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Recent content by bbnc1

  1. bbnc1

    Temperature transfer to Stainless Steel Surface?

    iainuts, IRstuff: You have given me great help and advice. I will do further reading with the links provided and understand full consequences before I set out on the prototype. Great forum!
  2. bbnc1

    Temperature transfer to Stainless Steel Surface?

    I really appreciate both IRstuff and iainuts for your inputs. Believe me when I say that as soon as I reveal what I use it for, it would be very obvious since there has been prior art in this area. Anyway, the solution has to be cheap and of course, safe. iainuts: If I take out the open...
  3. bbnc1

    Temperature transfer to Stainless Steel Surface?

    IRstuff, the high level requirement is that I need a cooling source size 1 ft x 2 ft of about -300F +/- 30F, so this eliminated all the cooler I am familiar with. My application is not in crygenic area, thus, seem odd to you, but because of LN2, I seek for help in this forum to make sure I...
  4. bbnc1

    Temperature transfer to Stainless Steel Surface?

    Hi iainuts, Your assumptions are almost correct. The "container" in this case has little volume since I am only interested in the heat transfer (cold transfer)and not as containment of LN2. Because I am interested in super-cooling the rectangular box, LN2 will have to flow constantly to make...
  5. bbnc1

    Temperature transfer to Stainless Steel Surface?

    IRstuff, Thanks for the link to the containers. I have a diagram drawn, but don't know how to attach to this thread (I searched for instructions but not avail). Anyway, I'll try to describe it better. The LN2 source is connected to a pipe (say 1"), this 1" pipe is then attached to another...
  6. bbnc1

    Temperature transfer to Stainless Steel Surface?

    The application is indoor and I am aware of the 700/1 expansion, so the gas will be vented outdoor. You mention precipitation outdoors is also problematic, so I am stuck again :-). I thought about putting a collector on the vented side, but then I will have do deal with pressure difference...
  7. bbnc1

    Temperature transfer to Stainless Steel Surface?

    Thanks so much IRstuff and iainuts. The info you provided is very helpful. I'll check out the links and do more detailed research. The parameter I was most interested in was the surface temperature of the SS filled container (w/ pressure vent for boiling of LN2 during filling), And it looks...
  8. bbnc1

    Temperature transfer to Stainless Steel Surface?

    This is a hypothetical example similar to the application that I am reseaching without revealing too much. I know this is dangerous just like a stove top would be. You can guess that the surface is use as a cooling mechanism, and no human will touch it (wasn't bvious). Asking questions on this...
  9. bbnc1

    Temperature transfer to Stainless Steel Surface?

    I tried reading all the threads to see if there is already a topic on this but couldn't find any. I have an application where one end of SS container is attached to Liquid Nitrogen source and the other is open-end to accommodate for air expansion when LN2 is filling the enclosed container. My...

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