Tim Reckmann CC SA 3.0 … · Climate Change awareness/actions are putting pre ssure against new and existing power plants. 2. ... In general, new plants are ... Steam Turbine / Generator

Supercritical BoilersIMIA Conferrence Doha, Qatar 4th Oct. 2016Stephan Lämmle, Munich Re – IMIA Executive Committee SponsorPatrick Jennings, HSB – ChairpersonJeff Ashman, Charles Taylor Heekun Park, Samsung Fire & Marine InsuranceSimon Dejung, SCOR Dario Popovic, Swiss ReThomas Gebert, AXA Dirk Von Roth, SCORChristian Kolbe, Miller Michael Shepherd, Starstone

Tim Reckmann CC SA 3.0 https://commons.wikimedia.org/wiki/File:Kraftwerk_Westfalen_2013_02.jpg

Agenda

1. Drivers and Scope of Paper

2. Boilers for Power Generation

3. Insurance Aspects

4. Conclusion

10/11/2016 2© 2016 The Hartford Steam Boiler Inspection and Insurance Company. All rights reserved.

Coal Firing Market Conditions

1. Climate Change awareness/actions are putting pressure against new and existing power plants.

2. Markets

Coal use is projected to decrease in developed markets

Coal use in China will level off

Largest growth market for coal will be in India

3. Coal will represent 30% of market share of electric power generation by 2040.


Coal-Fired Power Generation


Courtesy Munich Re

Boilers for Utility Steam Generation

10/11/20165© 2016 The Hartford Steam Boiler Inspection and Insurance Company. All rights reserved.

Technology


Subcritical Supercritical Ultra-supercriticalAdvanced Ultra-

supercritical

Pressure (Mpa) 17 (typ.) >24 25-29 >30

Temperature (Deg C) 540 540 600 – 620 >680

Max. Efficiency (LHV Net) 38% 43% 45% >50%

CO2 Intensity (g / kWh) >880 800 – 880 740 – 880 670 - 740

Technology Status Proven ProvenCurrent/Emerging

TechnologyIn Development/

Future

Boiler Major Components

Furnace and waterwalls

Superheater

Reheater

Headers

High Energy Piping

These are large and complex structures.

In general, new plants are larger


© Doosan Babcock

Strength vs. Ductility

Chemical Composition (recipe)

Pre and Post Weld Heat Treatment

Experience

Quality Control

Materials


Courtesy of M&M Engineering

Insurance Aspects

New / Emerging Risks

Boiler materials

Cyber

Traditional Risks

Erection

Fire / Combustion Explosion

Steam Turbine / Generator

Transformer

DSU / BI

Coal-Fired Utility Power Generation Risks


HSB Claim File

Materials with claims


Material Nominal Composition SC USC A-USC

T 23 2 1/4 Cr-1.5 W-V ww ww

T 24 2 1/4 Cr-1Mo-V-Ti-B ww ww

Gr. 91 9 Cr-1Mo-V-Nb-N P, SH/RH P, SH/RH ww

Gr. 92 9 Cr-2W-V-Nb-N P P, SH/RH ww

HR3C 25Cr-20Ni-Mo-Nb-N SH/RH SH/RH

Traditional Risks

Ground Conditions

Natural Hazards

Transit

Erection – Lifts

Hot testing and commissioning

Newer / Emerging

Erection – Welding

Material Issues can require a year for replacement

Erection Risk


Public Domain Photo

Inexpensive sensors have led to the ability to monitor almost everything.

Alarm Management

Controls and Cyber


Leitstand 2" by Steag, Germany - Steag, Germany. CC BY-SA 3.0

https://commons.wikimedia.org/wiki/File:Leitstand_2.jpg#/media/File:Leitstand_2.jpg

Flue Gas Desulphurization – Rubber Lined

Coal Handling and Storage

Fuel oil light off

Combustion explosion

Mitigation / Requirements

NFPA 850

Hot Works Permits

Housekeeping (Dust)

Human Element

Traditional Risks – Fire


© Copyright Ian S and licensed for reuse under this Creative Commons Licence

Start-up vs. Operation

Over temperature conditions of sections (waterwalls)

High energy piping condition

Tube leaks

Mitigation

Alarms / Trips

NFPA 85 or ATEX 94/9/EC

Traditional Boiler Risks - EB


HSB Claim File

Financial Risks

Delay in Startup (DSU) or Advances loss of profit

Fixed operation and maintenance cost

Debt Service

Take or pay contracts

Contingent Business Interruption

Property Damage


Conclusions

Engineering

Don’t forget the traditional risks

Construction

Testing and Commissioning

Operational

Fire

Understand and pay attention to emerging risks

Boiler materials

Cyber / controls

Make sure the appropriate standards for the jurisdiction are followed

Experience Matters


Underwriting

Understand and learn from the T 24 experience

Materials

Erection

DSU / BI

Damage vs. Defect

Understand the BI exposure (1 x 100%)


Take Away

Coal is abundant and while the use of coal will peak, then drop, coal-fired power plants will remain a large player in the near future.

New plants will be built utilizing Ultra-Supercritical and Advanced Ultra-Supercritical technology potentially with carbon capture

New coal fired plant construction has shifted from developed to developing areas

Traditional risks have not disappeared

Market forces and technology to address these market requirements have created new risks


“ May you have the hindsight to know where you have been, the foresight to know where you are going and the insight to know when you’re going too far”

Irish Blessing

Finally


Courtesy of M&M Engineering

Thank you very much for your attention

Stephan Lämmle, Munich Re – IMIA Executive Committee Sponsor

Patrick Jennings, HSB – ChairpersonJeff Ashman, Charles Taylor Simon Dejung, SCORThomas Gebert, AXAChristian Kolbe, MillerHeekun Park – Samsung Fire & Marine InsuranceDario Popovic, Swiss ReDirk Von Roth, SCORMichael Shepherd, Starstone

Documents

Tim Reckmann CC SA 3.0 … · Climate Change awareness/actions are putting pre ssure against new and existing power plants. 2. ... In general, new plants are ... Steam Turbine / Generator