Search found 188 matches

by Ferraccio
Mon Feb 06, 2012 1:50 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Design/Build One HP Alpha Stirling Engine
Replies: 33
Views: 23249

Re: Design/Build One HP Alpha Stirling Engine

Platinum in form of catalyst (sponge), (as all heavy metals in form that can be dispersed), is toxic, and a bit expensive.
by Ferraccio
Sun Feb 05, 2012 4:12 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Design/Build One HP Alpha Stirling Engine
Replies: 33
Views: 23249

Re: Design/Build One HP Alpha Stirling Engine

Of course copper, silver, gold-platinum alloy, platinum, or iridium are the best, but some are not stable at high temperature (such as copper, or the silver), or have some other spiritual element that it discourages the use. e.g. a spiritual element may be is extract too much money from the pockets....
by Ferraccio
Sun Feb 05, 2012 3:59 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Design/Build One HP Alpha Stirling Engine
Replies: 33
Views: 23249

Re: Design/Build One HP Alpha Stirling Engine

If possible is good Nickel alloy, as costantan, that may be is found in very thin foils; nickel alloy is better heat conductor.
Regenerator have to collect and yeld heat faster as possible. The speed of transfer is proportional to conductivity.
by Ferraccio
Fri Feb 03, 2012 1:39 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Displacer Thickness
Replies: 19
Views: 12349

Re: Displacer Thickness

imavad, Talking about "good techology level engine". This is my personal idea: for displacer is good stainless steel, has quite low heat transmission coefficient, and may be is found in thin plates. Except if found in very thin pipes I think is good 0.8 mm tick rolled plate, hand bended in...
by Ferraccio
Fri Feb 03, 2012 12:04 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: 200W Stirling Engine Help
Replies: 1
Views: 2957

Re: 200W Stirling Engine Help

Riz, Each has its own system to build the engine, depending on their capacity building, with their money, and fuel or other factor that want to use. The Stirling engine is extremely variable as the form and architecture. An example of the past, that gave exactly 220 W was the "Philips Bungalow ...
by Ferraccio
Tue Jan 31, 2012 7:13 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot engine
Replies: 16
Views: 11012

Re: Carnot engine

God in his infinite wisdom has placed a limit to the intelligence of men, but did not place limits to ignorance. It was exactly what I meant, "do not tell us". You want to explain how is the Carnot cycle (it is useless, you know it's already been thought of and described 200 years ago, and...
by Ferraccio
Sat Jan 28, 2012 2:33 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: ross yoke in excel
Replies: 10
Views: 8102

Re: ross yoke in excel

Understood thanks!
by Ferraccio
Tue Jan 24, 2012 1:21 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot engine
Replies: 16
Views: 11012

Re: Carnot engine

Welcome Serghiei, I honestly do not know which argument should be established. But you must not be worried, we have had already, (also recently) supporters of many strange ideas. If I understand you are a supporter of the Carnot cycle/engine: Is like claiming that the river water, usually down to th...
by Ferraccio
Fri Jan 13, 2012 5:49 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: ross yoke in excel
Replies: 10
Views: 8102

Re: ross yoke in excel

Ante excuse my bad english, I should be happy if you speack italian... About your "Andy Ross in Excel": I'm not so abile in excel as you are, but I've done a variation, with one arm reduced to zero, and the other dimension optimized in scope to have minimum horizontal displacement, (reduci...
by Ferraccio
Fri Jan 13, 2012 4:53 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: A new Stirling engine concept ?
Replies: 29
Views: 21528

Re: A new Stirling engine concept ?

In Italy we say: the mother of fools is always pregnant. Who makes claims about perpetual motion has at least limited knowledge of thermodynamics, which is like talking about motorcycles without knowing what are the wheels. If someone have knowledge of good reasons to oppose established laws of phys...
by Ferraccio
Sat Dec 31, 2011 4:12 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: High compression
Replies: 19
Views: 14703

Re: High compression

As you know this is the site of the Stirling engine. The Stirling engine is, first of all, an external combustion engine. This poses several problems and some advantages. The advantages are that the combustion is continuous , so potentially perfect, something that can not physically be in diesel eng...
by Ferraccio
Thu Dec 29, 2011 6:49 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: High compression
Replies: 19
Views: 14703

Re: High compression

As is obvious, always remember that any device, machine, engine, to be a successful invention should be substantially simpler than the existing one ...- Small complications are granted only in return for substantial large benefits. For the oil (vegetal) diesel alternative "low technology" ...
by Ferraccio
Wed Dec 21, 2011 10:01 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: High compression
Replies: 19
Views: 14703

Re: High compression

Camerart, 1) The design is your. But more complex is the solution more difficult become extract energy. 2) Pressurization means that engine is closed in a shell, or with devices (compressors) that maintain pressurization: all type of engines can be closed in a shell, or beared by a compressor. 3) To...
by Ferraccio
Thu Dec 08, 2011 10:53 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: beta engine design
Replies: 13
Views: 9265

Re: beta engine design

Speaking about a car (example a small city slow speed autobus or city car), a small (e.g. 3 kw pressurized engine) Stirling, may continuously supply power to a buffer system, increasing the batteries autonomy (the main part of time of a city car is stopped). The continuous combustion give the lower ...
by Ferraccio
Wed Dec 07, 2011 5:53 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: beta engine design
Replies: 13
Views: 9265

Re: beta engine design

Is really difficult that is simply a question of variable transmission. The engine do not bears variation on load; variation of load influences the engine rotation speed. If rotation speed goes over standard, the max yeld drops to minimum, and engine stops. May be is necessary a energy buffer also (...