Condenser(Main Application)

Location: After the steam turbine (secondary loop)

Function: Condense exhaust steam back into water

Why titanium tubes:

• Excellent resistance to seawater corrosion

• High reliability, long service life (20–40+ years)

• Low maintenance and fouling resistance

👉 This is the largest and most mature application of titanium tubes in nuclear power plants.

Seawater Cooling System

Location: Intake → Cooling circulation → Discharge

Applications:

• Heat exchanger tubes

• Critical sections of cooling pipelines

Key advantages:

• Outstanding resistance to chloride corrosion

• Anti-biofouling performance

• Suitable for long-term marine environments

Auxiliary Heat Exchangers

Location: Auxiliary and closed-loop cooling systems

Typical equipment:

• Closed cooling water heat exchangers

• Safety-related cooling systems (in some designs)

Function:

• Transfer heat between systems

• Prevent cross-contamination of fluids

Desalination Systems (Nuclear Coupling)

Many coastal nuclear plants integrate desalination (MED / MSF / MVR).

Titanium tube applications:

• Evaporators

• Condensers

Why titanium:

• Handles high temperature + high salinity

• Superior corrosion resistance vs stainless steel

⚠️ Why NOT in the Reactor Core?

• Titanium has limitations under high radiation and temperature

• Not ideal neutron absorption characteristics

• High cost

👉 Core materials are typically:

• Stainless steels

• Nickel-based alloys

• Zirconium alloys (fuel cladding)