Stirlingengineforum.com

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 ...

...Now the momentum is being used to recompress the gas... Geez Fool, you've been sucked in with bad buzz. Tom enjoys using momentum as another magic energy source, but momentum is NOT energy (go ahead and google that). Any momentum that the piston/flywheel/etc "absorbs or releases" is fr...

One of the forum members posted a few translations of Koichi's research. Scroll down part way in this page to get to his LTD monster. http://www.stirlingengineforum.com/viewtopic.php?t=5520 I keep a copy of the screenshot in the following post where the dimensions are shocking (note DP vs PP details...

It seems to me that this is the most difficult measurement to make, because the energy going into keeping the flywheel spinning by overcoming any friction in the system is so small that any measuring apparatus will slow and stop it. But without proper measurement, the main thrust of your contention...

You guys are right. I must be drinking too much lately. What I think when I hit Starbucks more than once a day. What it really is, is a genius way to bring the displacer movement more in phase without complicating the linkages. What I thought while watching your video (you should leave it up, maybe...

I think I agree with Tom on this. The crank pins are offset by 90 degrees. The push rod doesn't even reverse the direction. It's called a two force member, kinda, sorta. If anything it just reverses the viewpoint of what direction the engine will turn. The gas sees the same hot cold volume phases. ...

Thanks Tom. I started with same Vmin Vmax premise, but still couldn't pick up phasing until I tweaked a graphic. hot vs cold PP gamma.png I started with this past graphic, nixed regen, then made config head to head Essex vs Stirling.png Both graphics show distinct processes (double dwell) where head...

Stroller - thanks for the graphic, but I'm still lost on this bugger due to phasing.