Search found 1324 matches

by Dennis P Brown
Mon Apr 13, 2020 7:33 pm
Forum: Vacuum Technology (& FAQs)
Topic: First ever Turbo experience
Replies: 38
Views: 6501

Re: First ever Turbo experience

Fans do help extent bearing life on turbos; considering how expensive most turbo's are, a rather good idea to add a fan.
by Dennis P Brown
Fri Apr 10, 2020 9:38 am
Forum: Images du Jour
Topic: Jim Kovalchick -My attempt at smaller fusor
Replies: 86
Views: 8411

Re: Jim Kovalchick -My attempt at smaller fusor

Hello and glad you posted your results on your fusor. Your work has been excellent. I apologize if you think I am "casting stones". I did not intend this. I too built such a small volume device (though, didn't have the success you achieved.) Again, your experimental work is very good and do stay at ...
by Dennis P Brown
Thu Apr 09, 2020 7:51 pm
Forum: Images du Jour
Topic: Jim Kovalchick -My attempt at smaller fusor
Replies: 86
Views: 8411

Re: Jim Kovalchick -My attempt at smaller fusor

I've posted in two other threads on this topic today, which makes me think that the implications of my previous work wasn't fully understood. What I am posting and trying to make clear now is that the dominate effect of a "small" chamber isn't its size (volume) so much as its higher operating deuter...
by Dennis P Brown
Thu Apr 09, 2020 2:17 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Density of a plasma
Replies: 9
Views: 1338

Re: Density of a plasma

I just posted on this topic in the "Fusor construction" forum. I'll simply repost this main part and add a bit: Getting a greater neutron count for identical plasma energy isn't a function of chamber size itself but rather the greater operating pressure one can then create using the identical wattag...
by Dennis P Brown
Thu Apr 09, 2020 1:45 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor V construction - the process long running
Replies: 44
Views: 5606

Re: Fusor V construction - the process long running

I looked into this issue of "smaller" chamber size some time ago and posted the results here in the forum - now, what I mean by smaller chamber wasn't my building a actual smaller chamber but rather (and this is the key) creating a smaller grounding grid. That is, rather then my larger volume chambe...
by Dennis P Brown
Tue Mar 31, 2020 11:13 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 8888

Re: Coronavirus pandemic

Thank you all for these informative posts as well as this thread on this serious illness! This country desperately needs testing kits - unbelievable that the most powerful country in the world can't provide everyone who needs it a test - words are beyond me. The lost months were absolutely critical ...
by Dennis P Brown
Tue Mar 31, 2020 10:50 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Update on experiment
Replies: 20
Views: 2885

Re: Update on experiment

Glad your still working towards your goal. That shows commitment; however, with vacuum systems and leaks, one must also accept that there is a reason people use professional chambers, connections and vacuum pumps - saves vast amounts of time and efforts while finally allowing one to reach their desi...
by Dennis P Brown
Tue Mar 31, 2020 10:36 am
Forum: Vacuum Technology (& FAQs)
Topic: Leak in vacuum system (diffusion pump?)
Replies: 12
Views: 974

Re: Leak in vacuum system (diffusion pump?)

While excess volume isn't desirable, the real killer for any system is the number and size of connections! This is where 99.9% of all leaks occur. Making good connections isn't always easy and leak checking is essential and not always easy; and even then, very minor leaks can occur (a damaged surfac...
by Dennis P Brown
Fri Mar 13, 2020 1:09 pm
Forum: Images du Jour
Topic: Loads on roads
Replies: 8
Views: 2289

Re: Loads on roads

That liquid hydrogen is so "fluffy" is exactly why it was not used to fuel the first stage of the Saturn V rocket; that used kerosene (and, of course, LOX.) This enabled the Sat V to climb out of the earth's gravity well somewhat faster (due to greater Impulse due to kerosene's far greater density) ...
by Dennis P Brown
Thu Mar 05, 2020 12:28 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor V construction - the process long running
Replies: 44
Views: 5606

Re: Fusor V construction - the process long running

Good work! You have my exact same turbo; I say this because after I added turbo bearing oil to my wick, it then took hours of pump down and heating of the unit to get all the water and other stuff out. Maybe your case, maybe not.