Air-cooled heat exchangers
Benefits
Customized to your requirements
Very low energy consumption
Robust heat exchangers, built for tough conditions
High performance
Low maintenance requirements
With an Alfa Laval Olmi finned tube air heat exchanger you get a robust cooler that will deliver high performance for many years to come. Our product range covers most applications in the oil & gas, petrochemical and power industries. We supply both standardized and fully customized, engineered-to-order solutions. Thanks to their flexible designs, we can configure our heat exchangers to match your specific operating conditions, ensuring reliable operation, low operating costs and high performance.
Alfa Laval finned tube air heat exchangers are built for reliable operation, year in and year out, in the most demanding applications. We have supplied air-cooled heat exchangers for upstream, midstream and downstream applications for over 50 years, and we know what it takes to ensure high uptime. Based on your specific operating conditions, we provide a customized, high-quality solution with low CAPEX and OPEX.
We offer a complete range of services starting from thermal and mechanical engineering to manufacturing, modularization, supervision at site and after-sales service.
In addition to the most common configurations, we are keen to provide additional and unique features (see below for more information)
Models
Olmi Model G
• Modular design, ensuring rapid ordering and delivery
• Flexible configurations
• Designed for easy transport on a normal truck or in a 40-ft container
• Quick and easy to install
Olmi API 661 Air Cooler
• Engineered-to-order units for the toughest applications
• Handles temperatures up to 400°C (700°F) and pressures up to 700 bar (10,000 psi)
• Available in many materials including titanium
• Completely pre-assembled, modularized units
Unique features
HyperFin
Slitted fin design maximizes heat transfer
Alfa Laval Olmi’s HyperFin slitted tube fins increase heat transfer compared to standard API 661 type fins, resulting in reduced size and cost of the cooling system.
The slits on the aluminium fins interrupt the air flowing over the fin surfaces. This prevents the forming of a stagnant layer of air on the fin surfaces, and thereby increases heat transfer. The impact on the pressure drop and required fan horsepower is minimal, keeping operating costs low.
SealTight
Effectively prevents leaks from the plugs in the header box
Leaks from the plugs in the header box of air-cooled heat exchangers operating under high pressure is a well-known problem for plant owners around the world. Alfa Laval Olmi’s unique SealTight system effectively puts an end to this problem. The SealTight system comprises specially designed plugs, plug gaskets, threading and seats, and offers a highly effective and reliable sealing. SealTight is available in a wide range of materials for different applications. With SealTight you get a safer and more environmentally friendly plant. The avoided leaks reduce maintenance work, and when your heat exchangers need service, the plugs are easy to remove and replace without risk of over torquing.
ALOnsite™
Qualified support at your facility
There is always a local team of Alfa Laval Olmi service engineers standing by to assist you at your facility at short notice. Our network of field technicians, service engineers, Service Centres and logistics hubs make sure you have quick access to qualified help and spare parts at all times, anywhere in the world.
Case studies
Upgrade brought lower operating costs and reduced noise levels
Substantial savings in power consumption as well as reduced noise and vibration levels were the results when the fans, motors and transmissions of a 60-cell system of air-cooled heat exchangers in a European fertilizer plant were upgraded. Alfa Laval Olmi´s service organization handled the entire upgrade from initial planning to installation.