In depth treatment of the Houle test for fluid consistency? Othjer "qucik and dirty" tests
In depth treatment of the Houle test for fluid consistency? Othjer "qucik and dirty" tests
(OP)
Today, while talking to a pump vendor, I learned of the Houle test for slurries: Pour a volume of slurry over a round plate, 60cm diameter, wait 60s, and measure how deep the liquid is in the middle of the plate.
The people at GEA use this to fit their piston pumps to slurries, for example onepump will be bujilt for fluids with 2-38mm.
I like the idea, because this test is something you can quickly on site and without changing the fluid by sieving solids.
The downside I see is that for a non-newtonian fluid, fluids with vastly different bahviour could yield the same height.
Googling for Houle Test only brought me hits at GEA, but I'd be interested in reading an in-depth treatment.
I'm also curious about other simple tests for fluid behaviour (especially if applicable to slurries). Here are the ones I know:
- Empty a bucket on the ground and see how far it spreads: Basically not reproducable, also hard to get a quantitative result vs. a purely qualitative one
- Connect 2 pieces of pipe with a 90° elbow, place elbow on ground with both pieces pointing at 45° to horizontal. Fill with liquid, tilt so on pipe is on ground, one upright, take time till empty. I think this has the same downsides and upside as the houle test, maybe harder to haandle.
Can anyone share some insights or literature on the subject on non-lab tests? While I'm dealing with shit and waste-derives sludges, insights from other industries would be appreciated also.
The people at GEA use this to fit their piston pumps to slurries, for example onepump will be bujilt for fluids with 2-38mm.
I like the idea, because this test is something you can quickly on site and without changing the fluid by sieving solids.
The downside I see is that for a non-newtonian fluid, fluids with vastly different bahviour could yield the same height.
Googling for Houle Test only brought me hits at GEA, but I'd be interested in reading an in-depth treatment.
I'm also curious about other simple tests for fluid behaviour (especially if applicable to slurries). Here are the ones I know:
- Empty a bucket on the ground and see how far it spreads: Basically not reproducable, also hard to get a quantitative result vs. a purely qualitative one
- Connect 2 pieces of pipe with a 90° elbow, place elbow on ground with both pieces pointing at 45° to horizontal. Fill with liquid, tilt so on pipe is on ground, one upright, take time till empty. I think this has the same downsides and upside as the houle test, maybe harder to haandle.
Can anyone share some insights or literature on the subject on non-lab tests? While I'm dealing with shit and waste-derives sludges, insights from other industries would be appreciated also.





RE: In depth treatment of the Houle test for fluid consistency? Othjer "qucik and dirty" tests
I hate Windowz 8!!!!