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PowerHour webinar series for consulting engineersExperts you trust. Excellence you count on.
Generator Set Integration –Location, Sound, Vibration and Seismic
October 4, 2016 11:00 PDT / 2:00 EDT
(1PDH issued by Cummins)
Welcome!
PowerHour is designed to help our engineer partners to…
Keep up to date on products, technology, and codes and standards development
Interact with Cummins experts and gain access to ongoing technical support
Participate at your convenience, live or on-demand
Earn PDH
Technical tips:
Audio is available through teleconference, or your computer (don’t forget to unmute)
You are in “listen only” mode throughout the event
Use the WebEx Q&A Panel to submit questions, comments, and feedback
throughout the event. We will provide sufficient Q&A time after presentation
If you lose audio, get disconnected, or experience a poor connection, please
disconnect and reconnect
Report technical issues using the WebEx Q&A Panel, or email
PowerHour Experts you trust. Excellence you count on.
Meet your panelists
3PowerHour Experts you trust. Excellence you count on.
Mike Sanford
Application Engineering Group Leader
North America and Caribbean
Cummins presenter: Cummins facilitator:Tom Bakritzes,
Global Sales Training Manager
Your local Cummins contacts:
AZ, ID, NM, NV: Carl Knapp ([email protected]), Rocky Mountain Region
CO, MT, ND, UT, WY: Joe Pekarek ([email protected]), Rocky Mountain Region
IL, LA, NB, SD: John Kilinskis ([email protected]), Central Region
WI, MN, ND: Michael Munson ([email protected]), Central Region
MO, KS: Earnest Glaser ([email protected]), Central Region
TX: Scott Thomas ([email protected]), Gulf Region
FL, GA, NC: Robert Kelly ([email protected]), South Region
IN, KY, OH, TN, WV: Thomas Stadulis ([email protected]), East Region
For other states and territories, email [email protected] or visit http://power.cummins.com/sales-service-locator
Course Objectives
Participants will be able to:
Recognize application requirements impacted by generator set location and
vibration.
Describe the impact of seismic certification as it applies to power generation
equipment.
Identify key factors that influence perceived sound at the installation level.
Describe common failure modes seen in the field by gaining exposure to
real-world applications in order to increase system reliability and reduce
costly design changes.
PowerHour Experts you trust. Excellence you count on.
Mechanical Integration Topics
Location and Access
Sound Attenuation
Vibration
Seismic
PowerHour Experts you trust. Excellence you count on.
Location and Access: Indoor Installations
Safety
– Dedicated space / equipment room
– Working area / height
Accessibility
– Inspection and maintenance
– Service and testing
– Fueling
Failure mode(s)
– Flooding
– Precipitation ingress
Future planning
PowerHour Experts you trust. Excellence you count on.
Location and Access: Outdoor Installations
Ease of access
– Fuel fill
– Load bank connections
Weather events
– Snow loading / plowing
Proximity to occupied facilities
– Windows / doors
– Ventilation intakes
PowerHour Experts you trust. Excellence you count on.
Sound Basics
Engine noise
– 100 -110dB(A)@1m
Cooling fan noise
– 100-105dB(A)@1m
Alternator noise
– 80 – 90dB(A)@1m
Structural/mechanical noise
– Vibration, Gears etc.
Un-silenced engine exhaust
– 120-130dB(A)@1m
PowerHour Experts you trust. Excellence you count on.
Sound Attenuation: Overview
Datasheets represent “free field” data
– Conditions at site and surrounding structures dramatically change perception of
sound
Be cognizant of sound level AND frequency
– Higher frequencies dissipate quickly
– Lower frequencies carry significant distances
Location is the single greatest ally or enemy
– Codes are almost always based on sound pressure at property line
– Should be a consideration during the design phase
PowerHour Experts you trust. Excellence you count on.
Sound Attenuation Strategies
Increase distance from receiver
– Sound pressure drops ~6 dB(A) at 2x
distance
High mass, absorptive barriers
Avoid reflective surfaces
– Perceived sound pressure increases:
• 3dBA due to a reflective surface
• 5dBA for two reflective surfaces
Direct noise away from sensitive locations
– Radiator discharge turning vanes
– Exhaust discharge elbows
PowerHour Experts you trust. Excellence you count on.
Anchorage
Additional considerations to the anchorage recommendations
– Anchorage pad thickness to be 1.5 times the anchor-embedment depth.
– Specified width at each anchor location, between the anchor head and connected equipment, for
tensile load distribution.
– Foundation should extend at least 12 inches beyond the skid on all sides.
Seismic LevelIsolator
Attachment
Anchor
Embedment
Minimum
Edge
Distance
Concrete
Compressive
Strength
Slab
Thickness
SDS <= 1.0
Z/H = 0.04 per Isolator (48
total)
Hilti-HY 150 MAX-
SD + Has Ø3/4”
4.0” Min 6.0” Min
3000 PSI
6.0” Min
SDS <= 2.1
Z/H = 0.010.0” Min 12.0” Min 12.0” Min
PowerHour Experts you trust. Excellence you count on.
Vibration Isolators
Vibration isolation is a key success
factor helping to ensure generator set
survivability.
Creating the right foundation and
incorporating the right vibration
isolators are important contributors to
achieving this goal.
Seismic isolators ensure the generator
set will stay attached to the foundation
following a seismic event and are not
enough by themselves to meet the
code.
PowerHour Experts you trust. Excellence you count on.
Non Seismic Isolator
Seismic Isolator
Standard/Code Comparison –Testing Requirements
IBC/OSHPD
20 second strong motion
duration
Up to 4 points permitted
below the RRS
RRS frequency envelope to
75% of lowest resonance
RRS developed based on
SDS and z/h
No increase factor for uniaxial
testing
Equipment does not need to
run during test
No seismic aging required
IEEE 344
10-15 second strong motion
duration
Up to 5 points permitted
below the RRS
RRS frequency envelope to
70% of lowest resonance
frequency
RRS developed based on
floor response spectrum
No increase factor for uniaxial
testing
Equipment may need to run
during test
Seismic aging required
CSA N289
15 second strong motion
duration
Up to 5 points permitted
below the RRS
RRS frequency envelope to
70% of lowest resonance
frequency
RRS developed based on
floor response spectrum
40% increase factor for
uniaxial testing
Equipment may need to run
during test
Seismic aging may be
required33PowerHour Experts you trust. Excellence you count on.
International Building Code
Result of work conducted in 1994 to merge many regional codes into the ICC (International Code Council)
– Building Officials Code Administrators (BOCA): East Coast, Midwest
– Southern Building Code Congress International (SBCCI): Southeast
– International Conference of Building Officials (ICBO): West Coast
IBC is recognized as the model building code for the United States
PowerHour Experts you trust. Excellence you count on.
IBC Code Requirement
Critical equipment is considered a component of structure and should meet
specific performance requirement to withstand seismic loads and wind loads
(2006 version) – “remain online and functional”
IBC Code specifically addresses both design and installation of building
systems with emphasis on performance
Equipment manufacturers certify component design and recommend
installation guidelines
– Local installation compliance is the responsibility of the installer following
manufacturer recommendations
PowerHour Experts you trust. Excellence you count on.
IBC Code Requirement
Critical equipment is considered a component of structure and should meet
specific performance requirement to withstand seismic loads and wind loads
(2006 version) – “remain online and functional”
IBC Code specifically addresses both design and installation of building
systems with emphasis on performance
Equipment manufacturers certify component design and recommend
installation guidelines
– Local installation compliance is the responsibility of the installer following
manufacturer recommendations
PowerHour Experts you trust. Excellence you count on.
IBC Adoption
*Map source: International Code Council website: www.iccsafe.orgPowerHour Experts you trust. Excellence you count on.
State and IBC Adoption
AL S09, L HI X06 MI X12 NC X09 UT X12
AK X09 ID X12 MN X12 ND S12, L VT
AZ S12, L IL S09, L MS S12, L OH X09 VA X12
AR X12 IN X12 MO S12, L OK X15 WA X12
CA X12 IA S09, L MT X12 OR X12 WV X12
CO S15, L KS L NE S12, L PA X09 WI X09
CT X03 KY X12 NV S12, L RI X12 WY X15, L
DE L12 LA X12 NH X09 SC X12
DC X12 ME X09 NJ X15 SD S15, L
FL X12 MD X15 NM X09 TN S06, L
GA X12 MA X09 NY X06 TX L
IBC Adoption – State Level
*Table source: International Code Council website: www.iccsafe.org | January 2016
X: Effective Statewide L: Adopted by Local Governments S: Statewide Adoption with Limitations
PowerHour Experts you trust. Excellence you count on.
IBC Adoption – State LevelState and IBC Adoption
AL S09, L HI X06 MI X12 NC X09 UT X12
AK X09 ID X12 MN X12 ND S12, L VT
AZ S12, L IL S09, L MS S12, L OH X09 VA X12
AR X12 IN X12 MO S12, L OK X15 WA X12
CA X12 IA S09, L MT X12 OR X12 WV X12
CO S15, L KS L NE S12, L PA X09 WI X09
CT X03 KY X12 NV S12, L RI X12 WY X15, L
DE L12 LA X12 NH X09 SC X12
DC X12 ME X09 NJ X15 SD S15, L
FL X12 MD X15 NM X09 TN S06, L
GA X12 MA X09 NY X06 TX L
*Table source: International Code Council website: www.iccsafe.org | January 2016
X: Effective Statewide L: Adopted by Local Governments S: Statewide Adoption with Limitations
PowerHour Experts you trust. Excellence you count on.
Short Period Spectral Response
UBC Zone 1 - 4 definition not current
Design force requirement based on SS value mapped by U.S. Geological Survey
PowerHour Experts you trust. Excellence you count on.
Short Period Spectral Response
*Map source: USGS website: http://earthquake.usgs.gov/hazards/designmaps/PowerHour Experts you trust. Excellence you count on.
IBC Compliance and Testing
IBC certification requirement:
– Manufacturer shall test or analyze the component that shall
remain operable after a seismic event
• Actual test on a shake table
• Analytical method using dynamic characteristics and forces
• Other more rigorous analyses
– Supplier of the equipment must provide certificate of compliance
– Proper product labeling required per IBC 1703.5
PowerHour Experts you trust. Excellence you count on.
Final Thoughts
Utilize the experience of senior engineers and generator set
partners to catch issues before hardware is installed.
Common sense goes a long way with the mechanical
components of the system, most issues can be seen, heard,
smelled, or felt.
Consider the physical installation and maintenance/ service
requirements of your system during the design phase to
alleviate issues with installation/commissioning.
PowerHour Experts you trust. Excellence you count on.
Q&A Type your questions, comments, feedback in the WebEx
Q&A box. We will get to as many questions as we can
We will publish consolidated FAQ along with
presentation and webinar recording on
powersuite.cummins.com
49PowerHour Experts you trust. Excellence you count on.
More questions or support needed? Here are your local Cummins contacts:
AZ, ID, NM, NV: Carl Knapp ([email protected]), Rocky Mountain Region
CO, MT, ND, UT, WY: Joe Pekarek ([email protected]), Rocky Mountain Region
IL, LA, NB, SD: John Kilinskis ([email protected]), Central Region
WI, MN, ND: Michael Munson ([email protected]), Central Region
MO, KS: Earnest Glaser ([email protected]), Central Region
TX: Scott Thomas ([email protected]), Gulf Region
FL, GA, NC: Robert Kelly ([email protected]), South Region
IN, KY, OH, TN, WV: Thomas Stadulis ([email protected]), East Region
For other states and territories, email [email protected] or visit http://power.cummins.com/sales-service-locator
Closing
Watch out for a follow-up email including– A Link to webinar recording
– A PDH Certificate
– A 2-minute survey link. Tell us how we did and how we can improve
Visit powersuite.cummins.com for – PowerHour webinar recording, presentation and FAQ archive
– Other Cummins Continuing Education programs
– Sizing and spec development tool
November webinar: Introduction to Combined Heat and
Power (CHP)50PowerHour Experts you trust. Excellence you count on.