Water Monitoring for Combined Cycle Power Plants was Hot Topic September 18,
2014
Four experts provided great background information but also focused on specific
options. There is no substitute for a good debate. In one example the
affirmative made the case for intelligent digital sensors. The negative came
back with they have their place but a lower cost option can often be
sufficient. The four speakers described instruments to make the critical
measurements but also how the measurements can be used to maximize efficiency
and reduce costs. The challenges of operating GTCC plants under rapid cycling
and with air-cooled condensers were also probed. Speakers were:
David M. Gray,
Senior Product Manager at Mettler-Toledo Thornton, Inc
Kai D. Rondum,
Product Manager for Boiler Water Treatment at Ashland Water Technologies
Joe Zimmerman,
Director of Marketing at Chemtrac Systems, Inc.
Ken Kuruc,
Manager of Industry Accounts, Fossil at Hach Ultra Analytics
The presentations and other relevant data have been posted in the Global
Decisions Orchard and the Gas Turbine and Combined Cycle Decisions websites.
Here are the links:
Monitoring Iron transport in power generation- Hach application note
Nephelometer has advantages over the particle counter. It is easily calibrated
and can determine absolute iron oxide concentrations
Revision Date:
9/17/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Hach, Monitoring Equipment, Nephelometer, Monitoring
On line particle counters for power plants- Chemtrac –presentation by Joe
Zimmerman
Particle counters use “light blockage measurement and can detect 2 micron
particles and up to 8 size ranges. A particle index can be determined. Low
levels of insoluble particulate can be determined but not particles less than 2
microns. A new development allows volumetric measurement of volumetric
concentration in ppb
Revision Date:
9/17/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Chemtrac, Monitoring Equipment, Total
Suspended Particles, Monitoring
Ashlands automation portfolio - ONGuard- Solenis presentation by Kai Rondum
Technology plant form with on line performance monitoring, water treatment
process control and mobile and cloud computing data management services
Revision Date:
9/17/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Ashland, Monitoring Equipment, Controller, Monitoring
Combined cycle on line measurements - Mettler Toledo presentation by David Gray
Specific conductivity, cation conductivity, dissolved oxygen, redox, pH, sodium,
silica and total organic carbon are all measured by MT instruments. Intelligent
digital sensors have advantages. Optical DO offers faster measurement and less
maintenance but polarographic offers measurement to lowest concentrations
Revision Date:
9/17/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Mettler Toledo, Monitoring Equipment, Silica, Sodium, Monitoring
Boiler Feedwater Pump Efficiency Optimization - Yokogawa application note
The optimization of boiler feedwaer operations depends on controlling feedwater
and drum pressure. The Yokogawa DPharp can measure pressures up to 2000 psi and
can measure across a range of pressures with high accuracy. Significant energy
and maintenance reduction is achieved with optimization of pressure
differential.
Revision Date:
9/17/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Yokogawa Electric, Monitoring Equipment, Pressure, Monitoring