Introductory Article

Heat exchanger heating is extremely important for thermal processing.

As such, industries use indirect heat more often.

Not only that, but heat transfer can be safer when controlled.

Industries continue to adopt this technology as they look to optimize energy use.

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 Defined

Heat exchanger heating is when heat is applied indirectly to a process.

The heat source does not come in direct contact with the process fluid.

As a result, the heat of the process can be more controlled and even.

There is less risk of contamination to the process fluid with this method.

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The Importance

The efficiency of heating affects cost of operation.

As such, choosing the right heat exchanger is important.

Not only that, but heating indirectly can be much safer.

Having even temperature also allows for a higher quality end product.

The Fundamentals 

One fluid is heated by a heat source.

That working fluid travels through the heat exchanger.

The process fluid travels through the heat exchanger separately.

The two fluids need not mix, as they transfer heat through metal.

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Heat Exchanger Types Used for Heating 

Shell and tube heat exchangers are used when very high temperature heating is needed.

Flat plate heat exchangers can be used when space is limited for heating purposes.

Finned tube heat exchangers are commonly used to heat air.

There are other applications for each of these heat exchanger types.

So it all depends on what you want to use the heat exchanger for.

Heat Exchanger Parts Used for Heating

Heat exchangers used for heating will have a heat transfer surface.

There will also be inlet and outlet manifolds.

There will also be seals to prevent the fluids from mixing.

The system will also have a frame to hold up to the pressure and temperature.

So that means heat exchangers will not suddenly fall apart.

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Factors that Affect Heat Transfer for Heating

The larger the heat transfer surface area, the better the heat exchanger will perform.

So smaller heat exchangers are better.

Random or Turbulent flow also helps heat transfer.

The temperature difference can play a role in heat output as well.

So you have to find a happy medium when designing.

Materials of Construction for Heating Heat Exchangers

Carbon steel heat exchangers are common when it comes to heating.

Stainless steel heat exchangers can withstand more corrosive heating fluids.

Copper alloy heat exchangers aid in quick heat transfer.

The material your heat exchanger is made from can determine how long it lasts.

That is why we have a material compatibility page on our website.

Industrial and HVAC Heating Applications 

Applications for heat exchanger heating include HVAC support.

Chemical and petrochemical plants make use as well.

Food processing requires hygienic heat exchanger heating too.

Heat exchangers are also used for district heating.

Thus there will always be a need for this type of heating.

Versus Direct Heating Systems

Direct heating methods heat the process fluid itself.

Yet heat exchanger heating is much safer than direct methods.

Indirect heating also allows better temperature control.

There is also less maintenance needed for heat exchanger heating.

Which is why so many industries use this method.

Energy Efficiency

Another advantage of heat exchanger heating is energy efficiency.

Thus causing less fuel to be used.

You can also use heat exchanger heating to recover waste heat.

Savings on operating costs allow you to be more competitive.

So you will see a better return on investment.

Maintenance and Operational Considerations

Performing inspections on heat exchanger heaters will ensure they continue to operate at peak efficiency.

Controlling fouling is one aspect of this.

Cleaning heat exchangers will also help.

Doing preventative maintenance will help your heat exchanger last longer.

Buying Favors Simple Guidance

Buyers research heating capacity needs.

Then operating temperature ranges.

Then pressure ratings and fluid options.

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You use proper thermal engineering jargon.

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Frequently Asked Questions

What is heat exchanger heating?

Heat exchanger heating is when you use a heat transfer surface to indirectly heat a system.

When should I use heat exchanger heating?

Heat exchanger heating allows you to increase safety, efficiency, and temperature control.

What industries need heat exchanger heating?

Some industries that use heat exchanger heating include HVAC, chemical processing, food processing, district heating, and industrial process heating.

Is heat exchanger heating energy efficient?

Yes! Since heat exchanger heating reduces heat losses, you can also use heat reclaim to recover some of that energy.

Where can I learn more about buying?

Continue learning on our website with clear, concise guidance.