Drip drip drip 1

[howkers]

Occasionally our maintenance engineers report leakage in drips per minute. Fluid is water at various temperatures. I'm guessing the droplet size is related to viscosity and surface tension properties at different temperatures.

Has anyone got a link to an estimate of typical water drop size at different temperatures?

 

[NGiLuzzu]

Howkers,
some international standards define the "typical" (?) volume of "drops" and "bubbles".


The following equivalences are stated:

- 1 ml = 16 water drops
according to API 598 std., Note a to Table 5;

- 1 air bubble = 0.15 ml
according to IEC 60534-4 std., NOTE 5 to Table 2 or equivalent FCI 70-2-2003 std., TABLE 2.


Probably behind those statements there is a theoretical handling like the one you are looking for... but they may also be the result of empirical experiences or so.


Hope this helps, 'NGL