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Wet Surface Cooling System

Longhua Wet Surface Air Cooler (WET SURFACE AIR COOLER) is a closed circuit cooling system that is an alternative to a Cooling Tower / Heat Exchanger system. The fluid being cooled (or condensed) does not come into contact with the atmosphere.
Less Investment: Save about 40-60% of investment
Save Water: About 30-50% of the total water
Reducing energy usage: by 10% - 20%
Working Principle
Working Process
Product Feature
Product Advantage
Application Fields
Site Photos
Working Principle
Longhua Wet Surface Air Cooler (WET SURFACE AIR COOLER) is a closed circuit cooling system that is an alternative to a Cooling Tower / Heat Exchanger system. The fluid being cooled (or condensed) does not come into contact with the atmosphere.
In a WET SURFACE AIR COOLER system, warm process fluids or vapors are cooled in a closed-loop tube bundle (the process fluid being cooled never comes in contact with the outside air). Open loop water is sprayed and air is induced over the tube bundle resulting in the cooling effect. As a steam turbine condenser,some examples of cooling applications are:
Cooling; Water; Glycol; Oil; Fuel; Gases; Condensing; Steam; Ammonia; Propylene; Butane
Working Process
The WSC cooler or condenser operates with induced draft co-current flow, which means that the air and spray water are both traveling in a downward direction across the tube bundle. This configuration ensures that spray water is evenly distributed over the entire tube surface and essentially minimizes the risk for fouling. 
Other cooling methods use a counter-current flow, (air traveling up and spray water traveling down). This creates turbulence on the bottom of the tube. This turbulence results in incomplete distribution of the spray water over the tubes, which leads directly to fouling of the tube surface and a drop off in thermal performance. 
As the cascading spray water mixes with the air, an equilibrium temperature forms as the water evaporates to the air, thus the warmed air and water mix together in the plenum/basin area providing inherent freeze protection during operation. Heaters can be included for non-operational cycles.
Product Feature
Exhaust steam condenses inside of tubes
Condensation heat drives the evaporation of part of spray falling over outside of tubes
Heat is rejected by air driven by axial fans
Product Advantage
High Heat Transfer Performance
Condensation inside & evaporation outside
Lower Back Pressure
Performance is up to the wet bulb temperature of circumstance, the medium outlet temperature can be lower than air dry bulb temperature, lower back pressure
Less power consumption
Less power consumption and equipment investment than ACC
Condensation System
ACC at low temperature & WET SURFACE AIR COOLER at high temperature, water saving up to 30% compared with water condensation system
Easy Transportation
Easy transportation, erection and commissioning for module and compact design
Application Fields
Evaporative cooler (condenser) is a kind of high efficiency energy-saving equipment developed by Longhua Technology on the basis of absorbing advanced technology at home and abroad. Compared with similar products, it's more energy saving, water saving, simple packless structure makes the air inlet more unobstructed, less resistance, suitable for use in bad environment. Evaporative cooler (condenser) can be widely used in petrochemical industry, light industry medicine, refrigeration and air conditioning, food refrigeration and many other industries.
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