GAS TURBINE & COMBINED CYCLE DECISIONS
UPDATE
August 2015
McIlvaine Company
TABLE OF CONTENTS
Gas Turbine Emission
Control and Exhaust Systems is the Hot Topic Hour on August 6, 2015 at 10am CST
Smart Starts Mitigate HRSG Damage, Preserve
Reliability
A smart start is one that is able
to fulfill these three goals: 1) Avoid damage and preserve reliability (more
specifically, minimize damage from thermal stress and overheating); 2) Permit
rapid loading of the gas turbine; and 3) Provide steam at the proper flow rate
and temperature to the steam turbine.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, HRST, Attemperator,
Economizer, Heat Recovery Steam Generator, Thermal Shock, Startup, Maintenance,
Combined Cycle Journal
The Value Proposition Offered by HEPA
Filtration
The cost of an E12 HEPA filter may
be as much as four or five times the price of a conventional air filter.
Economic analyses conducted by owners have typically focused on compressor
performance and assumed a one- to two-year lifetime for HEPAs serving high-hours
engines. Based on those parameters alone the HEPA was, and continues to be, a
tough sell. But where the cost of replacement power is expensive or unavailable,
water washing is not feasible, or a corrosive ambient environment is causing
premature engine failure, HEPA filtration may be readily justified.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, Alliance Pipeline, W.
L. Gore, HEPA Filter, Cost, Life Cycle Cost, Combined Cycle Journal
How to Reduce the Startup Time of a Legacy
Combined Cycle
Legacy HRSGs in service may
restrict or limit the plant startup rate, but some possible upgrades can reduce
the amount of time it takes to bring a combined cycle online. This article
discusses three options: steam sparging, controlling the HP-drum termperate ramp
rate independently of the gas turbine startup rate be venting steam, and lay-up
practices.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, HRST, Heat Recovery
Steam Generator, Startup, Combined Cycle Journal
Use of Hydrophobic HEPA Filters May Double
Time Between Aero-engine Overhauls
Alliance Pipeline conducted a
four-year evaluation of Gore HEPA filters on LM2500 aerodynamic gas turbines
serving two pumping stations in Canada. The short term benefits include
virtually no degradation in compressor efficiency and shaft power over the run
period and a better heat rate.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, W. L. Gore, Alliance
Pipeline, HEPA Filter, Air Filtration, Combined Cycle Journal, Canada
How to Boost HRSG Performance and Increase
Your Plant’s Bottom Line
The performance thieves lurking in
many heat-recovery steam generators sometimes can be eliminated with relatively
little effort and at low cost. This article discusses four primary performance
thieves: Gas baffling, Gas-side fouling, LP economizer recirculation and
Buoyancy instability/vapor locking.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, HRST, Heat Recovery
Steam Generator, Economizer, Performance, Thermal Shock, Corrosion, Heat
Recovery, Combined Cycle Journal
HRSG Coverage Increases at WTUI as LM Cogen,
Combined-Cycle Facilities Multiply
Thermal shock can occur in panel
type economizers and HRST Inc’s ShockMaster economizer is designed to resist
tube cracking and other issued caused by thermal gradients. Buoyancy instability
is also a cycling issue that causes flow stagnation in panel type economizers.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, HRST, Heat Recovery
Steam Generator, Economizer, Thermal Shock, Combined Cycle Journal
Gas Turbines: Design and Operating
Considerations
This article provides a number of
engineering recommendations to improve gas turbine operation and performance
while reducing operating costs, particularly for the chemical processing
industry. Topics include aeroderivative gas turbine.
Revision Date:
7/20/2015
Tags:
221112 - Fossil Fuel
化石燃料, 325000 - Chemical
Manufacturing , Gas Turbine, Aeroderivative Gas Turbine, Heat Recovery Steam
Generator, Chemical Engineering
Combined Cycle Gas Turbine Valve Markets,
Issues and Options
Valve suppliers can supply more
than just valves. Total Solutions provide packages based on needs which are
specific to processes and industries. This addition of Total Solutions to the
revenue base adds more than $700 million to the annual market. GTCC plants have
many special issues such as fast start HRSGS. They create unique requirements
for valve design. A decision guide on GTCC valves is a gateway to the entire
database on the subject.
Revision Date:
7/13/2015
Tags:
221118 - Other Electric Power , McIlvaine, KCI Technologies, Valve
On Thursdays at 10 a.m. Central time, McIlvaine hosts a 90 minute web meeting on
important energy and pollution control subjects. These Webinars are free
of charge to owner/operators of the plants. They are also free to
McIlvaine Subscribers of Power Plant Air Quality Decisions and Utility Tracking
System. The cost for others is $300.00 per webinar.
See below for information on upcoming Hot Topic Hours. We welcome your
input relative to suggested additions.
|
DATE |
SUBJECT |
DESCRIPTION |
|
August 6, 2015 |
Gas
Turbine Emission Control |
(See Below)
|
|
August 20, 2015 |
Total
Solution Options |
The latest developments relative to
regulations and technology for Gas Turbine Emission Control and Exhaust Systems
will be discussed in a 90 minute session.
The basis for the discussion will be the Gas
Turbine Emission Control and Exhaust System Route Map and Summary.
We will continue to expand this summary and to
link to new articles and case histories on a custom website. We are
seeking contributions from the industry. Please contact us and we can
coordinate your contribution. (rmcilvaine@mcilvainecompany.com)
As you can see from the route map and summary
we are linking to our previous hot topic hour presentations and some
supplemental material.
As of August 1, we have 75 slides covering the
range of components with the exception of duct burners which we will cover
later. We still have a few days to add more slides. During the webinar we
will be hearing from many people who will summarize with one or two slides the
more detailed information which is found in the database.
Those who will be making additions include:
·
Kevin Linfield,
Engineer/ Projects, Airflow Sciences Corporation
·
Chetan Chothani,
Director, Business Development, Breen Energy
·
Megan Winter,
CERAM Environmental, Inc.
·
Wayne S. Jones,
Sales Manager, Power Generation, Air Pollution Control Catalyst & Technology,
Haldor Topsoe, Inc.
·
Gale F. Hoffnagle,
CCM, QEP, Senior Vice-President and Technical Director, Air Quality Consulting
Practice Manager, TRC Environmental Corporation
·
William (Bill)
Hankins, Vice-President, Sales USA, Wahlco, Inc.
·
Glenn C. England,
Principal Consultant, Environ International Corporation
There are many issues and options which vary by
industry and geography. All are included in a comprehensive database which
is part of Gas Turbine & Combined Cycle Decisions. For the next few weeks
this database will be accessible to non-subscribers at:
Gas Turbine Emission Control
Subsequent to the webinar this website will no
longer be freely accessible. It will be part of the Gas Turbine and
Combined Cycle Decisions. This includes a password protected website.
Power plants can register for free. However, there is a charge for
others.
Click here to view schedule and register
McIlvaine Company
Northfield, IL
60093-2743
Tel:
847-784-0012; Fax:
847-784-0061
E-mail:
editor@mcilvainecompany.com
Web site:
www.mcilvainecompany.com