| CELdek® is made from
a special high cellulose material, which is impregnated to resist degradation.
CAUTION: Do not expose to sparks or flame -- the material is flammable
when dry. GLASdek® is made from glass matt and rigidifying agents.
GLASdek® is fire rated with UL900, Class II for depths up to 12".
Wide Range of Cooling Applications
The CELdek® unique cross-fluted design of the pads
induces highly turbulent mixing of air and water for optimum heat and
moisture transfer. CELdek® further enhances this design using unequal
angles in the slope of the corrugations. The 45 degree and 15 degree corrugations
are offset to continually direct the water to the air entry side of the
pad.
This results in:
High cooling efficiency -- up to
90% in the 400-500 FPM velocity range for a 12" depth of CELdek®...slightly
higher in GLASdek®. These pads (flute size 6560/15) contain 123 square
feet of cooling surface in every cubic foot (440 square meters per cubic
meter).
Much higher face velocity -- The natural tendency is
for the air to push the water out of the pad. Because of the unequal angle,
the maximum air velocity without water carryover is approximately 700
FPM. Most engineers design systems for an average velocity of 550 FPM
or less to allow for variance in air distribution.
Self-cleaning design -- Munters®, CELdek® and
GLASdek® resist clogging due to atmospheric dust or sand. When the
recirculating water is turned on, especially without air flow, the water
flushes the surface with more flushing at the entering side where debris
normally accumulates. The also serves to reduce mineral build-up.
Sizes Available
CELdek® and GLASdek® evaporative cooling pads
are installed side-by-side with no intermittent joints or framing. Maximum
size is: 12"W x 72"H x 12"D. The CELdek® pads can be
cut down to 3", 4", 6", 8", 12", or 18"
or custom cut in depth and to any height in multiples of 12" up to
72". GLASdek® pads have a mimimum 4" depth. For taller pad
walls, the media can be stacked to a height of 12', using intermediate
supports along the horizontal joints.
Water Distribution
Water flow is based on the depth of the pad. Both CELdek®
and GLASdek® require 1.5 gallons per minute per square foot of horizontal
surface area. For installations having intensive evaporation and pads
taller than 72 inches, an additional 10-20% of water may be required.
Distribution Pads
Distribution pads supplied in 2" or 3" sections
of cross-fluted pads with special edge reinforcement are made to disperse
the water laterally across the top of the pad. For more information, please
contact us.
Scale Control
Scale formation looks like frost and normally shows
up on the air entry side of the pad. To prevent scale formation, a bleed-off
equal to 10-50% of the amount of water evaporated may be required. The
exact amount will depend on the pH and hardness of the water. Once the
bleed-off rate is established, the scale can be controlled.
If chemical treatment is needed, the recommended treatment approach is the use of crystal modifiers: such as sulfonated polystyrenes and polymaleic acid. This treatment allows scale to form, but the chemical additives distort the resulting crystal structure, changing the scale to a non-adherent sludge. The sluge deposits are easy to flush from the media surface.
Algae Control
Although algae may grow on a HumiCool™ evaporative
cooling pad, it will not cause deterioration or rot. But, if allowed to
grow freely, in may eventually clog the passages and inhibit the flow
of air. Algae buildup is controlled by implementing simple maintenance
techniques. The program should be started early. For more information
call us.
Misc. Part Numbers:
CEL1545121272 CEL1545121260 CEL1545121248
CEL1545061272 CEL1545061260 CEL1545061248
CEL1545041272 CEL1545041260 CEL1545041248
|
