Search found 307 matches
- Wed May 08, 2024 8:30 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Compression cycle.. worthwhile?
- Replies: 11
- Views: 9835
Re: Compression cycle.. worthwhile?
"Ah..., that doesn't apply to Stirling engines", I've been told again and again. If not, why not. The energy represented on a PV diagram depends on path, and the direction traveled on the path. The initial difference between a Stirling Engine and a Stirling cooler is the direction taken o...
- Wed May 08, 2024 7:57 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Regenerators.... Have I got it straight what they do?
- Replies: 8
- Views: 1513
Re: Regenerators.... Have I got it straight what they do?
Matt ran into the problem, in one of his schemes, that the temperature of the regenerator was significantly higher than the regenerator so was ineffective in that adiabatic temperature range of the cold plate. Conversely it didn't get high enough either, for the hot plate. Changed his theoretical ef...
- Wed May 08, 2024 7:33 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
Re: Tesla's Ambient Heat Engine revisted
hopefully others will verify the results with their own independent research. I'm not looking for a "following". Following your experiments to verify them, is different from a following. But you knew that anyway, and thought the statement sounded cool, misleading, but cool. What I'm still...
- Wed May 08, 2024 7:01 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Try not to tell people about me, you obviously know nothing about me. Your ignorance appears to be fostering your arrogance.
- Wed May 08, 2024 6:57 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
The only thing more ignorant than "Get what?". Is thinking there is a god.
Try to stay out of the fantasies. Even Charles Schultz gets it. Feynman was talking about how the ability to find errors in science books makes a student smarter, and complaining about them, even fixing them, not.
Try to stay out of the fantasies. Even Charles Schultz gets it. Feynman was talking about how the ability to find errors in science books makes a student smarter, and complaining about them, even fixing them, not.
- Wed May 08, 2024 6:51 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
- Mon May 06, 2024 6:36 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
No I'm not a "good student". Sorry to disappoint I think the quote is "smart students". I can tell. Smart students learn how to identify errors in teaching, learning, and experimenting. The rest, who cares. They won't be doing much productive anyway. Why would your not getting i...
- Mon May 06, 2024 6:20 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
Re: Tesla's Ambient Heat Engine revisted
https://m.youtube.com/watch?v=P11q-BAhvqk You claim the engine was running for three hours, but it is clearly removed from the heat seconds before all measurements are made. Placed on a "cold" ambient table cooling it enough that even when placed back on the water cup, with mist coming off...
- Mon May 06, 2024 6:12 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Adiabatic.svg.png Top left of adiabatic is point 2. Isentropic expansion follows down thick green line, and does positive work equal to the shaded green area under the curve. Compression returns along the same line back to point 2. Requires work input equal to the shaded green area under the thick ...
- Mon May 06, 2024 4:44 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
Re: Tesla's Ambient Heat Engine revisted
No. It's just modeling a wall, and given surface temperatures. The constant temperatures outside are standard heat source and sink models. That is similar to all the high and low constant temperature.sources used to model engines. As Feynman said, "TSOWGI". It's supposed to show how heat f...
- Mon May 06, 2024 1:38 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
"You just skip 1 and go straight to 2?" You are proposing a series of adiabatic processes that start at point 2. The only adiabatic path available is the one that starts at point two, where you switch to adiabatic processes, follows an adiabatic expansion line forward until all motion is e...
- Mon May 06, 2024 1:26 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
Re: Tesla's Ambient Heat Engine revisted
n=1-Tc/The
1-300/400 = 0.25
1-1000/1200 = 0.166
Wider ∆T lower efficiency! How come?
1-300/400 = 0.25
1-1000/1200 = 0.166
Wider ∆T lower efficiency! How come?
- Mon May 06, 2024 1:15 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
- Sun May 05, 2024 7:14 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 109
- Views: 1177
Re: Tesla's Ambient Heat Engine revisted
I keep thinking that acrylic is transparent to infrared, so what is the camera reading that has that temperature? Also when there is a wall, the temperature difference between the inside and outside is an indicator of how much heat is being ejected. A function of delta T and R value. I also think th...
- Sun May 05, 2024 6:56 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 487
- Views: 25191
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Is this supposed to be isochoric heat addition at TDC? Yes. V1 V2, point 1 to point 2, isochoric heat addition. V1=V2. You got it. Isochoric. Is there a point 1 ? Yes. Qcz, V1, T1, P1. Engine cycle starting point. Point 2. Qhz Beginning of isentropic expansion stroke. End of isentropic compression ...