First SPOM(Self Powered Oxygen Maker)

Nice SPOM(Self Powered Oxygen Maker) - first I created, quite pleased with it, sharing it here.

INPUTS: WATER/(INITIAL POWER TO GET STARTED)
OUTPUTS: OXYGEN/HYDROGEN/POWER

Creates Oxygen and Power with Water Input. Enough power is generated for a water pump(to feed the device) + some extra.

Could be improved to a V2 with power station and one access point for dupes with nice decor etc.

Glass tiles are used so the design can be easily seen in practice cheap tiles should be used of course.

INTRODUCTION

This SPOM takes water and produces Oxygen and Power(and Hydrogen eventually if excess power is not used).

It is fully self-sustaining with hydrogen from the electrolysis fully powering the device.

This is done by having an advanced design filtration system to remove the oxygen from the flow such that a costly filter(at 120 W) is not needed.

Automation logic is in place to stop the pumping if the oxygen output buffer is backed up, and to resume when it is clear. This is to stop the hydrogen generator being damaged by wrong element, and in general to stop the device when it is not being used.

Automation logic is in place to open the device to the power grid when the excess power in the batteries reaches a certain level, and to close it again later. This allows the SPOM to contribute it's excess power to your base's power grid without worrying about it being sucked dry or damaged by base-wide low power events and having to be re-initialised. Once switched on and as long as it has enough water it will always work.

WATER SYSTEM

Very simple so just get it done first, water is pumped into the electrolyser, nothing complex there. Just a basic water input. Only clean water can be used.

If water is input at greater than 19.45 Deg C the device will generate a net heat deletion.
if water is input at less than 19.45 Deg C the device will generate a net heat increase.

ELECTRICAL SYSTEM

Electrical system is pretty basic with some automation to help it along.
2 Batteries as we need 2 signal outputs, one for out hydrogen generator to keep the batteries topped up, the other to send a signal to allow the SPOM to contribute to base power. There is a circuit breaker attached to this battery. Level can be configured but I set it to 75%.

GAS SYSTEM

First there is the hydrogen system. H2 bypasses the oxygen filter and goes to it's storage tank where it then powers the H2 generator. H2 WILL ACCUMULATE unless SPOM excess power is being used by the base which is why the storage tank and overflow valve are there. In this design H2 overflow is just vented, though in a real design it can be put somewhere useful.

Oxygen system really is in a few parts.
1. There is the filter which takes the oxygen out as it goes past, uses the beautiful power-free filter trick, which does have some drawbacks over a powered filter in that it will not stop oxygen progressing(in this case onto the H2 generator) if the receiving end is backed up. We solve this in:

2. Oxygen shutoff mechanism, if the oxygen is backed up and flows through the backup pipe, the oxygen gas sensor will trigger. This stops the pump from working until the backup is over(second sensor). There is also an atmospheric sensor that is AND gated with this system so that the system shuts off if water is no longer available. Makes the whole thing fully self-contained and requiring no Dupe operation.

3. Storage and backup. Large storage tank as a buffer, very useful as we dont want temporary disruptions in O2 consumer demand to trigger the shutoff mechanism(above), which is a risk without this gas tank. Does job of any other capacitor otherwise, good to have things like this in a lot of places of course.

CONCLUSION

So I am pretty happy with this, especially as a first try(for me) of a SPOM design.

Some improvements I can see already, most notably I would like a power station there and some pretty things for the dupes to operate it, and that being only place in SPOM they need to go.

Most likely some other things too as time goes on.

I do hope this design is useful/inspiring to someone.

Gavin786

[BeauKnowsX]

I tried making this design in the new cs-437751 oxygen not included, and the design didn't work, but I changed it to be better, and actually can gauge the efficiency using the ATMO sensor, I can decide if it produces power or uses power for production purposes.

[finian826]

This is a nice design, but hard to follow what is below all the logic parts. If they were place to their own area it would be a bit easier to read what is beneath them.

[JthePK]

i like the design but cant help walk away with a feeling this might be a little over engineered and could be much simpler. oh well it looks nice with the glass.

[Gavin786]

@bOred - there is a gas filter there, its called a mechanical filter because it works without using any power and uses the properties of how packets flow over pipes. It is one of the top desings any Oni player aught learn - will serve well in pretty much any place you want a filter "real" filter has only limited use case. Only negative of mechanical filter is that it will fail if it receives 1000 full packets in a row or if the receive(filter) end is blocked; so in those cases its not a guaranteed filter unlike the powered filter which is 100% guaranteed. If you can live with that or design so its not a problem, it is much the best and I dont think this would be able to be made self-powering without it. If there were only 3 techniques to learn, it would be mechanical filter, aquatuner bypass, and proper pipe mechanics.

[bOred]

How does this work without gas filter to separate hydrogen and oxygen?

[ttt1thompson]

One thing I would definitely change is adding a second gas pump, right now your setup is running at half potential due to only having one

[Gavin786]

Ok, I will make a video on it. Stay posted.

[The Bow Guy]

mind releasing your save file or doing a video on it?

[Gavin786]

Also, I seem to be getting a lot of ppl looking at this design, so older and wiser, I would change it in at least one regard:

The water input to the electrolyser, I would feed it around the top where the hydrogen generator + batteries are with radiant liquid pipes before I put it into the electrolyser. This just gets rid of any heat the hydrogen generator/batteries make; with this design it likely will build up, and be a problem at a later point. This building should not require any external cooling, that change will solve any heat issues.

[Gavin786]

@Siren Head,

Sorry the automation graphics changed in a recent update, this is the old automation graphics, so its probably not clear what things are now.

The one with a triangle and circle on the end is a "NOT" gate.(2 squares)
The one on the right(4 squares) with the thing kind of like a rectangle rounded on one end is a "AND" gate.
The one in the middle is a memory toggle.
Purpose of the big circuit is to automatically shut off the gas pump if there is a backup(no more can be received on oxygen side), and to re-enable when clear.
The other one's purpose is to share power with the base when it is excess, and to stop sharing when power gets low.