For liquids that are easy to vaporize or evaporate, such as liquid nitrogen, LNG, and sulfuric acid, how are their standard cubic volumes converted into regular cubic volumes?
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For liquids that are easy to vaporize or evaporate, such as liquid nitrogen, LNG, and sulfuric acid, how are their standard cubic volumes converted into regular cubic volumes? What is the relationship between standard cubic volume (Nm3/h) and cubic volume? Also, assuming the tank is filled with liquid nitrogen, when loading it. Due to the high pressure in the storage tank and the fact that the user cannot use the liquid, it has to be released. How can the liquid level in the tank be calculated so as to avoid any loss of volume?
Converted using the ideal gas law
This post was last edited by 01150235 on 2015-12-27 at 15:37. Standard volume * molar mass / (density * 22.4) = volume. My theoretical knowledge is too poor; I hope the original poster can recalculate it……
What you’re asking about is probably the relationship between the liquid phase and the gas phase. The equation pv=nrt isn’t suitable in this case, as there is a phase change involved :) That’s what Baidu told me; the density of liquid nitrogen can be found on page 58 of the \"Handbook of Physical Properties of Chemicals and Materials – Inorganic Volume\"； The standard boiling point of nitrogen is -195.8°C; its density in liquid form is 0.808 at -195.8°C. 1 cubic meter of liquid nitrogen can be vaporized into nitrogen gas amounting to 808/28*22.4 = 646.4 units. Second question: what does “deficit ton” mean? Trade measurement? Weight transfer is carried out using a balance; if overpressure occurs due to vaporization during unloading, the excess pressure can only be utilized as much as possible in order to reduce losses.
The simplest way is to use a process flow software for calculation