What is the pressure at which the electrolyzer stops working?

[MoKuS]

So, I built my old setup of hydrogen generator, this time I am using automation to make sure that the electrolyzer is off when the pressure is so high and the air pump is off when the pressure is so low. So I was wondering about the pressure that the electrolyzer stops working about that. I also was wondering if you have any suggestions about the automation of the gas pump. Please find my setup in here: https://imgur.com/a/4jPYJmY

[Aranador]

Well, I dont know the exact answers to your questions, but I would usually set my hydrogen pressure sensor to about 500, just so that the gas pump sucks in full gulps. As for the electrolyser, since it effectively 'turns itself off' at overpressure, I just let it do that. Before anyone else can tell you your design is 'bad', I will tell you why though. Your set up does not have a neato way of causing the O2 and H2 to consistantly split, probably why you have had to include the filter in your set up. There are ways to ensure that only H2 get to your pump, and doing this significantly helps your design. I'll leave it to you to decide if you want to look into those options - I myself do not overly bother with getting too fancy either, although I do use a cutesy gas filter trick for zero power filtering.

[Angpaur]

Originally posted by Aranador:

Well, I dont know the exact answers to your questions, but I would usually set my hydrogen pressure sensor to about 500, just so that the gas pump sucks in full gulps.

Pump will suck full packets when pressure is above 100g. Of course it is not suggested to go that low on sensor settings, but you don't have to set it to 500.

Regarding electrolyzer overpressure - it follows general rule, like many other buildings, of 1800g max pressure.

[MoKuS]

Originally posted by Aranador:

Well, I dont know the exact answers to your questions, but I would usually set my hydrogen pressure sensor to about 500, just so that the gas pump sucks in full gulps. As for the electrolyser, since it effectively 'turns itself off' at overpressure, I just let it do that. Before anyone else can tell you your design is 'bad', I will tell you why though. Your set up does not have a neato way of causing the O2 and H2 to consistantly split, probably why you have had to include the filter in your set up. There are ways to ensure that only H2 get to your pump, and doing this significantly helps your design. I'll leave it to you to decide if you want to look into those options - I myself do not overly bother with getting too fancy either, although I do use a cutesy gas filter trick for zero power filtering.

Can I see your setup? Electrolyze stops working at 1800 g so it needs a sensor as well to turn it off when the pressure is higher than 1800. I also think that your sensor for the gas pump is also set very low. The reason for that is that the difference between the pressure at the sensor point and the gas pump. Basically your gas pump pumps very little gas because the pressure in the gas pump area is much smaller than the pressure in the sensor area.

[MoKuS]

Originally posted by Angpaur:

Originally posted by Aranador:

Well, I dont know the exact answers to your questions, but I would usually set my hydrogen pressure sensor to about 500, just so that the gas pump sucks in full gulps.

Pump will suck full packets when pressure is above 100g. Of course it is not suggested to go that low on sensor settings, but you don't have to set it to 500.

Regarding electrolyzer overpressure - it follows general rule, like many other buildings, of 1800g max pressure.

Thanks for info.

[MoKuS]

So here is my new setup: https://imgur.com/a/7wI8sPM It has two sensors one is connected to the gas pump and the gas filter and another is connected to the electrolyzer. I set the pressure of the first sensor in 1550 and the second one in 1600. The setup is almost self-sustain. I share it with you so perhaps you can come with a better combo.

[gimmethegepgun]

Originally posted by MoKuS:

Electrolyze stops working at 1800 g so it needs a sensor as well to turn it off when the pressure is higher than 1800.

The fact that it stops working at 1800 is exactly the reason it doesn't need a sensor. It will turn off without a sensor on its own.

I also think that your sensor for the gas pump is also set very low. The reason for that is that the difference between the pressure at the sensor point and the gas pump. Basically your gas pump pumps very little gas because the pressure in the gas pump area is much smaller than the pressure in the sensor area.

If the sensor is close to the pump it won't be very much different.

[gimmethegepgun]

Originally posted by MoKuS:

https://imgur.com/a/7wI8sPM

At a glance that design is very problematic. Hydrogen will go to the top while oxygen will stay lower, so it will have a lot of trouble sucking out the oxygen so that the electrolyzer can actually reactivate. Also, getting enough of the hydrogen out so that the pump will start pulling oxygen will make the pump run quite inefficiently as it pulls very small amounts of hydrogen.

[Angpaur]

Originally posted by MoKuS:

I share it with you so perhaps you can come with a better combo.

I believe this was done long, long time ago.
There are plenty good electrolyzer setups out there.

[Angpaur]

Originally posted by gimmethegepgun:

Also, getting enough of the hydrogen out so that the pump will start pulling oxygen will make the pump run quite inefficiently as it pulls very small amounts of hydrogen.

This is absolutely not true that it will be inefficent - pump has own storage and it compensates with bigger packets when sucking 2 different gases. In such scenario you can see a 200g or 300g packet of hydrogen to be followed by 700g or even 800g packet of oxygen. Like on this screenshot:
https://steamcommunity.com/sharedfiles/filedetails/?id=1940594080

[MoKuS]

Originally posted by gimmethegepgun:

Originally posted by MoKuS:

Electrolyze stops working at 1800 g so it needs a sensor as well to turn it off when the pressure is higher than 1800.

The fact that it stops working at 1800 is exactly the reason it doesn't need a sensor. It will turn off without a sensor on its own.

Are you sure that the electrolyzer does not consume electricity when the pressure is so high? Why it has automation then?

Originally posted by gimmethegepgun:

I also think that your sensor for the gas pump is also set very low. The reason for that is that the difference between the pressure at the sensor point and the gas pump. Basically your gas pump pumps very little gas because the pressure in the gas pump area is much smaller than the pressure in the sensor area.

If the sensor is close to the pump it won't be very much different.

It takes time that the pressure in the pump area becomes close to the sensor area. The pressure in these two areas could be very different.

[gimmethegepgun]

Originally posted by MoKuS:

Originally posted by gimmethegepgun:

The fact that it stops working at 1800 is exactly the reason it doesn't need a sensor. It will turn off without a sensor on its own.

Are you sure that the electrolyzer does not consume electricity when the pressure is so high? Why it has automation then?

Yes, I'm sure.
It has automation because you may have some use for a non-standard behavior with it.

Originally posted by gimmethegepgun:

If the sensor is close to the pump it won't be very much different.

It takes time that the pressure in the pump area becomes close to the sensor area. The pressure in these two areas could be very different.

If the sensor is right next to the pump then it won't be very far off from what the pump is. Yes, there will be some difference, but does it matter? And if it does matter, then you can adjust the sensor settings until the stabilization point over the pump reaches your ideal settings.

[MoKuS]

Originally posted by Angpaur:

Originally posted by MoKuS:

I share it with you so perhaps you can come with a better combo.

I believe this was done long, long time ago.
There are plenty good electrolyzer setups out there.

Do you have the screenshot of some good hydrogen generator setup?

[MoKuS]

Originally posted by gimmethegepgun:

Originally posted by MoKuS:

Are you sure that the electrolyzer does not consume electricity when the pressure is so high? Why it has automation then?

Yes, I'm sure.
It has automation because you may have some use for a non-standard behavior with it.

It takes time that the pressure in the pump area becomes close to the sensor area. The pressure in these two areas could be very different.

If the sensor is right next to the pump then it won't be very far off from what the pump is. Yes, there will be some difference, but does it matter? And if it does matter, then you can adjust the sensor settings until the stabilization point over the pump reaches your ideal settings.

Ok. Thanks.

[Angpaur]

Originally posted by MoKuS:

Do you have the screenshot of some good hydrogen generator setup?

This is my favorite one, which I've been using in my recent 3 colonies:
https://steamcommunity.com/sharedfiles/filedetails/?id=2112409888
https://steamcommunity.com/sharedfiles/filedetails/?id=2112409831

[madcow]

Originally posted by Angpaur:

Originally posted by MoKuS:

Do you have the screenshot of some good hydrogen generator setup?

This is my favorite one, which I've been using in my recent 3 colonies:
https://steamcommunity.com/sharedfiles/filedetails/?id=2112409888
https://steamcommunity.com/sharedfiles/filedetails/?id=2112409831

I like it, one less gas pump than the usual config we see for that and without the atmo sensors to regulate the pumps to sort the gases.

How's the output? I'm thinking this setup grabs 500g of gas more frequently and consistently and that this means it's producing more output due to electolyzers pausing less. How close does it get to supporting the theoretical 17.76 Dupes that a 2-electrolyzer setup can support (on paper)?