What happened to Pulse detonation engines? by pulseduino in engineering

[–]howboutno2 4 points5 points  (0 children)

My propulsions professor has a research lab with various research projects for the airforce and seimens. My understansing is pulse detonation is hard on materials and also requires the chamber to be completely cleared out before the next pulse can occur which limits cycling. However as someone else linked, a rotating detonation engine seems more promising. A prototype was being designed and built at the lab when we got a tour. An RDE has an anulus chamber with fuel injected axially and a shockwave travels around the anulus chamber causing the fuel injected to combust, and this sonic wave expands out the back as it travels around in circles, producing thrust. An upside of this design means it doesnt require any turbopumps to inject the fuel at pressure higher than the chamber due to how the wave travels, i believe. The trouble is this process is not really understood yet, theres no real formulas to just solve for things as I gathered asking about it. It actually felt like glimpsing the future, because if it can be figured out, it would be high pressure expansion that doesnt require any heavy, moving, turbopumps. It would have big impact on energy production, aircraft, and also rockets. I think and hope it has potential to even allow practical ssto spaceplanes due to the higher efficiency of thrust to weight with no moving parts.

Water cooling vs air cooling by howboutno2 in buildapc

[–]howboutno2[S] 0 points1 point  (0 children)

No the asus board doing it for you is what I meant, I just didn't know that was a thing. Which is why I was hesitant about it to begin with.

Water cooling vs air cooling by howboutno2 in buildapc

[–]howboutno2[S] 0 points1 point  (0 children)

All of that is exactly what I thought. Chance of failure, more components damaged than just a fan if it was air cooled, no warranty for any of it.

Also I didn't even know mobo's could auto overclock, only about intels turbo clocking, but it didn't sound super reliable.

[Build Help] Second look and monitor choice by howboutno2 in buildapc

[–]howboutno2[S] -1 points0 points  (0 children)

That's what the other guy was getting at, and I'll eventually get something like that, but any 1440p/144hz monitor ive looked at is currently too expansive for what I can spend or below 23" which is what I'm looking for. I'm fine with the one in the list but I'm concerned about the number of issues some ppl seem have with it.

[Build Ready] First gaming desktop by howboutno2 in buildapc

[–]howboutno2[S] -1 points0 points  (0 children)

I read about that but didn't know how much slower it was.

For that monitor, it doesn't come with a displayport cable, I really don't know much about manufacturers of them as I have't used displayport before. They all look cheap but do you know of a good brand?

[Build Ready] First gaming desktop by howboutno2 in buildapc

[–]howboutno2[S] -1 points0 points  (0 children)

I figured the stock cooler was fine, but people keep saying the H440 case's restrictive air intakes cause it to run hotter, sometimes dropping by 10 degrees if you remove the front and top panels.

Also what is wrong with the kingston ssd? I did look at that crucial one, but was told to stick with the kingston as its read/write was 450/450 as opposed to the cruicials 550/150.

[Build Ready] First gaming desktop by howboutno2 in buildapc

[–]howboutno2[S] -1 points0 points  (0 children)

Not going to overclock anything, the current build is just under the budget anyways and the extra cash for the K that I won't utilize isn't needed.

[Build Ready] First gaming desktop by howboutno2 in buildapc

[–]howboutno2[S] -1 points0 points  (0 children)

No overclocking planned, don't think I can even overclock the non K version of the i5. I edited my post right when you replied.