cummins qsk50 dual fuel for pressure pumping · cummins qsk50 dual fuel for ... cummins qsk50 tier...
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Cummins QSK50 Dual Fuel for Pressure PumpingShane Cannon
Dual Fuel Market LeaderDual Fuel Market Leader
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Environmental Benefits
Economic Benefits
Drivers for Natural GasIn Cummins Off Highway Applications
Energy Policy
Economic Benefits
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Natural Gas Adoption By HHP Market
Su
pp
lyD
em
an
d
Stationary –
O&G Gas CompressionTraditional Spark-Ignited Market)
Stationary –
Power Generation
Now
3+ yrs
Su
pp
lyD
em
an
dD
em
an
d
(Traditional Spark-Ignited Market)
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Cummins QSK50 Tier 2 Dual Fuel Kit
Mixer
Dynamic Fuel
Actuator Valve
Off engine Gas Train
OEM Integrated On-Engine Gas Manifold
CTT Optimized Mixers
Knock Detection
EGT’s
Mixer
Customer Interface PanelStainless Steel Muffler w/ Diesel
Oxidation Catalyst
Reversible Customer
Connection
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QSK50 Dual Fuel Kit
� QSK50 EPA Tier 2 Dual Fuel Kit, 2250 - 2500hp
– Retrofit and First fit
� Performance is transparent to the QSK50 diesel with no change in installation requirements or maintenance and life to overhaul intervals
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� Delivers 70% peak substitution rate, 50% duty cycle average
� Gas train is rated for outdoor use and meets NFPA and CSA requirements necessary for certification
� One system warranty, supported by the Cummins Global Distribution Network
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� Substitution Rates
� The Impacts of Gas Quality on
Substitution Rates
Performance, Emissions and Optimization
� Dual Fuel Emissions Compared
to Diesel Emissions
� Optimizing Combustion
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Please contact Shane Cannon at [email protected] for
the content that was shared in this section
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Challenges and Lessons Learned
� Stable pressure in the gas delivery system is critical to
achieving up time targets and protecting system components
� An initially inconsistent HHP signal has since proven to be
quite reliable
� Cooling systems maintenance and optimization improves
overall system up time and increases diesel displacementoverall system up time and increases diesel displacement
� Air filters should be clean and balanced bank-to-bank
� Kits can be installed on older engines (~7500hrs) with a little
routine maintenance
� Every engine is a bit unique and a little extra time spent tuning
during commissioning pays dividends on the job
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Successes and Accomplishments
� Dual Fuel Kits in operation for more than 18 months
� First in the industry to run a full spread on field gas
� 500,000 hhp by YE 2013
� 30,000+ dual fuel engine hours
� ~ 280,000 diesel gallons displaced
– ~ 100,000 gallons of LNG
– ~30 Mmcf of field gas
� No base engine failures to date!!!!
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Closing Comments� Dual Fuel Technology delivers quantifiable environmental and
economic benefits when implemented properly
� Engines are capable of running field gas but processed gas offers advantages:
– Higher substitution rates
– Better overall efficiencies
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– Better emissions performance
– Lower capital cost of the kit
� Engine manufacturer’s kits provide optimized solutions offering the greatest TCO benefits, engine warranty and reassurance of emissions compliance
� Cummins is committed to advancing the use of natural gas in off-highway engine applications
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9/23/2013 Cummins Confidential10Copyright 2013 Baker Hughes Incorpo
All rights res