thanks zekeman this is fantastic. i'll have a look through the numbers and convert them into metric units and i'll let you know if i have any more questions, but thanks for all your help.
gav
Thanks for the suggestion Yonathon. Unfortunately this is an offshore module and I'm working from the office and I don't think the client would be too keen to carry out my experiments for me!
Out of interest though, I don't quite understand the theory behind this. How would the water tanks...
zekeman,
Yes, I had a feeling the numbers wouldn't look good. If you could try and explain how you got to the numbers that would be fantastic. I can also confirm that it is just 40mm insulation in the walls.
Thanks for all of this.
gav
We believe that all walls (including the one between the air gap and target area) are A60 firewalls. I'm treating them all as 40mm (1.57") steel with a density of 100kg/m3 and a thermal conductivity of 0.4 W/m/K (0.231 Btu/ft/F) and a heat capacity of 460 J/kg/K (0.110 Btu/lb/F). Unfortunately...
Believe me zekeman, when I'm getting free advive I'm not going to complain about waiting a couple of days to get it! I'm thouroughly grateful for any help I cn get for this. Also, being British, I suppose its my fault you're using the old fashioned units as well!
The problem is really about...
Yes, of course, sorry. The room is 7.5m wide (it will be at ambient conditions and, if its relevant, it will be largely free of equipment and so on i.e there is not a huge separator or other vessel sitting in the middle of the room). Unfortunately this fire is likely to be of significant...
I've revised my sketch with the dimensions. We can assume a wall thickness of 40mm. Thanks again.http://files.engineering.com/getfile.aspx?folder=96093dc8-aeb2-4264-9307-ef9dd199569a&file=Presentation2.pptx
Thanks corus.
A couple of (probably stupid) questions:
Is the data I've already stated enough to answer this problem? I've been trying to use the heat equation, Stefan-Boltzmann law and some radiation power equation based on Plancks Law but I always seem to be missing one or two variables...
Thanks guys.
Admittedly it looks like I've catastrophically underestimated how complicated this problem is. I assumed it was a relatively simple problem and once I had a point in the right direction I'd be flying.
Nonetheless...
I discussed this with the other guys on the project and it was...
I'm trying to find the temperature inside a structure if a fire starts on the outside.
The information I have is temperature of the fire and distance from the fire to the wall. I also have (or can assume) all the information about the wall of the building (heat transfer coefficients, thermal...
