Ackerman presentation

Gibson Station Technical Support Co-opCharlotte Ackerman

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A little about Me

4th year Chemical and Environmental Engineer Minor: Chemistry

University of Toledo Expected Graduation: December 2015

Outline Previous Co-op Sessions Current Co-op Session: Minor projects,

Outage work, Major projects Questions

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Previous Co-op Sessions

ABB Power System- Wickliffe, OH: Spring 2013

Assist with upgrading control systemDuke Energy Environmental- Plainfield, IN: Fall 2013

Samples for water qualities Calculate air emissions

Environmental- Trenton, OH: Summer 2014 Update oil spill plans Improving Madison Station’s CEMS Working with operators

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Breakdown of this Semester

Minor Projects Fuel Sample Analyzer Polisher Regen Procedure Chemistry Guideline

Outage Boiler Inspection Chemical Clean Other work

Major Projects Hot Reheat Analyzers Polisher Analyzers

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Fuel Sample Analyzer

Diesel Fuel #2 Sulfur BTU Specific Gravity

Sulfur Analyzer quit operating Looked for new analyzer or third party

Cost new analyzer: $81,310 Cost per sample: $195

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Polisher Regen Procedure

Duke Approved format Revisions

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Chemistry Guideline

Duke Format Revision

Jay Koesters (Previous Chemistry Cycle SME)

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Boiler Inspection

Purpose: Inspect for issues with boiler that would cause a performance issue within the next 8 years

What I did: Inspect and write up punch lists Outcomes: Issues found and prioritize to be

fixed for this outage or the next

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Chemical Clean

Purpose: remove iron in boiler done every 10-15 years

Chemicals from HydroChem 4% Hydroxyacetic acid 2% Formic Acid

My scope of work Revision of Procedure Time of Chemical Clean: tell operators when

to open and close valves

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Other Outage work

Boiler Map More Inspections

FGD, SCRs, Condenser

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Where’s the polishers are in the Water Cycle

Cleans water from Condensate

Polishers4 Polishers Sample Lines

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Polisher Resin

Cation Resin

(+)

Na (+) Sulfate

(- 2)

Cl (-)

Anion Resin

(-)

When the Polishers are taken out of service

1100+ running hours PI: Overall Effluent limits

Sodium: 2 ppb Iron: 50 ppb Hand samples to test for out of limit polisher

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Without the Analyzers

High possibility that ions will slip through the exhausted resin

Causes damage to turbine

Ideal Diaphragm

Actual Unit 3 High Pressure Diaphragm

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Diagram of the Analyzers

Specific Conductivity and Cation Conductivity probes

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Quotes

Waiting for project approval Sentry (Thornton) : $24,560.00

No DCS connections or regulators Control Specialists (Honeywell): $44,587.00

DCS connects and new regulators Sinks and line connections

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Turbine with the Sample Line

Sample Line

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Analyzers

Analyzers: Sodium and Cation Conductivity Grab samples: Chloride, Sulfate, Silica and

Total Organic Carbons (TOC)

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Actions being done

Waiting for approval Sentry quote: $21,520 plus $1,700 for travels

Find and check lines Replace valves Place olet fittings on cooling lines

Able to work online to extend piping to new panel

Before After

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With Analyzers

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Without Analyzers on Intermediate Pressure Rotors

Cost $3 million to repair the HI and IP of the turbine

Includes sandblasting the iron off

Repaired highly eroded parts

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Questions?