Used to sink time into a Middle-earth themed MUD back in the day. Seeing as I suddenly have a lot of time on my hands what with wrapping up at polytech and all - I figured I'll keep staying the hell away from MUD:s for now but rather dive back into simple VTT battle maps.

River-crossing in the making, probably the bridge to Thranduil's place/budget Menegroth. Currently entertaining the idea of making it an all-roots bridge because why not.

Oh heat transfer is elegant. :)

As for the images, the second is the system prior to introducing recirculation to the vertical lines, so they are a bit un-related. In reality, the top schematics is representative of this:

Basically it's a house from the Million Homes effort (of the 60's-70's) which was in desperate need of recirculation for the vertical lines to combat failing tap-water temperature. All in all, the total extent of the circulating hot water line was increased by 160%, by connecting the horisontal recirculation with the vertical lines by way of the pipe-in-pipe solution. The zero-loss coming from the vertical internal lines, combined with less straining outgoing temperature levels meant the overall energy loss increase was "only" 100%, but the per-meter loss went down by 20% so that's quite nice at least. Would have been nicer to go from separate vertical lines to the pipe-in-pipe solution, but it's a completely bonkers pre-oil-crisis system to begin with so bravo on them, I guess!

Pretty much the only redeeming quality of the cursed thing is that it is a 4 storey building with 5 000 square meters worth of roof where they can put up solar panels.

All great fun!

So, essentially, I've had to put mapping on halt for a few because it is required that I produce a bulk of text which - apparently - must have some degree of academical merit to it.

As it quickly turned out, 99% of the illustrations in the theoretical body of work are 100% indicative of engineers being engineers first, and (somtimes reluctant) illustrators second. Which is sad, beacause heat transfer in concentric cylinders deserves a touch of elegance - even if it isn't the most complicated subject matter.

And what better way to sprinkle the paper with elegance than by delicious, crisp polygons?

Yes, yes; absolutely massacred the perspective of the exerior tube - but look at the COLOUR KEY at work!

Sounds like a job for the TRACE command, which allows you to do just that; tracing along the edge of a pre-existing element.

Top shelf!