AngledLuffa wrote: ↑Sat Dec 30, 2023 7:21 am
A base level tank car fills up with 25,000 fluid.
What kind of car is this ? In factorio car have 80 inventory slot, barrel contain 50 fluid, and stack by 10, so you can have 80*10*50 = 400 000 fluids in a car. But then if you get 200 liter of oil from that 1 fish and you can put 80 stack of 100 fish on the car. That means the car can contain 8000 fish, or 1 600 000 liter of oil under the form of fish. So i suppose fish are more dense than oil. And it's not really a squishing but more an expansion of the fish, with some sort of dilution that somehow yield more oil than the initial volume of fish.
This or the barrel are very thick. A car would contain 800 barrel, and just the barrel would represent the equivalent of the 1 200 000 fluid missing. This would mean that 800 barrel = 1200000 liter , or that 1 barrel is about 1500 liter worth of volume like the metal around the fluid supposed to be contained. That would be very bad given the barrel contain only 50 liter of fluid. But that's necessary to balance out the math so that a car with 8000 barrel of oil would contain as much "liter" than 8000 fish. Now it is also possible that fish when put in a car can be packed more densely than barrels, and than barrel are not 1500 liter but just "waste" space due to their cylindrical shape. In order to know how much volume is "wasted" when counting it filled with solid cylinder rather than "compressed goo of fish", it would be required to know the shape of the car designed to hold barrels or fish. this leads to a dead end.
Still , i think if you get 200 liter of oil from a fish,and assuming there is no expansion, the fish is quite big, if you approximate the density of 1 fish to the density of water it would be a 200 kg fish, that would be 200 000 cubic centimeter. That roughly the volume of a cube whose edges are the cubic root of 200 000. Which is around 58 centimeters. That would also be the same size of a fish that weights the same as 2 large human. According to this video
https://www.youtube.com/watch?v=7ZodElWH6Qk , that would make it around the size of a pirahna if it was a cube, more like a pufferfish for the minimum size, and around or smaller than the size of a bottlenose dolphin regarding the weight of fish that is akin to 200 kg.
Now , because you can put 8000 of those in the car, and 8000*200 000 is 1.6 billion cubic centimeter that would represent a bloc of around 11 meters on each side. That's a big car, more like a truck that has this carrying capacity. Now of course if the fish is more dense than water, and expand upon squishing to oil, then the car could be of smaller dimension. But that woud still represent a car that is able to carry 400 or 1600 tons worth of fish/oil. You wouldn't pack 8000 dolphin in a 11m cube, in real life it would seem fish are not as dense as water.
Lastly , one can argue that 1L of water in real life would require around 4200 joules to gain 1°C temperature when at 15°C, and around , but in factorio game 1 unit of water need 200 joules to gain 1 degree which is just 4.7% of 4200 joules. That would indicate that 1 fluid is less than 1 liter. But also in real life it's not always the same quantity of energy require to heat 1 liter of water by 1 degree depending on the temperature of water and room temperature whereas it is in factorio, because it's a game and there are some simplifications , or things that do not quite match when trying to math everything. Like the volume of the fish. It depend from where you look at it.
It's a weird kind of fish if you imagine a 58 cm cube, that is weighting 200 kg and the number the engineer can eat in a minute. If we were to compare that to how much stuff humans can eat in a minute it would yield very different approximations, but also not my kind of research i'm afraid