Fast gas pumping, who knows?

[123]

I'm building an atmospheric setup for the base, but I'm not happy with the speed of filling the base with gas.

Right now I'm using a trick with a closed cube + powered vent and passive ventilation.
The pump is very slow, the trick described above is faster than the 6 turbo pumps.

There's an idea to break pipes, but I don't know if they work faster than passive ventilation.

Yes for filters I use chamber with pressure of 45 atmospheres to filter gases faster. So my deferential is 101kPa to 45 MPa.

Any other ideas?

[G-Man]

I'm not sure I understand your setup or where your problem is. Is the bottleneck with your passive vents? I'd suggest replacing them with active vents. Active vents are almost always the best choice when it comes to moving large amounts of gas between pipes and rooms. If you're set on using passive vents, try increasing the pressure and volume of the pipe network. Broken pipes, cowls, and passive vents all work the same, they equalize pressure between the grid and the pipe, what matters is the volume and pressure of the pipe network.

I can get into the specifics if you want. I've been meaning to write a guide on pumping gas effectively and which pumps/vents are good in different scenarios.

[123]

I have piping throughout the base that distributes the atmosphere evenly throughout the base, this piping leads to a cube that is pumped to 40 MPA from the cube goes to the filter inlet, from the filter to the desired tank, waste back to the base piping. And it works very slowly.

I can fill a large base with gas in a couple of minutes, through powered vent large + passive vents (they are closed in the cube), which are connected to the desired tank and the pipeline of the common base, where by controlling the inclusion of fans I create the desired composition of the atmosphere and pressure.

The problem is pumping the atmosphere from the base, it is very slow.

Maybe there's some cheater setup for the base atmosphere that will pump away a huge base in a couple minutes? Or just spam more filtration units?

I have an idea to create an extra buffer of gas mixture, and pump into it via large vents, without waiting for the filters to distribute the gases. But not sure

[G-Man]

I think I understand now. How big is that pipe network? The powered vent can move a lot of gas each tick. In outward mode with an input pressure of 100 kPa, you need about 900 L to keep up with an active vent and 5400 L for the big powered vent just to keep up the max flow rate (that's why adding a few inline tanks to your airlock speeds it up.) You'll have to use a bunch of in-line tanks since it has to be a single network. The vent can't "pull" through breaks in the network (valves, passive vents, etc.) due to the way the atmospheric simulation works, so you need a big pipe volume. There is an indicator LED on the vent that tells you what is restricting the flow, but I guess you cant see that since it's enclosed in a box.

You're using passive vents to go from room -> pipe and an active vent to go from pipe -> room. I wouldn't recommend that since you need a lot of volume to make it work. Using an active vent for room -> pipe is usually the best way since the input is now a grid which has 8000 L. Your setup should work if you increase the pipe volume like I said, but you might want to create a second pipe network just for filtration. Connect the filter pipe to each room with an inward facing active vent and then connect it to the input of the filtration unit. That way you can keep your passive vents for equalizing pressure and use the power of the active vents to easily pressurize your filtration input.

A single filtration unit at 60 MPa pressure differential can process about 80 mols per tick. You probably don't want to run it that high but it should give you an idea of how much a single filtration unit can handle. That might be plenty for some purposes or maybe you need several.

[123]

Active vent + pipe every room, active ventilation + pipes in each room, are best but noisy :)

I've been testing passive vent + powered vent to fill the base, fills up very quickly. I've tried turbo pumps, but in my case would need 20 units for only 1 type of gas. (Very power hungry, I gave up on it.)

My gas filing setup: Tank -> 1 cube room with passive vents + powered vent (out from tank) -> base atmos. (The fill rate is fine with me) (I use 1 cube as a buffer for hurricane protection so I don't get killed. :) )

Filtration setup: base air -> 1 cube sealed with large vents out and in -> spam of inline tanks 30k L at 45 MPa -> filters -> tanks (pumping out filtered gas to prevent pressurize output) and waste -> base air.
(This setup is ultra slow)

A single filtration unit at 60 MPa pressure differential can process about 80 mols per tick.

If I put a filter in a 60 MPa room and pump 120 into the pipe will it explode? I know the walls have a 200 kPa deferential, but the pipes? Filters are very slow, even with 80 mol / tick.

Yes, I have a large network of pipes about 30k L + in-line tanks this tanks for filters, and base pipe network around 100k L (I'll expand to 500k minimum)
https://steamcommunity.com/sharedfiles/filedetails/?id=3328169758

[G-Man]

Originally posted by Sayaka:

Active vent + pipe every room, active ventilation + pipes in each room, are best but noisy :)

That's something I though of when I was wondering why you went with the passive vents. Personally, I like the hum of the fan. I really like the idea of central air processing though, so I salute your efforts.

Originally posted by Sayaka:

If I put a filter in a 60 MPa room and pump 120 into the pipe will it explode? I know the walls have a 200 kPa deferential, but the pipes?

The pipes won't burst, they work off pressure difference between the inside and the room they're in. They also won't burst if you weld them completely into a frame. I don't know if the filtration will speed up accordingly or if it hits a limit, I've never tried it. It has a minimum rate of 4 mols and scales up linearly by about 1.3 mols per MPa of pressure difference.

[123]

Thanks you for help

I really like the idea of central air processing though, so I salute your efforts.

Air pipes connected to heat exchangers too, this way I maintain a normal temperature throughout the base
That dirty trick worked, I'll pump 1 gigapascal and I'll have normal filtration and not have to put a lot of filters.
https://steamcommunity.com/sharedfiles/filedetails/?id=3328218112

My idea is what to filter the central air system, instantly, while not creating pressure drops at the base so it's always 101 kPa.

As far as I know the whole pipe network gets % gas instantly without flowing from one section to another, this is the basis on which I want to do the dirty trick.

If I inject gas into the central system, it will instantly spread throughout the base.

I tested this on the volatiles detector which was at the other end of the base, and I let the gas in at the opposite end, in just 1 game tick the gas spread throughout the base.

The only regret is that you can not use digital valve, it separates the sections of the pipeline, but in the room with the furnace I have a fire detector :) and there in case of what happens depressurization of the room, so that the whole base is not burned, also closes the valve that supplies air throughout the base.

[123]

It works, the principle is simple, it exchanges 1 type of gas for another, at a rate equal to the filter pressure, in my case 65 mol sec for a room of 50 m3, exchanges for example 65 mol O2 to 65 mol N pressure does not change exactly 101.3, even too fast changes the gas, but for a large base speed will be reduced.

1 sealed cube 47 MPa -> filters, filters out1 -> bufer with power vent -> tank, filters out2 -> bufer with power vent sealed 1 cube buffer, buffer to -> 1 sealed cube 47 MPa, tank o2 -> base air / tank N -> base air (active vents 101.3), filters out2 -> sealed power vent 101.3 -> base air.

trash
https://steamcommunity.com/sharedfiles/filedetails/?id=3328801940