Search found 3484 matches
- Sun May 12, 2024 10:48 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
...The Otto cycle proved that compression could easily increase output, but the headbanger at the time was that it also could increase efficiency, and this took a long time to sort out... So what's the answer? How was it sorted out? How does compression increase efficiency? The best explanation I'v...
- Sun May 12, 2024 9:42 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
... BTW my original intent on this thread was that Tesla's cold hole appears valid on paper. I've got a few problems with it. Tesla wrote: the virtue of the principle I have discovered resides wholly in the conversion of the energy on the downward flow."... In other words. His thinking was sti...
- Sun May 12, 2024 2:43 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
The added energy has increased pressure, but temperature? Possibly, but this is apparently not essential. So how, or in what way is the engine "running on" i.e. powered by a temperature difference? I think this is the unicorn forest Matt always talks about. Explain the mechanism where pre...
- Sun May 12, 2024 1:13 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
But Tom, you can't deny that Stirling engines can run on hot and cold temperature diffentials can you? What is actually going on? Take away the extraneous trappings and look at what is actually happening with the working fluid and piston. You have a piston. Trapped air on one side, open atmosphere ...
- Sun May 12, 2024 12:02 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
... To say the engine "runs on a temperature differential" suggests or implies, or a causative relation. ... Should have been To say the engine "runs on a temperature differential" suggests or implies, or assumes a causative relation." Not sure what my phones rather over ze...
- Sun May 12, 2024 10:35 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
To add to the above. A Stirling engine, much like a heat pump or refrigerator, at least in part CREATES a temperature differential, or perhaps MAINTAINS the given temperature differential, it does not "run on" the temperature differential. To say the engine "runs on a temperature diff...
- Sun May 12, 2024 10:04 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
The new meter and thermocouples arrived today Compress_20240512_125355_5025.jpg For the experiment, when the engines arrive, I won't be posting to this thread though. As I don't think that is what Matt started the thread for. There is a previous thread where this experiment was first proposed I may ...
- Sun May 12, 2024 8:59 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
... OK. If you don't think Stirling engines run on differentials in pressure and that increasing the temperature differential by cooling the cold side will increase the pressure differential then I'm sorry. ... That is a conditional "apology" based on a misrepresentation of my position, s...
- Sun May 12, 2024 8:52 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
... please don't respond to mine either. ... I'll respond (politely) as I see fit, in particular any time I'm being misrepresented, my experiments are being criticized, my intentions are being falsely represented, foolish theories regarding my experiments are being put forward in an effort to dismi...
- Sun May 12, 2024 8:03 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
The average bulk temperature is what the engine reacts to. ... ... Just curious but what do you define as "average bulk temperature".? And in what way does the engine react to the "average bulk temperature". Do you perhaps mean the thermocouples "reaction" due to slow ...
- Sat May 11, 2024 11:52 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
Say I'm wrong. Regardless, it appears that something , friction, pressure, or some unidentified mystery force is elevating the temperature around tbe piston/power cylinder while the top cold plate appears to remain cool. If the power piston were further away from the top plate, possibly my theoretic...
- Sat May 11, 2024 3:56 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 510
- Views: 26774
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
I came across two opposing theories. One says basically heat is a fluid and runs through a heat engine like water. The other says heat is energy and basically "disappears" inside the engine, as it is converted to work. If the latter is true, then it is really not necessary to design an en...
- Sat May 11, 2024 1:40 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 154
- Views: 1984
Re: Tesla's Ambient Heat Engine revisted
... Work is the easiest to measure. ... Alternately a generator and voltamp meter could suffice. I pointed out that this is the main thing lacking from Tom's experiments too. As anyone who's been here any length of time, I've been running generators and using volt meters and amp meters when appropr...
- Fri May 10, 2024 5:10 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
- Replies: 8
- Views: 7774
Re: Does a medium sized SE exist that could charge 12 V car battery properly?
I first became aware of this ability of Stirling engines to "grow stronger" under a gradually increasing load reading a VITA publication authored by William Beale: PDF: https://pdf.usaid.gov/pdf_docs/pnaas739.pdf Compress_20240510_200747_7072.jpg This is probably the result of the added wo...
- Fri May 10, 2024 4:22 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
- Replies: 8
- Views: 7774
Re: Does a medium sized SE exist that could charge 12 V car battery properly?
This engine made from water bottles, according to the description, is charging two 12 volt batteries. https://youtu.be/CXsFAB77Mzo Only a few watts though. How do you define "properly"? Almost any wattage will charge a battery eventually . Most common car battery chargers are between 2 amp...