generator set integration - cummins power generation · pdf filerecognize application...

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

[email protected]

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

mailto:[email protected]









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.


Mechanical Integration Topics

Location and Access

Sound Attenuation

Vibration

Seismic


Location and Access


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


Installation Review: Future Planning


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


Installation Review: Outdoor Installation


Installation Review: Accessibility


Rigging and Lifting


Sound Attenuation


Sound Basics


Sound Basics

100

Watts

100

Decibels


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


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


Sound Attenuation

95 dB(A)


Sound Attenuation

88 dB(A)

95 dB(A)


Sound Attenuation


Sound Attenuation

87 dB(A)


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


Installation Review


Vibration


Vibration Isolation


Installation Review


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


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.


Non Seismic Isolator

Seismic Isolator

Seismic


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


below the RRS



frequency


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


below the RRS



frequency


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


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


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


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


Specification Review – Circa 2000


Specification Review – Circa 2012


Short Period Spectral Response

UBC Zone 1 - 4 definition not current

Design force requirement based on SS value mapped by U.S. Geological Survey


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


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.


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


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










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.

generator set integration - cummins power generation · pdf filerecognize application...

Documents