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Subsea Cooling: Smart Engineering On

The Move!

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• .

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.A heat exchanger? In the sea? But of course...

Let the sea do the work.

• .

14-1-2015Subsea Cooling

A heat exchanger? In the sea? But of course...

Let the sea do the work.

Subsea Cooling• Natural gas can be found under the surface of the earth and below the

bottom of the sea.

• It is rather warm and polluted with sand, water and hydrocarbons.

• Therefore, before natural gas can be processed, it must be cooled and

cleaned.

• All pollution can be removed at a temperature of approximately -30°C.

• Air-cooled coolers on land are excellent for this purpose; however, for

offshore locations, these are often too expensive.

• They take up too much space and are too heavy as they require special

offshore platforms.

• Therefore, offshore gas extraction often uses seawater to cool natural gas.14-1-2015Subsea Cooling

A heat exchanger? In the sea? But of course...

Let the sea do the work.

Subsea Cooling Case

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A heat exchanger? In the sea? But of course...

Let the sea do the work.

• One of our clients extracts natural

gas offshore.

• He prefers to cool the gas without

the use of a cooling installation

with pumps.

• He would like to build the smallest

offshore platform possible as the

size of the gas field does not allow

much for large investments.

• He considers a space-saving

solution by installing an

underwater heat exchanger,

allowing seawater to immediately

cool the natural gas.

• In order to realise this, a number of

new problems will have to be

resolved.

Challenge / question

Subsea Cooling Case

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Our solution

• An underwater heat exchanger,

how do you calculate its size?

• Cooling gas efficiently requires

speed and movement.

• How does that work underwater?

• How does heat spread underwater

near a heat exchanger?

• How about the growth of algae,

corrosion, pollution?

• We extensively calculated and

simulated the effect of tidal

movement underwater and natural

current of heated water.

A heat exchanger? In the sea? But of course...

Let the sea do the work.

Subsea Cooling Case

14-1-2015Subsea Cooling

.

Our solution

• Conclusion: sufficient natural

currents and flow are present to be

used for cooling.

• To prevent the growth of algae,

corrosion and pollution of the

underwater heat exchanger, a

construction can be designed with

a solid and open frame.

• Gas passes through the heat

exchanger under high pressure.

• It is therefore necessary to provide

protection that will prevent

mechanical damage, without

limiting the free flow of the cooling

water.

A heat exchanger? In the sea? But of course...

Let the sea do the work.

Subsea Cooling Case

14-1-2015Subsea Cooling

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Our solution

• It took some thinking but we

succeeded in resolving the

problems and were able to offer

the perfect tailor-made solution!

A heat exchanger? In the sea? But of course...

Let the sea do the work.

Subsea Cooling

• Subsea Cooling is related to the following products:

• http://www.bronswerk.com/en/Subsea-Cooling/PS58/

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Subsea Cooling

• Interested? Can we help you with your business?

• Read more about heat exchange solutions for different markets:

• Power: http://www.bronswerk.com/en/Power/MT40/

• Gas: http://www.bronswerk.com/en/Gas/MT14/

• Oil: http://www.bronswerk.com/en/Oil/MT4/

• Chemical: http://www.bronswerk.com/en/Chemical/MT24/

• Air Handling: http://www.bronswerk.com/en/Air-handling/MT30/

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• Can we improve your energy ROI?

• Ask our colleague nl.linkedin.com/pub/bram-marcus/11/24b/34b or

contact our company.

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• Like to know more about our company?

• Have a chat with Bronswerk people via our website or

• Visit our website: http://www.bronswerk.com/en/

• Meet us on LinkedIn.

• https://www.linkedin.com/company/bronswerk-heat-

transfer/products?trk=top_nav_products

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• http://www.facebook.com/Bronswerk.

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14-1-2015Subsea Cooling