Search found 421 matches

by ace_fedde
Sun Jun 07, 2009 2:15 pm
Forum: Valveless pulsejet forum
Topic: A pressurized environment for the PJ
Replies: 85
Views: 16921

Re: A pressurized environment for the PJ

While I’m hoping that somebody is going to show me how to adapt a PJ to 4 atm, I’ll make a little side jump (or jump forward) from: How to: 4 atm PJ, to: How to: 4 atm environment for the PJ. Simply putting the PJ in a pressurized tank doesn’t work. It will pollute it’s own fresh air till there’s no...
by ace_fedde
Sun Jun 07, 2009 11:19 am
Forum: Unconventional, Multi-Mode and Hybrid Jets
Topic: Turbines driven by pulse jets
Replies: 42
Views: 20380

Turbines driven by pulse jets, now proven!

Turbines driven by pulse jets, now proven!
http://www.youtube.com/watch?v=DVHJ3qhtVfw
:lol: :lol: :lol:
Thanks Mark (for the find)

Fedde
by ace_fedde
Sun Jun 07, 2009 9:31 am
Forum: Valveless pulsejet forum
Topic: A pressurized environment for the PJ
Replies: 85
Views: 16921

Re: A pressurized environment for the PJ

What about the following idea? To be honest I really haven’t got a clue… For 4 atm. First scale your PJ up, with the normal scaling values, for having it handling 4 times the airmass compared to the original. Then “zoom” it back to the original length (with equal scaling values) for the 4 atm enviro...
by ace_fedde
Sat Jun 06, 2009 8:11 pm
Forum: Valveless pulsejet forum
Topic: A pressurized environment for the PJ
Replies: 85
Views: 16921

Re: A pressurized environment for the PJ

And I was thinking, man, Metiz is online all the time. What's he doing? (no smiley)
by ace_fedde
Sat Jun 06, 2009 7:58 pm
Forum: Tools and Construction
Topic: Fuels: Cracking and gassifying
Replies: 10
Views: 3731

Re: Fuels: Cracking and gassifying

Viv, Before I started posting I read my “Shell Petroleum Handbook” and I read it again (the capitals about cracking only) And the dissolved oxygen in the fuel will do what? heat + fuel + oxygen =? Of course there will be some oxidation but I think (I don’t claim) there is no carbonisation through ox...
by ace_fedde
Sat Jun 06, 2009 7:21 pm
Forum: Valveless pulsejet forum
Topic: Calculating top speed on ice...
Replies: 575
Views: 95100

Re: Calculating top speed on ice...

I thougt it's better not to go to the above mentioned thread but to make a whole new thread in the Tools section:
viewtopic.php?f=7&t=5378
Fedde
by ace_fedde
Sat Jun 06, 2009 7:15 pm
Forum: Tools and Construction
Topic: Fuels: Cracking and gassifying
Replies: 10
Views: 3731

Re: Fuels: Cracking and gassifying

Coming from: http://www.pulse-jets.com/phpbb3/viewtopic.php?f=3&t=5229&start=210#p63413 Hi Johansson The amount of heat from that suggested coil arrangement for diesel at your kind of flow rates could be an issue, the available heat conduction rate of the CC wall to Copper may leave you short, the a...
by ace_fedde
Sat Jun 06, 2009 7:13 pm
Forum: Tools and Construction
Topic: Fuels: Cracking and gassifying
Replies: 10
Views: 3731

Fuels: Cracking and gassifying

Coming from: http://www.pulse-jets.com/phpbb3/viewtopic.php?f=3&t=5346 later I'll explain the proces of cracking and gassifying :D Fedde Cracking oil: Imagine (thin) glass tubes with a dia of 1" and different lengths. Now place a tube of 4 inches long horizontally in your hand and move your hand vio...
by ace_fedde
Sat Jun 06, 2009 7:10 pm
Forum: Valveless pulsejet forum
Topic: Gassifier Gas?
Replies: 16
Views: 4580

Re: Gassifier Gas?

Gone to:
by ace_fedde
Sat Jun 06, 2009 6:56 pm
Forum: Valveless pulsejet forum
Topic: Calculating top speed on ice...
Replies: 575
Views: 95100

Re: Calculating top speed on ice...

Viv,
Let's stay on topic and go to: :lol: :lol: :lol:
viewtopic.php?f=3&t=5346#p63285

Fedde
by ace_fedde
Sat Jun 06, 2009 6:47 pm
Forum: Valveless pulsejet forum
Topic: A pressurized environment for the PJ
Replies: 85
Views: 16921

Re: A pressurized environment for the PJ

So! struggling to stay on topic even though its my own fault for suggesting what turned in to the distraction ;-) :lol: :lol: :wink: The answer to Metiz would be yes! I suppose every thing does get faster and hotter with all that it implies to the engines geometry ;-) Viv Now I hope there's somebod...
by ace_fedde
Sat Jun 06, 2009 6:13 pm
Forum: Valveless pulsejet forum
Topic: Calculating top speed on ice...
Replies: 575
Views: 95100

Re: Calculating top speed on ice...

Viv wrote:it will oxidize in the coil and form coke
Viv,

It's the cracking, due to to high temperatures, that causes coke to form.
viewtopic.php?f=3&t=5346#p63285
Water (steam) is even added in cracking installations to prevent carbonisation.

Fedde
by ace_fedde
Sat Jun 06, 2009 3:16 pm
Forum: Tools and Construction
Topic: NUDiS
Replies: 50
Views: 49353

Re: NUDiS

Metiz, Couldn't get it to do what you want it to (understandable) or can't get it to work period? Can't get it to work period. Exactly like Leo describes in the Tools and Construction Forum in the Nudis thread. Same alarms, same solutions tried, no result. Might have to do with me (like Leo) using ...
by ace_fedde
Sat Jun 06, 2009 3:12 pm
Forum: Valveless pulsejet forum
Topic: A pressurized environment for the PJ
Replies: 85
Views: 16921

Re: A pressurized environment for the PJ

It still doesn't work.
Let's move this part of the conversation to the NUDiS thread in Tools and Construction.
viewtopic.php?f=7&t=3588&p=63407#p63407

Fedde