Head Area Calc
Head Area Calc
(OP)
I'm designing a paint calculator for our engineering dept. I'm having trouble calculating the area of the heads. any advice or help?
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RE: Head Area Calc
By the way paint surface area does not have to be very accurate.
Also wastage factor for paint will be different for external and external surfaces. Wastage factor will be more for external surface, because of wind.
RE: Head Area Calc
RE: Head Area Calc
I'd like to get this as close as possible so any waste is not blamed on the programmer. (me.)
I thought about getting the square foot by the weight. This is ASME tanks so they know the empty weight.
RE: Head Area Calc
(straight flange area not included where applicable, as you can treat that like a cylinder)
D=outside diameter in FEET
Surface Area in square FEET
2:1 Ellip.
1.09 x D*D
ASME F&D
0.918 x D*D
Hemi
1.5708 x D*D
Flat
0.7854 x D*D
Brian
RE: Head Area Calc
I support the comment from PEHasan. A paint manufacture advised me to use wastage factor (loss) approx 30%.
RE: Head Area Calc
If you had Mechanics in college, it should not be hard to fing the center of gravities of arcs, ellipses and spherical shapes. It will take a little work even if you have a background in college engineering courses.
The suggestion above to get the surface area from a blank disk will put you in the ball park, however, it does not take into account the stretching of the metal during the forming process.