deltawars
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What is the best type of dewar?
I'm going to make liquid nitrogen generator using the Joule Thomson effect and I need to get a dewar but there are different types like glass, steel
and plastic and I'm not sure which one is the best.
This is a list of dewars i can get, please can someone tell me which one is the best for keeping liquid nitrogen the coolest?
1. LAB 10 Aluminum Cryogenic Dewar (10L)
2. Dilvac Dewar Flask MS/111 (1L) Enamelled Steel Container
3. Dilvac Dewar Flask SS/111 (1L) Stainless Steel Container
4. glass Vacuum Dewar Flask 250ml
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Bert
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What you intend to DO with the liquid Nitrogen will have some influence on the best choice? You list equipment with a range of 250ml to 10l capacity?
More information on your requirements is needed...
For long term, you will want a self pressurizing design as the liquid will boil off more slowly under higher pressure.
For still longer term, a vaporizer coil is built into the walls, sacrificing some of the liquid gas to refrigerate the remainder.
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deltawars
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Sorry I decided to go with the 250ml as its the cheapest, I'm only going to use it so I can see if my set up works, after it works I wont need it and
the liquid nitrogen will just stay in the system.
How do I delete a thread?
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Texium
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Thread Moved
21-11-2023 at 14:18 |
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