KEJ Hybrid Type Evaporative Condenser

Key Benefit

• 100% heat rejection guarantee:CTI Standard STD201(21) certified, capacity range 100–3000kW per single cell, suitable for container delivery

• High temperature resistance:Precooling fin design handles high temperature steam condensation, suitable for demanding industrial processes and high temperature fluid applications

• Reliable:Hybrid air and water cooling with drift eliminators, drift losses <0.002% of circulation rate; axial fan with direct drive, Siemens/WEG motors.

• Compact:Fin tube unit positioned above drift eliminator, reducing coil footprint; suitable for limited plan area and indoor installations.

• Anti freezing:Supports dry operation during low load and cold weather; water can be drained from the sump to prevent ice formation.

Main Application Industries

• Industrial Refrigeration

• Commercial HVAC

• Power Generation

• Chemical Processing

• Oil & Gas

• Petrochemical Industry

• Steel Industry

• Pulp & Paper

• Data Center

• Process Cooling

• Food and Beverage

• Renewable Power 

Principle of Operation

In the KEJ evaporative condenser, the fin tube unit is positioned above drift eliminator and under the fan. The process gas goes through the fin tube unit at first, then through the below coil part. A portion of the load is dissipated to the atmosphere through the tube walls and fins through sensible heat transfer at the fin tube unit, so less heat needs to be rejected at the coil part, that means less water evaporation. And the gas is condensed to liquid at this process.

Water is pumped from bottom basin and sprayed over the below coil. At the same time, ambient air is induced by axial fan to coil surface and fin tube surface. On the coil surface, enough latent heat and sensible heat is exchanged between air and water, that let process gas give up heat and condensed to liquid. Then the hot and saturated air is drawn through the drift eliminator and fin tube, and the possible plume will be abated by fin tube, then discharged into the atmosphere. The unevaporated water falls into the basin and goes to the recirculation again.

Basic Info

KEJ Characteristics

• Precooling fin design, axial fan, induced draft

• CTI Standard STD-201(21) Coil Design

• Capacity range  100 - 3000KW(For single cell models, nominal R717 KW, suitable to container delivery)

Typical Applications

• Suitable for serious water shortage area

• Suitable for high temperature steam condensation

• Limited plan area installations

• Indoor installations

• Dry operation in winter time

Customer Review

Water & Energy Savings

"Our plant is located in a water-scarce region. The KEJ's hybrid design is the real solution. In summer, it relies on highly efficient evaporative cooling; in winter under low load, it automatically switches to 100% dry operation with zero water consumption, completely solving our water shortage problem. Water savings exceeded expectations compared to conventional wet systems."

– Operations Director, Mining Industry, Australia

Anti-fouling & Maintenance

"Performance loss due to coil scaling has always been our biggest headache. The KEJ's pre-cooling finned tube section takes on part of the heat load, reducing moisture evaporation on the coil surface and significantly lowering the risk of scaling. Since installing the KEJ, our coil cleaning frequency has been reduced by more than half, greatly cutting maintenance costs."

– Equipment Supervisor, Large Petrochemical Group, China

Plume Abatement

"Our old cooling towers produced thick white plumes in autumn and winter. It affected the look of our facility and even raised safety concerns near the plant entrance. The KEJ's design is very clever – the moist exhaust air is reheated by the dry finned tubes at the top, so the plume is barely visible. Environmental inspections passed smoothly. This was a huge bonus."

– Engineering Manager, Food Processing Plant, Europe

Compact Design

"Our plant is on a rooftop with very limited floor space. The KEJ's compact, integrated design solved the installation problem perfectly. Plus, the induced draft axial fans run quieter than we expected. It saved valuable footprint while delivering the required cooling capacity."

– Project Manager, Large Cold Storage Facility, Brazil

Product Reliability

"As the core component of our refrigeration system, we demand the highest reliability. The KEJ's modular design and CTI certification gave us confidence. After more than a year of full-load operation through hot weather, we have never seen a system high-pressure alarm due to insufficient cooling. Performance is rock solid."

– Procurement Director, Pharmaceutical Company, India