Indirect
cooling section consists of a PVC tube type air to air heat exchanger, comes
complete with 304 stainless steel casing and sump, water distribution system
with moisture eliminators, with submersible or end suction type pump, secondary
air intake filters and secondary air exhaust propeller type fans.
Direct
evaporative coolers are manufactured with 304 stainless steel casings and sumps
to prevent corrosion and are supplied with submersible or end suction pumps,
with water distribution header, adjustable valves and bleed-off valve. Coolers
utilize 12” deep CELdek or GLASdek media, as manufactured by Munters
Corporation or equivalent make.
The
units can incorporate return air section, air mixing section and economizer
section. Each section is also equipped with air intake dampers, and flat or
v-bank air filters.
Features
common to all units are structural steel channel base, galvanized steel
housing, access doors, high density fiberglass insulation, high efficiency
blower motors, and externally mounted and wired electrical enclosures.
Hindair’s
standard Indirect/Direct evaporative cooling Units range from 2,000 cfm to
30,000 cfm. and special units could be built up to 60,000 cfm. In contrast to
standard commercial units Hindair’s each unit is custom designed to meet the
particular application and specific requirements of the project.
Evaporative cooling has made summers more bearable for
thousands of years and with 21st century technology provides effective,
economical, environmentally friendly, and healthy cooling. Evaporative cooling
comes in five flavors: direct, indirect, indirect/direct, indirect/indirect,
and indirect/DX. Evaporative cooling works alone or as a supplement to a chiller or DX
system
Direct evaporative cooling
With direct evaporative cooling, outside air is blown through
a water-saturated medium (usually cellulose) and cooled by evaporation. The
cooled air is circulated by a blower.
Direct evaporative cooling adds moisture to the air stream until the air stream is close to saturation. The dry bulb temperature is reduced, while the wet bulb temperature stays the same.
Direct evaporative cooling adds moisture to the air stream until the air stream is close to saturation. The dry bulb temperature is reduced, while the wet bulb temperature stays the same.
Indirect evaporative cooling
Indirect
evaporative cooling cools air without added moisture. By using a cross-flow,
corrosion-resistant
polymer heat exchanger, water never comes in contact with the air
being
supplied to the space. With indirect evaporative cooling, a secondary
(scavenger) air stream is cooled by water. The cooled secondary air stream goes
through a heat exchanger, where it cools the primary air stream. The cooled
primary air stream is circulated by a blower.
Indirect evaporative cooling does not add moisture to the primary air stream. Both the dry bulb and wet bulb temperatures are reduced.
During the heating season, an indirect system’s heat exchanger can preheat outside air if exhaust air is used as the secondary air stream.
Indirect evaporative cooling does not add moisture to the primary air stream. Both the dry bulb and wet bulb temperatures are reduced.
During the heating season, an indirect system’s heat exchanger can preheat outside air if exhaust air is used as the secondary air stream.
Packaged
Indirect/Direct Evaporative HVAC unit complete with
blower section, motor base, motor, v-belt drive, fl at bank
fi
lter section, integral cooling tower, indirect cooling coil section,
direct evaporative cooling section and inlet louver
with
birdscreen.
The entire unit is to be manufactured by Aztec Sensible
Cooling, Dallas, Texas or Ventaire .
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Evaporative Cooling is a device used to cool the air through the evaporation of water. Breezair Evaporative cooling system delivers cleaner, healthier air to conditional space.
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