CO2 Rockets expel hot oxygen

Radbolt engines expel heat too. I think that has always been the case, but I'm just bringing this up to check if it's intentional.

All engines produce heat in a 9x3 tiles below the rocket (https://oxygennotincluded.fandom.com/wiki/Rocketry_(Spaced_Out)), the carbon dioxide engine will expel carbon dioxide will launching and landing but will also heat up everything including gasses in a 9x3 block grid below the center of the rocket engine. Looking at your screenshots i think it's just the gasses that have been heated by the rocket. Try to launch a rocket and look at the gas trail it leafs it should be carbon dioxide.

Edited April 11, 2024 by Upload

But what kind of sense is it supposed to make? When CO2 expands, it should cool down, if anything. There is no combustion taking place, and gasses are supposed to cool down when adiabatically expanding.

ONI doesn't implement the relationship between temperature and pressure that the real world has. Otherwise infinite storage would be ridiculous sources of power (right up until they melted their way out of their containment, that is). Gas and liquid can be compressed or decompressed as much as you like without the temperature changing.

CO2 engines produce exhaust at a set temperature, regardless of input temperature (as do steam rockets), and every rocket, when launching, produces a heat cone in a 9h x 3w column that goes through all materials and injects the heat directly into them. The heat cone is what's producing your hot oxygen, the co2 isn't going through your wall.

The solution is to ensure your rockets have 9 tiles of clearance below them where you don't care if they heat up, or is just straight vacuum.

On 4/15/2024 at 6:33 AM, SlugTamer said:

But what kind of sense is it supposed to make? When CO2 expands, it should cool down, if anything. There is no combustion taking place, and gasses are supposed to cool down when adiabatically expanding.

ONI is not simulating Physics. Its simulation core is somewhat inspired by basic, simple Physics, but a lot of things are missing or simplified. Allows a (relatively) smooth experience on a relatively large map. Otherwise things would get excessively slow. 

It's not about simulating physics "not accurately enough" due to efficiency considerations. It is simulating a process that should not happen: CO2 does not heat up as it expands. Solution to the problem is simple: don't add heat as CO2 rockets take off or land.

On 7/18/2024 at 10:56 AM, SlugTamer said:

It's not about simulating physics "not accurately enough" due to efficiency considerations. It is simulating a process that should not happen: CO2 does not heat up as it expands. Solution to the problem is simple: don't add heat as CO2 rockets take off or land.

And genetic ooze duplicants shooting laser beam guns at alien space critters don't exist either. They don't happen in real life. Should they be removed too?

The list of ONI things that are completely wrong wrt real physics is very long and every now and then we get a random player who has a specific knowledge in one specific area (here it's thermodynamics) and they complain that a video game doesn't work just like law X they have learned in their undergrad course and how it should then be changed immediately.

So yeah, if that is shocking to you, there's plenty more coming up your way. Best advice i can give you is to not expect the game to follow whatever laws of physics you know, and learn to discover how ONI laws are and how to use them to your advantage.

Edited July 19, 2024 by NeoDeusMachina

Duplicants are made of genetic ooze because they're printed from cloning pods. They shoot lasers because that's a useful game abstraction. Alien critters exist because of game lore reasons. CO2 rockets expel heat because somebody forgot to turn it off in the game code.

Edited July 25, 2024 by SlugTamer