Avantages et inconvénients des échangeurs de chaleur à plaques

Plate heat exchangers come in all shapes and sizes, and they can use a variety of innovative heat transfer technologies depending on the needs of the application. Among its many advantages, three of the most important are most space savings, low environmental impact, and reduced energy and ongoing maintenance requirements.

Advantages of plate heat exchangers

efficient

Extrusion plate example and tight holes account for high turbulence at low liquid velocities. Combined with reverse airflow, this results in an high thermal kinematic coefficient. The minimized size and high efficiency must less area for heat to move, resulting in a more modest heat exchanger than is required with other types of heat exchangers. plate heat exchangers must 20-40% less space than shell and cylinder heat exchangers.

Single Unit with Many Responsibilities

You can build it in pieces. So you get simple dividers or more complex divider profiles with more associations. This makes it possible to heat, recover and cool liquids in one heat exchanger, or to heat or cool various liquids using similar cooling or heating sources.

Easy to clean and disassemble

All you have to do is remove the tension bolt and slide the multi-function housing back on. The plate pack will then be able to be inspected, pressure cleaned or, if necessary, repaired.

close to temperature

The high productivity of plate heat exchangers also allows them to reach close temperatures, which is especially important in heat recovery and recovery applications. Temperatures closer to 1°F are conceivable.

low cost

A high heat transfer coefficient means fewer heat transfer areas and more modest, and sometimes fewer, heat exchangers. This and less space prerequisite reduces the flow rate and means a more modest siphon.

Disadvantages of plate heat exchangers

Although a plate heat exchanger has many advantages, it also has some disadvantages. Some of these disadvantages are listed below for your review.

higher initial cost

Although the process cost of the plate heat exchanger is lower, its initial cost is higher. This is because titanium plates are a bit more expensive than other plates on the market.

hard to spot leaks

Another major disadvantage of plate heat exchangers is the difficulty of finding leaks in them. The reason behind this is that the process of doing a pressure test is not as easy as it is for tube coolers.

Operating temperature limit

The operating temperature of the plate heat exchanger is limited. This is because the bonding material between the plates limits the temperature of the cooler.

joints may deteriorate over time

Joints in plate heat exchangers can degrade over time. This occurs due to the operating conditions of the board. This is why some people prefer shell and heat pipe heat exchangers over plate heat exchangers.

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