14-1-2015Geothermal Energy

Geothermal Energy: Harnessing The

Abundance Of Earth?

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Geothermal Energy

14-1-2015Geothermal Energy

.

• The earth holds enormous amounts of

energy.

• We like to use this energy as we are faced

with an ever increasing demand.

• However, in most places, this earth energy is

hard to reach.

• Yet, in a handful of locations, this energy can

be found immediately below the surface of

the earth, or in some cases, even on the

surfaces.

• Take Iceland for example.

• Geysers regularly eject a mixture of steam

and hot water high up in the sky: free energy.

Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Geothermal Energy

14-1-2015Geothermal Energy

Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Geothermal Energy Case

14-1-2015Geothermal Energy

Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Challenge / question

• Our client in Iceland would like to use the high

steam pressure of a geyser to produce power.

• This is possible using a turbine.

• The low pressure of steam leaving the turbine

would also be used to warm up clean water for

the capital Reykjavik.

• The client is looking for a condenser, a so called

surface vacuum condenser, to condense the

steam.

• There are two important requirements for the

design of the surface vacuum condenser: the

pressure drop must be extremely small for the

low pressure steam and the enormous forces of

the turbine housing that connects to the

condenser, must remain manageable.

Geothermal Energy Case

14-1-2015Geothermal Energy

Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Challenge / question

• In addition, it must be taken into account that the

steam from a geyser, the geothermal fluid, is

anything but clean and will corrode various

materials.

• The material used for the heat exchangers, for

example, must be 254 SMO.

• It is also a known fact that the tube-to-plate

connection could be a weak spot in the system.

• The extreme restart conditions also require

particular attention.

Geothermal Energy Case

14-1-2015Geothermal Energy

. Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Our solution

• Years of experience allowed us to design a

surface vacuum condenser with a very small

pressure drop on the steam side.

• This was made possible thanks to a special

design of the low pressure steam duct and a

sophisticated pattern of pipes.

• In order to absorb the forces of the turbine

housing to the condenser, we created

special bellows.

• The condenser can also be hung using

springs which then absorb all the forces.

Geothermal Energy Case

14-1-2015Geothermal Energy

. Geothermal energy. Energy. Steam and

water. A geyser is under pressure. High

pressure.

Our solution

• We designed the internal construction of the

heat exchangers for the geothermal fluid so

that it is able to accommodate large thermal

expansion.

• This prevents the heat exchangers from

bending during the restart process.

• For the tube to plate connection, we choose

the established and special connection of

Bronswerk®Heat Transfer which prevents

cracks from appearing between the tube and

the tube plate and therefore resolves the

corrosion problem.

• Our welders are able to weld the most

extreme combinations of materials; the

requirements of 254 SMO for the heat

exchangers is mere child's play for them.

Geothermal Energy

• Geothermal Energy is related to the following products:

• Separator: http://www.bronswerk.com/en/Separator/PT78/

• Condenser: http://www.bronswerk.com/en/Condenser/PT50/

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Geothermal Energy

• 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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Geothermal Energy

• 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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Geothermal Energy

14-1-2015Geothermal Energy

• 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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14-1-2015Geothermal Energy