Building Operators
Association of Colorado
$3.00
www.boac-colorado.org
April 2011
Inside This Issue . . .
Denver— New Rebates for Energy Savings
Colorado Springs—Maintenance of Life Safety Systems
VOA Painting Party
Anatomy of a Boiler Failure—A Different Perspective - Part 2
New Members!
Correction!
Joel Acosta & Kevin Constant
Sarah Hanus
Sally Hagan
Cushman & Wakefield
Conserve-A-Watt
FSGI
Tom Hartford & Nathan Smith
Ron Zielke & Sheila Barbee
Haymen CO
DPC Development CO
Wayne Larsen
Hortencio Oregon
Bob Shields
Renewing:
Jon Rasch
Transwestern
Jerry Manion
Kim Lewis
Caleb Dillon
Ruben Ramirez
Hot-Shots
ESCO
Rich Ramero
Steve Kirouac
Tony Griffe
Carol McCright
Kaiser Permanente
Brian Remington
Bruce Meyer
Jay McDonald
Mike Walker
Jim Palombo
Belfor
Cushman & Wakefield
Denver Options
Jeff Chartier
Richard Barkley
Matt Parker
Rocky Mtn Mechanical Sys
Jim Dolye
Atlers at Vail
Guy Dreier
Harry Gorham
Tom Schlader
Terry Elliott
Jack Kaufman
Lion Square
Nick Hanstein
Jack Smith/Steve McIntosh Shaun McCarty
Mitch Gorsevski
Super-Tech Filter
DPC Development CO
Alan Rice
Randy Roach
Kevin Walsh
Sondra McCoy
Bill
Todd
Millice Group Ltd
BOMA
Centennial
Realty
Advisors
Wayne Summers
Brett Cooley
Spencer
Frank
Engineer Extraordinaire
Haymen Co
Pat
Gorham
Jim Wessels
Jon Booth
Joe Shelly
Callahan Management
Tower Management CO
Daniel Waggner
Brian Smith
CBRE
Faith Enterprises
1
Denver Chapter Monthly Meeting
Topic: New Rebates for Energy Savings
Derek Shockley, Xcel Energy
Xcel Rebates, new rebates for energy
savings
Where: Plaza Tower One
6400 S Fiddlers Green Circle
Greenwood Village
PARKING VALIDATION Provided
Derek Shockley is the Trade Relations Manager
for Xcel Energy. He is responsible for managing
the trade partner activities for commercial demand side management programs throughout
Colorado. He has a diversified background in the
energy industry that includes planning, marketing,
sales, and project development work in the areas
of demand side management, national accounts,
new business start-ups, and applied research.
Derek holds a Bachelor Business Administration,
Emphasis Finance degree from Washburn University. He has been nationally recognized by the
Edison Electric Institute, and the Electric Power
Research Institute for his work promoting efficient
and environmentally friendly end-use technologies.
When: Wednesday, April 20th
Check in 11:00 am
Cost:
$20.00/members
$25.00/non-members
RSVP: April 15th 5:00 pm.
Reservations: web site
admin@boac-colorado.org or
303-374-8888
Upcoming Meetings: Subject to Change
May-Flame spray to show how to repair large shafts and metal items-unknown speaker
June-Denver Fire Dept. How to deal with inspections from the Fire Dept. unknown
speaker
July - Vibration and balancing on fans and motors-unknown speaker
Aug-Golf
April - Preferred Painting
May - Mathias Lock and Key
June - Frontier Mechanical
July - Haynes Mechanical
August - Rocky Mountain Mechanical
2
Colorado Springs Chapter Monthly Meeting
Topic: Maintenance of Life Safety
Systems
Jeff Hanenberg, the Colorado Springs Fire
Marshal will be presenting on building
maintenance as it pertains to fire and life
safety systems. He will identify common
causes of property damage and preventative measures that we can take as we
maintain our facilities. He will also discuss
code compliance issues. See you there!
Speaker: Jeff Hanenberg,
Fire Code Inspector
When: Thursday, April 14th @11:30 am
Where: Antler’s Grille
Executive Board Room
Cost:
$20.00 First Time VisitorsFREE
John
RSVP: Joel Copley at 719-599-3900 or
email to jacopley@trane.com
WELCOME NEW
DENVER BOARD MEMBERS:
President - Mike Walker
Vice President - Tamra McChesney
Past President - Brian Remington
Secretary - Brian Botcher
Treasurer - Pat Gorham
Speaker Chair - Wayne Summers
Asst. Speaker Chair - Billy Bratton
Membership Chair - Brian Smith
Technology Chair - Jon Rasch
If you have any questions or suggestions,
please feel free to approach any one of
them!
3
Is Your BOAC
Membership
Up To Date?
To check to see if your
membership is past due,
log in to the web site,
email admin@boaccolorado.org or
call 303-377-8888.
Job Opening:
St. Andrews United Methodist Church in Highlands Ranch. We are fairly large,
at 95,000 Sq.-Ft. We have a Central System chiller, AHU HVAC system, and
state of the art BAS and security.
We are in need of a Facilities Manager. The salary range is $44,000 to
$52,000. The responsibilities are significant, but basically include the MEP, plus
janitorial personnel and landscape, security, and general maintenance.
Contact Dave Willetts at 303-797-1294 during the day.
ome
Welc ime!
gt
Sprin
Work/Play Time?
What About Helping to
Make Someone’s Life Easier…
Volunteers of America ALWAYS
Needs our Help!
Contact Harry Gorham at 303-460-9264 or Pat Gorham at
303-804-4703 to find out how you, your friends and your
company can make a difference!
State Board
Chair
Kim Lewis
303-232-0090
Denver Board
Colorado Springs Board
President
Mitch Wibbels
719-491-7088
Vice President
Paul Ritter
719-473-8200
Chapter Secretary
John Darnielle
719-650-0894
Chapter Treasurer
State Contractor
Heather Gorham
admin@boac-colorado.org Chapter Treasurer
Pat Gorham
Phone 303-374-8888
303-804-4703
Fax 1-888-316-1896
Speaker Chair
Wayne Summers
Committee Member
Harry Gorham
303-419-6128
303-460-9264
Joel Copley
719-599-3900
Vice Chair
Billy Bratton
303-913-2583
President
Mike Walker
303-221-4644
State Secretary
Mary McAllister Vice President
303-573-9000
State Treasurer
Michael Benoit
Chapter Secretary
303-573-9000
4
Tamra McCnesney
303-904-7943
Brian Botcher
303-466-8800
Kevin Donnley
719-757-3020
Anatomy of a Boiler Failure—A Different Perspective - Part 2
By Gary J. Bases
Good boiler design practice
The report states that the boiler’s lower vestibule was full of flyash and had been for a very
long time. Post-accident operator interviews suggest the flyash may be have been there as
long as 10 years. Poor maintenance and inspection practices ignored this enclosed space. Not
surprisingly, this lack of attention is common throughout the power industry.
The boiler is a 1957 vintage 120-MW coal-fired radiant power boiler. This was a common boiler
design for virtually all utility boilers built from the mid-1940s through the 1960s. It was not until
1964 that the membrane tube wall design was developed and became the norm in utility boiler
practice. During this time period approximately 400 boilers of this design were built in the U.S.,
and most are still in operation. All of these boilers had similar steam capacity, tube wall construction, vestibules, and refractory/tube wall design. Does the boiler cross-section in Figure 5
look familiar to you?
5
5. A typical 1957 vintage one-pass boiler that is susceptible to a failure similar to that experienced at Salem Harbor Unit 3. There are approximately 400 of these boilers in active service
today. Source: BRIL Inc.
These are considered flat-studded or tangential-type boilers. They do not have membrane tube
walls, but rather use either flat-studded tubes or bare loose tubes to form the boiler and furnace walls. To keep the fire (and flyash) inside the firebox, refractory is applied over the outside of the tubes to form a protective, insulating wall.
Boilers of this type used either an “all-refractory design” with refractory (1 to 2 inches thick) on
the back side of the tubes or an “inner-cased design,” which uses a thin layer of refractory applied flush with the back side of the tubes and a 10-gauge metal casing installed over the refractory-backed tubes. The all-refractory design was less costly, especially in areas such as
vestibules and enclosures, and was therefore the most commonly used design. For this discussion, I focus on the “all-refractory design.”
In essence, the refractory must keep the fire inside the box in order to keep the boiler operating efficiently and to prevent flyash from penetrating or entering the vestibules in and around
the boiler (Figures 6 and 7). (Please note that the following photographs were not taken at Salem Harbor Unit 3 but at units of the same boiler design and configuration.)
6. A typical refractory failure inside a
boiler vestibule. Courtesy: BRIL Inc
7. A typical refractory failure inside a lower
furnace vestibule that’s similar to that of
Salem Harbor Unit 3. Courtesy: BRIL Inc.
6
8. A typical refractory failure in the superheater vestibule. Note the furnace wall with
exposed metal. Courtesy: BRIL Inc.
9. A typical burner area inside a windbox with exposed metal welded to tubes.
Courtesy: BRIL Inc.
7
BOAC Community Service
Your BOAC Efforts at work…..
8
CBRE—Plaza Tower One Painting Party March 12th
Left to Rt: Tia Cross, Harry Gorham, Dan
Simpson, Jing Jing Zhou, Sheri Zeterower,
Noelle Debarr, Pat Gorham
9
BOAC
P.O. Box 2559
Denver, CO 80201
April 2011 Newsletter
Please Expedite