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What Sets ADS Technology Apart?
Lab
Test Results
Comparison
testing was recently conducted to compare performance characteristics
between ADS LWA-3 tubing and another brand (most similar technology).
Both brands of tubing are self-weighted and have slits spaced
along the length at 3" intervals. Contrary to ADS
(slits on top), the other brand has their slits positioned
along the side of the tubing.
Identical conditions were maintained for the performance testing
of both brands.
EXPERIMENT
CONDITIONS
|
Condition
|
ADS
LWA-3 Tubing
|
Other
Brand Tubing
|
|
Length
of tubing used
|
4
ft
|
4
ft
|
|
Depth
of water(1)
|
28
in (~1Psi)
|
28
in (~1Psi)
|
|
Water
temperature
|
70o
F
|
70o
F
|
|
Air
flow
|
3.5
SCFH
|
3.5
SCFH
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It
is evident from these images (video recorded during test)
that, although conditions are identical, the size and number
of bubbles emitted vary greatly between the ADS tubing and
the other brand.
ADS LWA-3 Tubing
|
Other Brand
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Summary
- 20 to 30 times
more bubbles are produced by ADS tubing as compared to other
brand
- Generates 200%
to 300% better oxygen transfer as compared to other brand
EXPERIMENT RESULTS
|
Parameter
|
ADS
LWA-3 Tubing
|
Other
Brand Tubing
|
|
Pressure
reading
|
3.55
Psi
|
1.2
Psi
|
|
Calculated
pressure at orifice (1,2)
|
2.55
Psi
|
0.2
Psi
|
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Tolerance
(3)
|
5.8
ft
|
0.46
ft
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(1)
The weight (pressure) of water at a temperature of 70o F
is equal to 62.31 pounds per cubic foot (0.4327 Psi).
(2) Pressure at orifice is the pressure reading less
1 Psi to compensate for the weight of the water.
(3) Tolerance is expressed as the degree to which the tubing
must remain level (maximum allowable change in levelness).
Calculated using pressure at orifice divided by 0.4327 Psi.
This measurement is extremely important because it directly
relates to the ability of the tubing to emit bubbles over
its length in real world applications where ponds, lakes
and reservoirs do not have level bottoms.
The
following series of images (video recorded during testing)
demonstrates the ability of ADS tubing and the other brand
of tubing to maintain a consistent bubble pattern along
the length of tubing. Both brands of tubing
were tested in 150 U.S. gallon tanks (2' x 2.5' x 4')
OTHER BRAND
SUMMARY
- In a typical pond,
with a 2' to 3' bottom variation, a 250' length of
the other brand's tubing will emit bubbles only at the shallow
portion of tubing resulting in an increase in bubble diameter
and less water lift and oxygen transfer.
- ADS aeration systems
will operate at 10 times the differential of bottom levelness
as compared to the other brand. This ensures that
an even and reliable bubble pattern can be maintained along
the entire length of tubing to facilitate oxygen transfer
and mixing to the whole water body.
Go
To:
Our Technology
Aeration Comparison Table
PFRA Study
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