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Not all the coolers (heat
exchangers) are build to perform accordingly. There are many
technologies behind designing and building the coolers, from the selection
of material, air-surface areas, flow design, etc. will greatly affect the
cooling capacity.
However, TSD Boron Nitrides
simply applying coating on the cooler will increase the thermal transfer
between the materials, increase air-to-surface areas, protects alloy, and
result and distinct cooler no other can compare.
※Thermal Conductivity
Hexagonal boron nitride offers
excellent thermal transfer and thermal radiation with superb thermal
stability over wide temperature ranges.
|
Material |
Thermal Conductivity
(W/Mk) |
|
Cooper |
385 |
|
hbn |
300+ |
|
30% AlSi |
200 |
|
Aluminum |
150 |
|
Brass |
109 |
|
Tin |
92 |
|
Lead |
34.7 |
|
※Cooler Structure
Basic cooler design is construct of a passage tubes and
cooling fins both joined by different methods, such as tin used to join
for the brass coolers.
|
|
The passage tubing carry different form of media, from
fluid, oil, air from the hot source. The heat is then transferred
to the fins for cooling.
Cooling is achieve by the different temperature (outside)
and the object inside (fluid, oil, air, etc.).
| |
The cooler
design determine the efficiency by: |
| |
Flow characteristics |
| |
Material selection |
| |
Air-to-surface fine area |
| |
Thermal transfer capacity from passage to fines |
|
 |
※BRASS Coolers
Thereof, we can see the brass cooler have better cooling
capacity than aluminum coolers. However, brass coolers are greatly
degraded the performance due to the use of the tin joining the passage and
fines. Finally a layer of paint to prevent oxidation greatly reduced
the overall brass coolers.
Brass coolers without paint and final coated with TSD BN
thermal coating can achieve best cooling performance.
※BN Thermal
Coating Surface Characteristics
|
The coolers greatly benefit with TSD Boron Nitride
thermal coating. The coated surface formed a unique layer
of BN plates as you can clearly see from the illustration on the right.
The fins on fins easily increase over 50% of air-to-surface contact
areas as expose to cooler air flow. |
 |
※BN - Excellent Radiant Heat
Transfer
|
Surface area greatly increased from the illustration.
The heat quickly transferred onto BN surface and quickly cooled by air
stream or heat radiation by the boron nitride. |
 |
※Increase Thermal Capacity /
Efficiency
|
 |
 |
|
You can see the join/connection of the
passage and fins are covered by the BN coating to enhance the thermal
transfer that normal connector lack of. |
The above illustrator is the ordinary
cooling construction. The passage tubing and fins have little
connection areas and often with poor thermal conductivity. |
|
※Non-wetting surface protection
layer coat
The TSD BN thermal coating provides excellent surface
protection capabilities. The illustration on the right shows the
stainless steel-310 is heated to 950℃ and cooled down in few cycles.
Clearly the alloy surface maintain its alloy characteristic.
|
 |
※Unique Exterior "WHITE"
Appearance
The boron nitride coating provide a whitish ceramic finish that give a
distinct appearance. Such appearance easily marketed as it's unique
property and color separation no others able to compete. |
