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by Tom Booth
Thu May 02, 2024 12:30 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Tom Booth wrote: Thu May 02, 2024 12:13 pm
The stationary CHP units were for the bases back in the US.
Still in use apparently:

Google Earth coordinates:

40°30'02"N 112°22'24"W

Installation at Toole army depot.
Resize_20240502_153656_6387.jpg
Resize_20240502_153656_6387.jpg (321.35 KiB) Viewed 6 times
Those are the earlier smaller versions without the cooling system though.
by Tom Booth
Thu May 02, 2024 12:13 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Infinia had an earlier version that didn't require cooling. The army wanted a CHP that also produced hot water. Bad idea IMO. This thing is the result. Good at making hot water though Whaaat? The army were intending to cart 15 foot parabolic mirrors around the battlefield to make nice shaving water...
by Tom Booth
Thu May 02, 2024 11:41 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Infinia had an earlier version that didn't require cooling.

The army wanted a CHP that also produced hot water. Bad idea IMO. This thing is the result. Good at making hot water though
by Tom Booth
Thu May 02, 2024 11:36 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Nearly all the heat goes straight into the cooling water, but not using cooling water could damage the heat sensitive linear generator. The only option is to put way more heat in faster than the cooling system can take it away. Totally designed around Carnot heat rejection principles where even at ...
by Tom Booth
Thu May 02, 2024 11:29 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

If you view that thread you'll see the thing is covered with a slew of thermocouples that happen to be compatible with my reader, so I can get temperature readings easily. coupler4.JPG The cooling water heats up immediately when heat is applied to the receiver. Getting the engine hot enough to start...
by Tom Booth
Thu May 02, 2024 11:14 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

I need to construct engines that actually run and produce practical power. My NASA engine has abysmal thermodynamics. All the heat is transfered straight into the cooling system. You need a 15 foot parabolic dish and full sun, about 6000° concentrated on a point the size of a softball just to get i...
by Tom Booth
Thu May 02, 2024 10:19 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Isothermal Heat Transfer
Replies: 89
Views: 1086

Re: Isothermal Heat Transfer

Tom I'd recommend you spin one of your engines by hand and take note of when the displacer fully exposes the hot plate. I have, probably 1000 times. Of course, you may have a different idea about what constitutes "full exposure". An LTD displacer moving up, off a hot plate has "full ...
by Tom Booth
Thu May 02, 2024 9:49 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Then the cold working fluid gets hot, expands and does work, converting the heat into mechanical motion. The result being that the working fluid cools back down due to work output or the conversion of heat into work. Cools back down to the original cold temperature before heat was added, OR COLDER....
by Tom Booth
Thu May 02, 2024 9:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Isothermal Heat Transfer
Replies: 89
Views: 1086

Re: Isothermal Heat Transfer

Hopefully this video definitively shows that the displacer timing is 180 degrees behind the standard. The crank assembly is pressed together and hasn't been modified. It is the same as all Essex engines that can be viewed on YouTube. https://youtu.be/F3dqnWTgpWc?si=oWAuizocmAkX40yV I don't know, bu...
by Tom Booth
Thu May 02, 2024 7:23 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

... you need to be wary of the readings from IR thermometers, ... When you prefer to cling to 200 year old obsolete theory over modern instrument readings there can be no more progress. When you are blind to obviously significant current video evidence preferring petrified centuries old speculation...
by Tom Booth
Thu May 02, 2024 1:02 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 447
Views: 23327

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

I've found through experiment that work output alone is sufficient even when heat "rejection" to any "sink" has been eliminated. In fact, eliminating the "sink" almost invariably increases RPM and power output rather than reducing it, as might be expected due to heat b...
by Tom Booth
Wed May 01, 2024 8:20 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Isothermal Heat Transfer
Replies: 89
Views: 1086

Re: Isothermal Heat Transfer

I'm wondering how this arrangement would work if the displacer piston were tight fitting and the displacer chamber was open to atmosphere at the end. Kind of an opposed cylinder Alpha.
by Tom Booth
Wed May 01, 2024 7:58 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Isothermal Heat Transfer
Replies: 89
Views: 1086

Re: Isothermal Heat Transfer

The phasing IMO, or observation, from what I can tell from videos on YouTube of Essex engines actually running, the phasing or timing appears to be identical to all other Stirling engines. Defining TDC as "full compression", (minimum volume for the Power piston) with the displacer 90° ahea...
by Tom Booth
Wed May 01, 2024 12:00 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha stirling engine working principle
Replies: 23
Views: 3042

Re: Alpha stirling engine working principle

We are not trying to debunk you. ... A blatant lie. Nearly every post you've made in this forum since you arrived as "fool" has been almost invariably directed at proving me wrong. Including this one: You have "real science" and you are only trying to "help". Your moni...
by Tom Booth
Wed May 01, 2024 11:45 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 36
Views: 286

Re: Tesla's Ambient Heat Engine revisted

Sorry, this is incorrect: In fact, there is really no such thing as "isothermal" in the real world, that transfers heat without a temperature difference, even if given "forever". Boiling water and similar phase change processes can be ACTUALLY isothermal. Both the temperature of ...