“Gas Turbine Intake Filter selection depends on the Site” – Hot Topic for
Webinar May 15th
A high level discussion consumed 100 minutes yesterday in a webinar attended by
knowledgeable end users, consultants, fiber makers, media suppliers and filter
manufacturers. The goal was to
enhance the decision making capabilities of the utility participants. The
discussion was based on the assumption that participants had reviewed the data
posted at
Gas Turbine Air Treatment – Continuous Analyses
Paul Barilla,
an independent consultant, explained that all the decisions are not straight
forward.
As you move downward the factors affecting the decisions are less clear.
If you do not have the optimum budget you may inspect and replace filters
less frequently.
Geoff Crosby
of Lydall discussed the benefits of nanofibers including the lower
pressure drop.
McLeod Stephens
of Nederman explained that the filter is part of a train of
treatment elements with the screen, weather hood coalescers, filters,
evaporative cooler and droplet eliminator.
Dan Burch
and Tim Nicholas of Clarcor showed calculations indicating
that the synthetic medium efficiency filter with lower pressure drop is more
cost-effective than the HEPA filter.
The cost analysis is displayed in the recording but is not available in
the power points.
Hersh Chaturvedi of
Eastman explained that flexibility is available to manufacture synthetic
fibers in various shapes and sizes. These fibers are incorporated with
microglass in wet laid media resulting in performance and maintenance benefits.
Eastman Cyphrex for Versatile Filtration Applications
The rest of
the session was based on the displays already on the website.
There was a review of a white paper by AAF, Donaldson
and Camfil Farr citing the many benefits of HEPA filters over
medium efficiency filters.
Gas Turbine Combustion Air Filtration “Its
impact on Compressor Efficiency and Hot End Component Life”
Ahlstrom supplies a range of media
types and efficiencies to meet gas turbine needs.
Ahlstrom Gas Turbine Air Intake Media
Donaldson is the largest supplier of the complete intake systems and also of the replacement filters. The vendor profile appearing in CCJ also appears in the McIlvaine air intake website. CCJ is on the cutting edge of IT with live links from the vendor pages to articles in previous issues covering the company’s products. This includes observations by end users from the meetings which Scott and Bob religiously attend. Donaldson Company Profile in the Combined Cycle Journal, October 1, 2013
Braden
also has a CCJ company profile with
links to articles.
Braden Manufacturing
Company Profile in the Combined Cycle Journal, October 1, 2013
There are power points and a recording of a previous hot topic hour presentation by MFRI. Solutions to Reduce Total Cost of Ownership Utilizing High Efficiency Filter Media by Jerrod Walters and Bryan Xu - Hot Topic Hour March 14, 2013
The high
level discussion with the website as an aid received some praise from
participants including, “I am an engineer from XXX China which is working for
Gas Turbine filtration department. Recently, I have a trip to Europe and joined
the on-line meeting with my local colleagues yesterday. You are really providing
the perfect technical communication platform. I plan to join this website.”
We will continue updating the
website
Gas Turbine Air Filtration – Continuous Analyses
We will report on both sides of the
debate - (Clarcor on one side touting the medium F9 filters and others arguing
for the HEPA filters. We will also
explore the following:
§
Static
filters or pulsed filters
§
Number
of filtration stages
§
Filter
fibers or resins (glass and synthetic)
§
Filter
media (glass, synthetic, mix)
§
Filter
shape (pleating, cartridge, etc)
§
Variations to cover unusual ambient conditions such as arctic and ocean
platforms
§
Placement of and use of coalescers in conjunction with filters
§
Maintenance issues, such as replacement rate, ease of replacement, increased
energy loss with time, and coating of turbine blades
§
Testing
requirements
§
Air
pollution control aspects (may need to remove PM 2.5).
We
will conduct a number of follow-up webinars in the coming months.
The entire May 15 recording can be heard
at:
Gas
Intake Filters: HEPA or Medium Efficiency
101 minutes
You will need to enter your name and email address after clicking link to view
recording.
The individual presentations are as follows:
Gas Intake Filters: HEPA or Medium
Efficiency Webinar - Hot Topic Hour May 15, 2014
A high level discussion attended by knowledgeable end users, consultants, fiber
makers, media suppliers and filter manufacturers.
Revision Date:
5/15/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Lydall Filtration/Separation Group, Nederman, Filter
Addressing Moisture Issues by McLeod
Stephens, Nederman - Hot Topic Hour May 15, 2014
McLeod explained that the filter is part of a train of treatment elements with
the screen, weather hood coalescers, filters, evaporative cooler and droplet
eliminator.
Revision Date:
5/15/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Nederman, Filter
Geoff discussed the benefits of nanofibers including the lower pressure drop.
Revision Date:
5/15/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Lydall Filtration/Separation Group, Nanofiber
Paul Barilla, an independent consultant, explained that aall the decisions are
not straight forward. As shown in the slide, as you move downward the factors
affecting the decisions are less clear.
Revision Date:
5/15/2014
Tags:
221112 - Fossil Fuel
化石燃料,
Filter