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Heavy Gas
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Type: Mod
File Size
Posted
Updated
759.287 KB
Jan 22, 2023 @ 4:21am
Jan 22, 2023 @ 8:41am
3 Change Notes ( view )
Created by
nevcairiel
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Heavy Gas

Description
Gas-tronomical Realism

This mod adds mass to gases - in an accurate fashion. This gives meaning to the rocket equation as your ship gets lighter as you lift off in gravity and burn fuel, adding just a bit of complexity and forethought back into fuel management.

It is a spiritual successor to "Gases with Masses", although re-designed from the ground up with accurate mass distribution.

Accurate?

Oxygen and Hydrogen have different mass, a fact that has to be taken into account when giving mass to the gases in Space Engineers. And of course we want to conserve mass, as the law of conservation of mass dictates.

If you process 1000kg of Ice, you should expect the resulting gas to also have a mass of 1000kg - that is of course, if you capture both the Oxygen and the Hydrogen.

1000kg of Ice process into 888.9kg of Oxygen and 111.1kg of Hydrogen, as their atomic mass and the composition of water ice dictates.

Features

Hydrogen and Oxygen tanks, vanilla and modded, large and small, will have mass added corresponding to their fill-state. The tanks are otherwise entirely unmodified, their inventory can still be used and bottles still be filled.

By default, the extra mass will not be applied to NPC-owned grids. An option is available to turn it on for NPCs as well if so desired.

And that is all.

Credits

Thanks to comfyfutons and "Gasses with Masses" for inspiration to work on this mod.
78 Comments
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da britian May 9 @ 1:21am 
Okie Doke, thanks for the clarification.
nevcairiel  [author] May 8 @ 3:59pm 
The mod should automatically work with any O2 and H2 tanks, no matter their size or origin.
da britian May 8 @ 3:52pm 
Got any plans to update the new O2 & H2 tanks? Including the DLC & small grid small oxygen tank?
nevcairiel  [author] Sep 2, 2024 @ 10:28pm 
My mass settings are based on preserving the mass of the ice when processing it, which these values are the only ones that achieve that without modifying H2/O2 generators. You can assign any density to the gas based on their presumed pressure in the tanks.
Uzar Apr 25, 2024 @ 5:13am 
Hi nevcairiel, thank you very much for this mod! Adds more realism and forces you to think about how you build your gas haulers.

On another note, would you be willing to provide an additional mod for the IO gases (Gasoline, RocketFuel, Steam and Deuterium)? Happy to send you the adjusted code.
Or would you be OK with me uploading a separate mod (based on your code but for adjusting said values) myself?
Darian Stephens Mar 20, 2024 @ 5:00am 
How does this interact with the Zeppelin Gas Cell mod?
That's technically a hydrogen tank, but it's meant to float based on the hydrogen inside.
Is there an exception for this mod, or will the lift counteract the weight enough, or what?
Hage Maoh Mar 11, 2024 @ 9:47pm 
Any chance you can add an XML config file for this? I like the basic features, but want to be able to rebalance gas masses
nevcairiel  [author] Jan 20, 2024 @ 1:42am 
For H2, its 0.011kg per liter, for Oxygen its 0.178kg
Zen_Man Jan 20, 2024 @ 1:36am 
I am too stupid to calculate gravity acceleration into mass so I just tested H2 mass in a tank on Pertam (g = 1,2). Dividing mass change by litre change. Its 0,0162 Kg per Litr.

Can anyone correct me please if I am wrong?
nevcairiel  [author] Jan 20, 2024 @ 12:18am 
@kinngrimm
From reading the description it should be fine.