Condensed Report: Capacity Tests on Bronz-Glow Coated Coils
These tests were conducted to determine the cost-effectiveness
and energy efficiency of condenser coils coated with Bronz-Glow
Coil Coatings, for protection against atmospheric corrosion
in temperate marine environments (salt air). Several commercial
“coatings” were tested for corrosion resistance,
as well as their effect unit capacity (heat transfer efficiency)
In each test, the coil, the brace, capacitor bracket, capacitor,
divider wall, and reversing valve were coated, then placed
in salt spray along with an untreated component. The salt
spray test was performed in accordance with ASTM B117.85
standards, using a 5.0% salt solution at 96.0° F., with
100% humidity. The components were exposed for 240 hours,
removed and rinsed with cool water, and the process repeated
to a total of 1200 hours.
Bronz-Glow Coil Coating was included in the series of tests.
“For coil protection the Bronz-Glow Coil Coating proved
to be the best (of the various coatings tested). There is
no evidence of failure (fin deterioration).”
“The untreated coil had fin deterioration around the
header plate (after the same exposure).”
Bronz-Glow coil coating is a complex, chain-link Polyelastomer
process, resistant against the entire pH scale of corrosives.
Complete capacity tests were performed on each unit before
and after the Bronz-Glow coating was applied.
Chassis was tested before and after treatment. Tests indicate
no change in unit performance.
The primary performance data was as follows:
Control No. W920227-778.
Bronz-Glow A/C Coating Tests.
| Operating Capacity* |
Before Test |
After Test |
|
Difference |
| Test 1-A |
103.5% |
103.4% |
|
-0.1% (-.001) |
| Test 2-A |
102.2% |
102.9 % |
improved |
+0.7% (+. 007) |
| Energy Efficiency (EER)** |
|
|
|
|
| Test 1-B |
8.12 |
|
|
0.0 |
| Test 2-B |
8.03 |
|
improved |
+0.05 (+0.623%) |
All tests conducted independently
by Whirlpool Engineering Laboratories.
It should be noted that in actual use, these figures
indicate no effect on heat transfer
capacity of the units.
* Indoor Net Total Btuh divided by the rated
Btuh of the unit.
**The EER is defined as Btuh/watts
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