Alfa Laval - 5 reasons to make the switch from shell-and-tubes

5 reasons to make the switch from shell-and-tubes

For years, shell-and-tube model heat exchangers have been the traditional solution for heat transfer in applications involving two-phase mixtures or especially high temperatures and pressures. But while shell-and-tubes can meet demands that are unsuitable for gasketed plate heat exchangers, their operation also involves a number of significant drawbacks.

Improved performance

As many in industry have already discovered, converting to a plate-and-shell heat exchanger like Alfa Laval DuroShell can mean improved performance – and an improved bottom line. 

If your business is unsure about making the switch, here are five reasons that may change your mind:

How to minimize fatigue problems in plate-and-shell heat exchangers

Increase uptime in positions with fluctuating temperatures or pressures.

                       Get our white paper                       


1 A smaller footprint

Bulky shell-and-tube designs pose particular challenges for power plants and petrochemical facilities dealing with space limitations. This can cause acute issues during expansion projects, where plants are looking to add capacity within a minimal existing footprint, or simply where debottlenecking is necessary. Plate-and-shell models are much more compact, offering a number of clear benefits – from simplified installation to increased operational efficiency.

2 No more fouling issues

Shell-and-tubes are notoriously prone to fouling, limiting their heat transfer capabilities over time. By switching to a unit such as DuroShell, turbulence created across the plate makes it possible to reduce or even eliminate fouling problems altogether. The result is more reliable performance and a longer lifetime for equipment used in demanding applications.

3 Increased thermal efficiency

The flow distribution and reduced fouling give plate-and-shell heat exchangers like DuroShell much higher thermal efficiency than their shell-and-tube counterparts. This in turn creates new possibilities for increased productivity and energy savings.

4 Reduced maintenance needs

Due to fouling problems, businesses using shell-and-tube heat exchangers are forced to devote a great deal of time to labour-intensive maintenance. For plate-and-shell units like DuroShell, complicated cleaning processes are replaced with quicker, simpler solutions such as back flushing or Cleaning-in-Place systems.

5 Significant savings

With DuroShell as your choice of plate-and-shell heat exchanger, the initial investment will be much lower than with most shell-and-tube units. However, savings on CAPEX is only the start. There is also a much lower total cost of ownership thanks to minimized service needs combined with the possibility of a reduction in overall energy consumption.

Duroshell product image

Alfa Laval DuroShell RollerCoasterRollerCoaster

Robust and efficient performance

A patented plate pattern optimizes thermal efficiency with improved fatigue resistance, flow distribution and mechanical strength. 

Watch animation to learn more about this unique feature

Alfa Laval DuroShell PowerPackPowerPack

Optimized flow distribution and fatigue resistance

Patented design enables improved fluid distribution, mechanical strength and unparalleled fatigue resistance. 

Watch animation to learn more about this unique feature