Who can talk about the storage and calculation problems?
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Everyone, please ask. Our company has 2 storage tanks for liquid oxygen and liquid nitrogen, each with a capacity of 400 cubic meters. The height of the inner tank is 9 meters, and the diameter of the base is 44.8; both are of the same size. How is it that 1 meter cubed of liquid oxygen occupies 45 cubic meters, while liquid nitrogen occupies 62 cubic meters? Is there a formula for this?
The 1 meter indicated on the level gauge does not represent the actual physical height of 1 meter in the tank; rather, it is a conversion based on water columns. The density of water is 1, that of liquid oxygen is 1.14, and the density of liquid nitrogen is 0.81. If you do the calculation, you’ll see that 1 meter of water column is equivalent to 1/0.81 meters of liquid nitrogen in terms of the height in the liquid nitrogen tank
Is there specific evidence to support this? Thank you~
I still can’t figure out how to calculate it for our 400-cubic-meter liquid nitrogen tank – if 1 meter corresponds to 62 cubic meters, could you explain it more clearly?
The actual geometric volume of a 400-specification container is definitely greater than 400; it’s around 400/0.95, or about 421. The height of the inner tank is 9 meters, though it’s not exactly 9 meters precisely. The values you mentioned – 45 for liquid oxygen and 62 for liquid nitrogen – are also not exact; they’re just estimates. The liquid level is determined using differential pressure transmitters, and usually the medium is assumed to be water for such calculations; this is how the level gauges in the factory’s storage tanks work. There’s another way to verify that what I’m saying is correct: 62/45 is approximately 1.38, and 1.14/0.81 is approximately 1.4. Please find more information regarding the exact height of the inner tank, its dimensions, and the thickness of its walls, and then use the method I described earlier to check whether the numbers match
What was said upstairs is great; the level gauge seen from the outside is the value after conversion
Go and check the manual for the storage tank; it usually contains the calculation sheets. Information such as heat loss, strength, and structure should all be included