Calculation of the pressurization vaporizer for LNG storage tanks?
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Calculation of the pressurization vaporizer for LNG storage tanks? Problem statement: Calculate the process of raising the pressure in the 10 m3 gas space from 0.4 MPa in the unloading state to 0.6 MPa in the operating state within 30 minutes, after a 100 m3 LNG tank is filled with 90 m3 of LNG. What size air-temperature gasifier should be used for each storage tank to pressurize it, in order to meet the requirements? It is known that the temperature of LNG entering the booster vaporizer is -162.3°C, while the temperature of gaseous natural gas exiting the booster vaporizer is -145°C. As we all know, complex physical heat transfer processes and phase change reactions occur within the LNG storage tanks during this process; therefore, they cannot be treated as simple ideal gases. Are there any calculation formulas available for this? This post was last edited by Love in the Rain on 2009-3-24 00:40]
Hello, the poster. I have a few related papers here; I’m not sure if you’ll need them. They contain detailed algorithms. Materials cannot be uploaded in this forum, so if you need them, send me a message and I’ll send them to you or upload them to the forum
I have uploaded several related papers to the forum; the title is: Papers on self-pressurizing vaporizers for low-temperature storage tanks, tank trucks, etc. Link: http://bbs.hcbbs.com/thread-425471-1-1.html
All heat transfer calculations are approximate simulations, and it is impossible to achieve complete accuracy; this is also why a certain margin must always be taken into account in the calculations for heat exchangers. Assuming that a stable state is reached inside the tank, the temperature remains constant while only the pressure increases, this process simplifies to one of vaporizing a certain amount of liquid, after which the heat exchange area can be calculated.
Good question, go take a look too!
Reply to 2# yajie0321, the expert on the second floor – could you send one to me as well? I’ve been researching this recently. Thank you! How should I send you a text message?
This post was last edited by wangtianyi*ao on 2011-12-7 at 11:18. Our company specializes in the production of air-cooled and water-bath type vaporizers suitable for various media such as LO2, LN2, LAR, LNG, LPG, NH3, LC2H4, CO2, and NG. We look forward to cooperating with everyone; feel free to visit our company at your convenience for inspections and guidance!
Reply to 7# doersong: Could you share your opinion?
Reply to 8# prt0683: The specific calculations were done by our technical team; I rely on experience instead
Reply to 10# doersong: Hmm! Could you share your experience? Thank you!
*e*e Comrades on the third floor, share your papers!