than cold beta. Even with excellent regen, this is usually a big difference in overall efficiency. An alpha has the lowest regen and the best torque (everything else equal). h...

One major difference...hot gamma has more output for same regen than cold gamma and hot beta has more output for same regen than cold beta. Even with excellent regen, this is usually a big difference in overall efficiency. An alpha has the lowest regen and the best torque (everything else equal).

Stroller - I think Vincent is suggesting a bang-on demo akin a sloooow isothermal expansion lifting a rock. In this manner, the only 'fuzzy belief' required is that an isothermal expansion has no change in internal energy, whereby all heat input 'must be' converted into work, no ands, ifs, or buts. ...

I'm not sure what really defines either, but by my logic it's a Beta for the following reasons. 1- Both piston and displacer share the same exact bore and axis of travel. 2- Most importantly, the displacer and power piston occupy the same space at various points of the cycle, a feature reserved for...

The average bulk temperature is what the engine reacts to. Any pressure sensors will react similarly to the engine, so it is a fair representation to use for analysis. The sensor will react as fast or faster than the engine. The theoretical pressure change due to volumetric change in an unheated en...

Over the years, I've often heard of Tesla's ambient heat engine (cold hole) and blown it off as just another one of his wacky schemes (he had many). However, a recent post made me reconsider the possibility. Which post, Matt? Vincent - I just saw this, I borrowed your planet Bob analogy somewhat......

Tom - probably best to start a new thread with 2024 in title. The thread drift in this forum makes finding previous comments a challenge. BTW my original intent on this thread was that Tesla's cold hole appears valid on paper, but achieving such has an obscure issue where the Carnot 'tax' is double ...

The experiments you did that I remember were insulating the top cold plate while heating the bottom which is similar, albeit more extreme. I was just over on this thread reading 2020 posts where you had tested ice melt time with running LTD vs static LTD and were going to test 2 LTD simultaneously. ...

I don't have the time to read everything here and elsewhere. I'm still a working stiff and my day job has been brutal the past year (company move).

So, where did you post this here?

Yeah, that's the graphic. Maybe I saw a forum link to it somewhere recently. Anyway, what was the story behind the graphic? (I notice tesla-test capture)

edit: in graphic, is one engine running while other is not?

Should the ice melt faster under just one engine? Or will it melt faster sandwiched between two engines. Anyone care to guess? Hmmm, how about 2 identical setups (on ice) with one engine running while other engine is not. I tried to find your recent graphic with 2 engines to review, but couldn't.

Tom, in the name of science I spray painted half of a Pyrex bowl flat black and tested with the thermal gun at room temperature and after hot water exposure. There was no discernable difference except for a small variation where the paint transitioned to clear glass. I also tested a piece of black ...