Manufacturer of Air Cooled Heat Exchanger

Vi Energ Resources involved in design and manufacturing of Air Cooled Heat Exchanger in chennai, India.

An air-cooled heat exchanger is a type of heat exchanger where air is used to cool a fluid. Also called as Fin Fan Cooler. Unlike water-cooled heat exchangers, which use water as the cooling medium, air-cooled heat exchangers rely on ambient air to remove heat from the process fluid. They are commonly used in various industrial applications, including power generation, chemical processing, and HVAC systems.

Air Cooled Heat Exchanger comprises

1. Heat Exchange Coils: These are the main components where the process fluid flows. The coils are made of materials with good thermal conductivity, such as copper , Stainless steel or aluminum, to efficiently transfer heat to the air.

2. Fans: Large fans blow ambient air over the heat exchange coils to facilitate heat transfer. The airflow helps in cooling the process fluid inside the coils. Fans can be axial (blowing air parallel to the fan shaft) or centrifugal (blowing air perpendicular to the fan shaft).

3. Frame and Casing: The structural framework supports the heat exchange coils and fans. The casing encloses these components, protecting them from environmental factors and directing airflow.

4. Inlet and Outlet Nozzles: These connect the heat exchanger to the process system, allowing the hot fluid to enter and the cooled fluid to exit.

5. Control Systems: May include thermostats, variable speed drives for fans, and other instrumentation to regulate the operation of the heat exchanger based on temperature and flow conditions.

6. Air Flow: Fans blow ambient air across the heat exchange coils. As the air passes over the coils, it absorbs heat from the coils, cooling the fluid inside them.

7. Cooling Effect: The heated air exits the heat exchanger, and the cooled fluid exits from the other side of the coils. The cooled fluid is then returned to the process system.

Applications

Power Plants: Used to cool condensate and other fluids in thermal power plants.
Chemical and Petrochemical Plants: To cool process fluids and maintain desired temperatures in chemical reactions.
HVAC Systems: For cooling air in large commercial and industrial buildings.
Oil and Gas Industry: Used for cooling various fluids in extraction and processing operations.

Types

1. Forced Draft: Fans are located at the intake of the air-cooled heat exchanger, blowing air over the coils. The fans push air through the heat exchanger, which then exits the unit.
2. Induced Draft: Fans are located at the exhaust side of the heat exchanger, pulling air through the coils. This design can help reduce the height of the unit and control airflow more precisely.
3. Counterflow: The process fluid flows in the opposite direction to the airflow. This configuration typically provides better heat transfer efficiency.
4. Crossflow: The process fluid and airflow are perpendicular to each other. This configuration can be more compact and is often used in smaller installations.