KEG Forced Draft Evaporative Condenser

KEG- FORCED DRAFT EVAPORATIVE CONDENSER

Forced draft evaporative cooling is a mechanically ventilated condenser with a fan installed at the air inlet. Relying on the fan at the lower part of the tower, the cold air outside the tower is forcibly sent into the tower through the air inle duct. Mainly used in small cooling towers or cooling towers where water is aggressive to fans.

KEY BENEFITS

100% heat rejection guarantee

Lower horsepower options

Low sound fan

Flexible design

Significant water savings

Antifreeze design

KEG CHARACTERISTICS

Individual Fan Drive System, Super Low Sound Axial Fan, Induced Draft

CTI Standard STD-201(21) Coil Design

Capacity Range100 – 3000KW(For Single cell models, nominal R717 KW, suitable to container delivery)

TYPICAL APPLICATIONS

Suitable for serious water shortage area

Suitable for areas with strict noise requirements

Suitable for cold regions

Limited plan area installations

Indoor installations

Dry operation in winter time

PRINCIPLE OF OPERATION

Evaporative Mode

The refrigerant gas is discharged from the compressor into the inlet connection of the evaporative condenser. Water from the condenser’s sump is continuously flooded over the condenser coil, while ambient air is simultaneously forced into the unit. As the ambient air moves up through the coil section, a portion of the spray water is evaporated into the air stream.

The evaporative process cools the spray water, which in turn cools the tubes containing the refrigerant gas. The cool tube walls cause the refrigerant gas to give up heat and condense into a liquid. The condensed liquid flows out of the coil’s sloping tubes to the high pressure liquid receiver for return to the system.

The hot, saturated air is driven through the drift eliminators, where any entrained water droplets are removed. The hot saturated air discharges out of the top of the unit at a high velocity, where it can dissipate harmlessly into the atmosphere. The water which was not evaporated falls into the sump and is recirculated by the spray pump to the water distribution system above the condensing coil section.

Dry Mode

The refrigerant gas is discharged from the compressor into the inlet connection of the condenser. Cool ambient air is forced into the unit and moves over the heat transfer coil. The air is warmed as the cool tube walls cause the refrigerant gas to give up heat and condense into a liquid. The condensed liquid flows out of the coil into a high pressure receiver for return to the system. The hot discharge air continues through the drift eliminators and where it can dissipate harmlessly into the atmosphere.

DESIGN FEATURES 

Reduced Plan Area

Due to the increased thermal performance, KEG condensers can be selected specifically to minimize the unit plan area while maximizing capacity for those applications where space is limited.

Significant Water Savings

KEG evaporative can operating in a 100% dry mode at a significantly higher dry bulb switchover temperature than that of a typical bare tube coil evaporative condenser and even higher when compared to hybrid condensers utilizing a combination of reduced coil surface and PVC cooling tower fill material. This leads to a significant increase in the number of hours per year the condenser can operate in dry mode (spray pumps off), thus increasing your water savings. This combination of features allows KEG evaporative to be operated with both water and energy efficiency in mind, making it the ideal choice for most geographic locations.

Winter Non-Freezing Design

The unique blast design makes the KEG series evaporative cooling have a better anti-freezing effect. It can better meet the operation of low temperature in winter. Its blast working mode can make the evaporative cooling non-freezing in low temperature environment. The advantage of this is not only saving energy but also saving water.

Maximum uptime & reliability

Maximize reliability and minimize unplanned downtime with the Fan System

• Enjoy peace of mind and uninterrupted operation with multiple fans and motors

• Perform through the harshest conditions with a durable and robust industrial design

• Increase reliability, corrosion resistance, and longevity with superior material options that save you time and money