Dry Cooler

Operation Principle

• Thermax Dry Coolers are also known as Radiators/Remote Radiators, Fin Fan Coolers, Air Cooled Heat Exchangers.
• They work on the principle of convection and conduction to dissipate heat from process fluid to the air stream created by the fans mounted on it.
• By suitably selecting the tube material, we can use a dry cooler to effectively cool or condense process water, chemicals or any heat transfer fluid, even if it is corrosive or contaminated with particulates.
• Dry coolers are closed loop systems which eliminate any kind of water loss and thus eliminating the continuous requirement of make-up water.
• Being a closed loop circuit, the water treatment cost is also negligible as compared to conventional evaporative cooling towers.

• Thermax offers two types of Dry coolers - 'V' type and 'H' type based on the application or requirement.
• The fans can be mounted according to induced draft or forced draft type, depending on the application.
• The fans are of direct drive type, but options with gear box or belt drive are also available.
• The tubes which carry the process fluid are of copper, carbon steel or stainless steel with aluminum fins to maximize the heat transfer.
• We offer two variations in fin configuration based on the operating fluid temperature such as- Continuous fin and High Fin tube bundles to optimize selection.
• The side panels are epoxy coated which makes it corrosion resistant and gives it an excellent appearance.

• Fluid Temperature: 30°C to 240°C with a minimum approach of 5°C above dry bulb temperature.
• Cooling Capacity range: 200 kW onwards
• Thermax can offer custom built dry coolers based on the application and nature of working fluids.

• Modular designs of Thermax Dry Coolers helps in space optimization
• Highly efficient fin to tube heat transfer
• Zero usage of water which results in
  • Zero water wastage: Due to closed loop operation and no evaporation
  • No water treatment plant: As it doesn't require continuous supply of makeup water
  • Negligible maintenance cost: As water treatment, makeup water and replacement of fills not required
  • No periodic cleaning requirement
• Separates process side from any contamination due to closed loop system
• Plenum made of Epoxy coated galvanized iron, enhanced corrosion resistance

• Steel – Electrical Arc Furnace / Induction furnace cooling
• Refinery & petrochemicals – Reactor column cooling
• Rubber - Roller cooling
• Polyfilm – Chill Roll Cooling
• Independent Power stations – Cooling of engine jacket water, lube oil and inter-stage cooler
• Plastics –Cooling of injection molding machine
• Textiles – Condensation of process vapour
• Refrigeration / Air conditioning – As condenser for air cooled chillers
• Power industry- Turbine lube oil cooler/ turbine intercooler