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Power Plant Chemicals Webinar - Hot Topic Hour September 25, 2014
The level of knowledge demonstrated by the speakers relative to the challenges of preventing corrosion and malfunction of gas turbine combined cycle plants which are cycling hundreds of times per year and may be using poor quality source water makes a persuasive case for continuing expert advice.
Revision Date: 9/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, McIlvaine, Kiewit, Miox, HDR Engineering, Heat Recovery Steam Generator, Air Cooled Condenser, Fogging System, Cooling Tower, Treatment Chemicals, Ultrapure Water, Cycle Chemistry, Corrosion, Water Treatment, Zero Liquid Discharge
Cooling Towers by Tom Muilenberg, Miox - Hot Topic Hour September 25, 2014
The Mixed oxidant system is providing savings in terms of cooling tower chemical usage and power plant output.
Revision Date: 9/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, Miox, Air Cooled Condenser, Treatment Chemicals, Cooling Tower, Water Treatment
Colleen Layman advised that chemistry limits developed for traditional industrial watertube boilers are not generally applicable to HRSGs. Chemistry is unique.
Revision Date: 9/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, HDR Engineering, Heat Recovery Steam Generator, Treatment Chemicals, Cycle Chemistry, Water Treatment
Questions answered regarding HRSG water/steam chemistry and prevention of corrosion and fouling in steam generators. Even seemingly minor issues have been known to cause failures that cost power producers millions of dollars and in some cases even claimed lives. This is the ultimate cost.
Revision Date: 9/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, Kiewit, Air Cooled Condenser, Heat Recovery Steam Generator, Fogging System, Treatment Chemicals, Cycle Chemistry, Corrosion, Ultrapure Water, Water Treatment, Zero Liquid Discharge
Power Plant Chemicals Overview by Bob McIlvaine - Hot Topic Hour
Bob McIlvaine reviewed some of the challenges. • Use of municipal treated wastewater (Chemtreat article posted) • Rapid cycling (reviewed in monitoring session earlier) • Air Cooled Condenser and iron transport (reviewed in monitoring recording) Steam Generator - Continuous Analyses • Effluent standards (CCR and Effluent - Continuous Analyses • Zero liquid discharge
Revision Date: 9/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, McIlvaine, Treatment Chemicals, Ultrapure Water, Water Treatment
Case study of a GE sodium hypochorite system water treatment installed at Entegra's Union Power Stateion. After the system was installed, the plant steadily reduced chlorine addition to the point it was finally stopped. A follow-up project was done to install a permanent hypochlorite injection system on it as well. Overall chemical cost has decreased by over 10%, a significant dollar amount for a facility of this size.
Revision Date: 12/31/2013
Tags: 221112 - Fossil Fuel 化石燃料, GE, Entrega, Treatment Chemicals, Water Treatment, Combined Cycle Journal, USA
Improved Reliability of High-AVT (High-pH Water Treatment) Application to Combined Cycle Plants
Generally in the water treatment of combined cycle plants, ammonia and hydrazine are used in the feedwater system and phosphates are used in the boiler system. However, in Mexico, the Tuxpan No. 2 and No. 5 power plants have adopted “High-AVT (high-pH water treatment),” in which ammonia is used to set the pH of feedwater higher than the conventional level, requiring no phosphates in the boiler system. In response to such good operational results, MhI introduced high-AVT as an option for the water treatment of combined cycle plants.
Revision Date: 12/31/2013
Tags: 221112 - Fossil Fuel 化石燃料, Mitsubishi Heavy Industries, Ammonia, Treatment Chemicals, Phosphate, Boiler Feedwater Treatment, Water Treatment, Mexico