Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by George1979

  1. George1979

    temperature calculation inside purged enclousure

    True - shouldn't post on the Saturday evening - plus English is not my first language - so sorry for that. The box is a cube 3x3x3, pipe has a 19mm OD and inlet air temperature is a room temperature 21 degC - in addition the flow can be adjusted to smth higher than 20l/min. As far as the...
  2. George1979

    temperature calculation inside purged enclousure

    Thanks again guys - I wasn't really clear with my description I suppose:-). Yes I wanted the fluid to stay hot and at the same time I wanted the temperature inside the enclosure to stay as cool as possible by pumping air(to achieve good operating conditions for some of the equipment). I don't...
  3. George1979

    temperature calculation inside purged enclousure

    Thank you very much for your post - it's true I didn't think that carefully enough. I just took the flowrate value as an example - this could be easily modified and increased - could you help me establish what should that flowrate be to bring the temp to a sensible level? Another question would...
  4. George1979

    temperature calculation inside purged enclousure

    My background isn't strictly engineering so I'm having some difficulties in calculating the temperature inside of a purged box - I would really appreciate your help. Quick description: Enclosure of dimensions 3x3m has around 30m of 1" piping which is around 250 degC hot. It will be purged with...
  5. George1979

    Heater for 100l oil tank

    I am sorry if I was unclear in my post - what I am looking for are manufacturers of heaters for this sort of tanks. I can't give you any more information about the system or oil being heated for which I really regret. Regards, George
  6. George1979

    High Temp Insulation for test section

    Thank you all for your input - that was much helpful - could you tell me please what are those polymers that could withstand 300-350C and where could I buy them? Cheers, George
  7. George1979

    High Temp Insulation for test section

    Sorry maybe I wasn't too clear about my questions - there are two: 1)electrically insulating polymer polymer up to ~500C 2)thread sealant up to around 300C (doesn't have to electrically insulate) - so grafoil tape should be suitable but I can only find US suppliers - and maybe there are some...
  8. George1979

    Heater for 100l oil tank

    Hi everyone, I would be really grateful if I could get some information on what kind of a heater I should use for the following tank: 100l pressure vessel - it will be filled wit oil, have nitrogen blanket, be pressurised up to 30 Bar g and heated up to 250-300C. Connection on the tank is a 2"...
  9. George1979

    High Temp Insulation for test section

    Hello everyone, I'm in a desperate need for a polymer which I could use on my test section to electrically insulate parts of it. My problem is that we estimate that the temperature can reach up to 500C and that is why I have problems finding some. I would like to ask as well if anyone could...
  10. George1979

    High Temp Thread Sealing Tape

    Hello everyone, I wanted to ask about a sealing tape that I could use for threaded connections on the rig that we're building. By high temperature I mean something around 300C - preferably 350C if that is possible. The PTFE tape that we've got in the workshop goes only up to around 250C and I...
  11. George1979

    Large Enclousure / Electrical box

    Hello everyone, I am new here so sorry if I've posted this in a wrong place. I need to find a quite big enclosure (preferably sealed - basically a very large electrical box) - up to 2m high with a base 1,5x1,5m. I tried RS catalogue but they didn't have anything as big as I need. I would be...

Part and Inventory Search